Posts Tagged ‘Sri Lanka’
In Rāvana’s Throne Room: A Journey into the Knuckles Range
Dumbara Falls, a stunning site located deep in the Knuckles Range that was our home for two nights.
In the great Hindu epic the Ramayana the principle antagonist is Rāvana, king of Lanka. He is an intelligent and sophisticated deity who, through complicated circumstances involving key siblings, is cast in opposition to the hero Rama. I first encountered and read the Ramayana in Sally Noorullah’s South Asian Studies class at AIS/Dhaka. It was a bold move to incorporate an Indian epic in its entirety at a school that was otherwise quite American. At the time, we used a dense translation of Valmiki’s work that was challenging to get through (luckily the library had the visually-rich Amar Chitra Katha comic version to support our understanding). Ms. Noorullah, who later mentored me in my first year of teaching at AIS/D, brought passion and insight to the way she taught the themes of good/evil, dharma and the hero’s adventure. We capped off the learning with a week-long field trip to Calcutta (now Kolkata) where the class looked for evidence of the epic in museums, on the streets, at various temples, on the Hooghly river and in the delicious food of a myriad restaurants. The sections of the epic involving Lanka, the monkey king Hanuman and the penultimate battle were fixtures in my imagination. Now, many years later, I find myself living in Sri Lanka, a place where Ramayana tourism is developing into a niche market alongside beach, tea and heritage tourism. At the same time, there has been a revival of interest in Rāvana’s legacy and rethinking his traditional role as the villain of the story.
Stories of this mythic king filtered through my thoughts and dreams as a small group of us trekked deep into a wilderness that is closely associated with the legend of Rāvana. In August my family and I had just returned to Colombo from a restful summer holiday in the Pacific Northwest. All of us had been vaccinated and there was a window of time before OSC started the new school year. We didn’t know it then but Sri Lanka was on the verge of entering another prolonged lockdown. With help from Nadeera Weerasinghe at Sir John’s Bungalow I was able to plan and set up a three day backpacking trek that would take us deeper and further into the heart of the Knuckles (Dumbara) Range than any previous trip. I recruited veterans from last year’s Sinhagala trek including my son Lenny, former student Rashmi Bopitiya and colleague Andry Dejong. Crucially we were able to get the expert services of KC, the talented guide and herpetologist that has assisted my field visits to the Knuckles on previous visits.
Our destination was Duwili Eli (Falls), a location that is spoken of in whispers amongst hiking fraternities but is rarely visited by others because of the difficult and tiring access. Andry had visited the area soon after she arrived in Sri Lanka and our friend Mangala Karunaratne had camped at several locations near the falls. The series of falls that is associated with Duwili Eli and the idea of a long trek in a primeval forest in the Western Ghats/Sri Lanka Biodiversity Hotspots were enticing. In February on a long weekend visit to Sir John’s, KC had taken a different group of us towards the abandoned agricultural settlement of Walpolamulla, a stop about 4 km from the road head on the way to Duwili Eli. It was evident from that hike that this part of the Knuckles offered rich opportunities to experience forest wilderness and biodiversity. It was just a matter of having enough time and in August 2021 all the pieces came together serendipitously.
Beginning parts of the trail to Walpolamulla and beyond. The Forest Department maintains the trail.
Hikers in the Knuckles: (from left) Rashmi, Andry, KC and Lenny
Strava heat maps from our three days of hiking in the Dumbara Falls and Duwili Ella/Eli area.
Day 1
With the goal of reaching Duwili Eli, it works to plan a multi-day hike with different stages and a base camp. KC had done the hike numerous times and we followed his guidance. Our group took a prep day to drive from Colombo to Riverston and Sir John’s bungalow. That gave us a chance to start our first full day of hiking refreshed.
We did the 13 km hike to Dumbara Falls on the first leg of our trek . The path starts out at Pitawala and crosses the Telgamu Oya before climbing up to the Manigala ridge. I had first been here with a group of OSC WWW students but torrential rains had forced us to retreat. The weather this time was relatively cool with a breeze and overcast skies-perfect for hiking. The path was surprising free of other trekkers-a consequence of the COVID situation and looming lock down. In the end, over the whole three day period we would meet only two other people on the trail.
At Walpolamulla we paused at the old terraced fields to take in a panoramic view of our paths ahead. The building at the former village have mostly been abandoned and it site now mainly used for grazing and a trekking campsite. From the terraces you get fine view over the Kalu Ganga valley towards Duwili Eli. On the opposite (eastern) slope several slivers of water in the forest were visible to the naked eye. The waterfalls were enclosed in dense forest and seemed rather far away. Above them loomed the distinctivly shaped Thunhisgala. This three summited mountain (1627 m) is also named Kalupahana for its tallest point. It is visible in the Meemure valley, especially on the route to the Nitrox Cave (see my Duke of Edinburgh blog post from last year).
View eastwards across the valley from Walpolamulla’s terraced slopes. Dumbara Falls, Duwili Eli and Thunhisgala/Kalupahana peak are all visible. Note the clearing in the, otherwise dense, forest-a patch of grassland that may have been a chena (slash & burn) plot in years past.
The path descends into the valley on a forested path that is still used by buffalo herders during the wet season. The area is very wild but every once in a while we would see piles of stones and tile chards that indicated a human presence at some point in the past. At one stream, a slab of lichen-covered granite once must have served as an altar (there was no evidence of modern iconography and I wondered if it was pre-Buddhist). We had timed our trek during a relatively dry spell. The South Western monsoon was hammering the windward side of the Knuckles and the summits were usually incased in mist, as the name Dumbara (misty mountains) hints at. There were few leeches on the trail but we did discover ticks and chiggers later. For the rest of the hike there were few opportunities to see where we were and the trail was entirely under the forest canopy.
In the late afternoon the path wound through a gallery of tall trees and enormous boulders before taking us to Dumbara Falls, the site of our basecamp. Here, the water from upper tributaries break through ramparts of a granite canyon to cascade 20 or so meters into a dark, elliptical pool. Over millions of years the force of the water has ripped away chunks of rock in large, slab fragments. Several of those slabs provide ideal camping spots-above the torrent of water at a level gradient with a sweet view of the thundering falls.
Forest vignettes from the trail to Duwili Eli featuring a mix of native, cultivated and invasive species.
Day 2
After a camp breakfast we zipped up our tents, put away food and left our campsite on the 2nd day to explore upstream to Duwili Eli with light packs. It is a steep but relatively short 4-7 kilometers of walking (my Strava heat does not seem to be accurate because of the tree cover). The highlight this day was the exquisite forest and different streams. I was curious to explore out to a patch of pantana (grasslands) on the edge of the forest. It seems to have been a chena (slash & burn) plot from some time ago but KC was unsure of its origin. The grass was so high that I was not able to get my bearings or a decent picture of the surrounding hills.
Duwili Eli is the top-most in the series of waterfalls. It includes a cave that is part of a ledge that the water falls over. A Ficus tree has colonized the face and its roots provide a natural protective grate. We reached the area just as a midday shower blew down across the high Knuckles ridge. When it cleared, we took in the views back towards Walpolamulla and Riverston. The cave is a popular camping spot and there is ample dry space. There was a small inscription in a script that was not obvious and it looked as if the cave had been visited for many years. I wondered about it and what links to Rāvana’s legend it might hold.
The view looking westwards back to Walpolamulla from the ledge at Duwili Eli. On the opposite side of the valley (on the center left) is the small terraced clearing at Walpolamulla. The Manigala ridge is on the top right and Pitawala Pantana is a hazy line on the horizon. Dumbara Falls is located deep in the forested valley below.
I was prepared for macro photography on this trip but I found that much my energy was expended on just getting around and I came back with few exiting images. Rashmi was using her new pair of binoculars and we were on the lookout for birds on all days. On the path returning to camp I caught a glimpse of a female Malabar trogon and then a pair of Sri Lankan Grey Hornbills. The drone of the Yellow Fronted Barbet was our constant companion when we were away from the thunder of the stream. When we got back to camp we swam in the pool below Dumbara Falls-a great way to wash away the sweat and strain of the day.
Campsite at Dumbara Falls.
Day 3
For a 2nd morning in a row we awoke to the thunder of the falls and beams of sunlight streaming through the high forested ridge. KC’s cooking did wonders for our morale and Lenny and I certainly needed it. Though Dumbara Falls offers one the finest campsites that we have been in, our tent was pitched on bare rock and we had neglected to bring sleeping mats! KC cooked up fried eggs on a well-used frying pan and added them to our vat of Maggie noodles for our nightly meals. For breakfast we had cereal and hot chocolate -the simple things always make such a difference in the wilderness.
The trail back followed the same route.The major stream crossing at the Kalu Ganga gave us a chance to refreshed and rehydrated and to look for creatures. There were dozens of emerald winged dragonflies-most likely Shining Gossamerwings (Euphaea splendens) – filtering above the water. Moving away from the stream, KC found a Brown Vine Snake (Ahaetulla pulverulenta) consuming a (still alive) Dry Zone Lowland Kangaroo Lizard (Otocryptis nigristigma). Both of these are not commonly seen. The toughest part was climbing back up to Walpolamulla in the middle (and heat) of the day. Crossing the saddle near Manigala we encountered a brief, rather refreshing rain shower. We were back at the trailhead at Pitawala around 2:00. After dropping off KC our group of four returned to Sir John’s to have a night of rest before returning to Colombo. All of us were a bit sore from carrying the packs but when the lockdown set in 24 hours after returning we realized that we had been very fortunate to get away. As for Rāvana’s secrets, we need a few more lifetimes to explore the Dumbara Hills…
Life on the forest floor and in the canopy.
A mosaic of diversity from the Knuckles take on the August trek and February 2021 visit. From the top to bottom: Male Nosed Lizard (Ceratophora tennentii), Knuckles Pygmy Lizard (Caphotis dumbara), Frog (not yet identified), Chalky Percher(Diplacodes trivialis), Spotted Locust (Aularches miliaris), Female Leaf Nosed Lizard (Ceratophora tennentii).
REFERENCES
Bambaradeniya Channa and S P Ekanayake. A Guide to the Biodiversity of the Knuckles Forest Range. Colombo: IUCN. 2003. Print.
De Silva, Anslem, Ed. The Diversity of the Dumbara Mountains. (Lyriocephalus Special Issue). November 2005. Amphibia and Reptile Research Organization of Sri Lanka. Print.
Harinda. “Knuckles Duwili Eli through Walpolamulla – The Most Wanted trip of the year.” Lakdasun Trips. April 24. Web.
Lockwood, Ian. “Knuckles Explorations.” Ian Lockwood Blog. January 2019. Web.
Lockwood, Ian. “Qualifying in the Time of the Pandemic: A DofE QAJ in Meemure.” CAS Pathways. 12 May 2020. Web.
Jayewardene, Sunela. The Line of Lanka: Myths & Memoires of an Island. Colombo: Sail Fish, 2017. Print.
Sanmugeswaran, Pathmanesan. “Reclaiming Ravana in Sri Lanka: Ravana’s Sinhala Buddhist Apotheosis and Tamil Responses.” South Asia: Journal of South Asian Studies. 2019. Web.
A panorama of the Knuckles Range looking south from Riverston. Thunhisgala/Kalupahana peak is visible in the far right. Sri Pada can be seen on the horizon to the right of the center. Panoramic image from February 2021 visit.
Thattekad Winter 2019 Visit
A kaleidoscope of Thattekad’s birds from the December trip. Clockwise from upper left: Gray Jungle Fowl (Gallus sonneratii), Sri Lanka Frogmouth (Batrachostomus moniliger), Fairy Bluebird (Irena puella), Greater Racket-Tailed Drongo (Dicrurus paradiseus), White Bellied Blue Flycatcher (female) Flycatcher (Cyronis pallipes), Mottled Wood Owl (Strix ocellata), Slaty-legged Crake (Rallina eurizonoides), Streak-throated Woodpecker (Picus xanthopygaeus), birding group in action, Forest Eagle-owl (Bubo nipalensis), Flame-throated Bulbul (Pycnonotus gularis), Indian Pitta (Pitta brachyura), Orange-headed Thrush (Geokichla citrina), Jerdon’s Nightjar (Caprimulgus atripennis), Malabar Trogon (Harpactes fasciatus).
A highlight of the winter holidays was spending time in Thattekad with Lenny looking for and photographing the key endemic bird species of the Western Ghats/Sri Lanka biodiversity hotspot. My time staying with KV Eldhose at Thattekad last June (as documented in an earlier post) was quiet but rewarding. The December visit was during peak season and Eldhose’s place was full up and rocking. Our four days and three nights were a fast-paced series of birding encounters with many highlights that have taken me months (and an unplanned curfew/lock down thanks to COVID-19) to process and appreciate. Unlike my normally solitary bird forays, the December outings in Thattekad were accomplished as part of a group(s). Lenny and I were there with guided teams of photographers from Pune and Chennai and then independent birders from the US and UK. As usual, either Eldhose or his trusty lieutenants Adjomon and Vimal accompanied the groups out.
In mid-December Lenny and I took a scenic drive from Kodai down to Bodi, over the Ghats and through the Cardamom Hills to reach Thattekad (about six hours of driving). We had an auspicious start when our arrival coincided with the pursuit of one of the most difficult birds to see in the Western Ghats/Sri Lanka biodiversity hotspot. A pair of Sri Lanka Bay Owls (Phodilus assimilis) was roosting in the primary forest and we were invited to take a peak. After a short 20 minute drive up the road Vimal guided us into a thick tangle of canes, dense shrubbery and towering rainforest trees. My 600 mm lens was still cold from having been up in Kodai and it fogged up when I took it out of the pelican case. It took nearly an hour to acclimatize so the shots of the Bay owl were taken with the 200-500 mm lens that Lenny used on the trip (we had taken it out to photograph Euphorbia trees for Bruce Dejong on the Bodi ghat).
SrI Lanka or Ceylon Bay Owls (Phodilus assimilis) at Thattekad primary forest. Guiding courtesy of KV Eldhose & Vimal Niravathu.
Thattekad primary forest area in winter light.
All of Eldhose’s cottages were full and we stayed in the main house. He was busy running his operation with key support provided by his wife Amy and daughter Ashy. The groups from Chennai and Pune were friendly and during the brief moments where we weren’t out finding birds we shared stories and images. The Chennai group was composed of middle aged and older men from the Photographic Society of Madras and was led by Saravanan Janakarajan. We spent time with them in the hides, in the primary forest and in the evening looking for owls. Lenny and I also got to know Jim and Maggie, a friendly couple from Seattle.
A SUPERB DAILY ROUTINE
Our pattern was to visit a hide visit close to Eldhose’s home at first light. That offered a chance to photograph the reclusive Slaty-breasted Rail (Gallirallus striatus) and then the more reliable starlings, trees pies, woodpeckers and drongos. The hide is close to the house and cottages but it is tiny and we had to take turns. My photographs were taken on the 2nd last morning. Rather than have breakfast at home, all the groups headed out to the primary forest 7:30 and ate breakfast on the way at Kuttampuzha. A simple road side café overlooking a tributary of the Periyar river offered classic Kerala breakfast fare (appam, puttu, paratha, beef curry, chickpeas etc.)
The primary forest, where most of the key birding is accomplished, is actually not a large forest area like Parambikulam, Periyar or Vazhachal. It isn’t even technically part of the Salim Ali Sanctuary, the protected area that Thattekad is associated with. But there is enough habitat diversity and remnant lowlands tropical rainforest to offer opportunities to see all sorts of key Western Ghats birds. It’s not the sort of place that you can wander around on your own and we were accompanied by Adjomon and Vimal. They had their hands full and it would have been better to be in a smaller group but we did fine. The habitat is ideal for Malabar Trogons (Harpactes fasciatus), which I never tire of photographing. They are shy but will sit still in a shaded area if you are fortunate. We saw Sri Lankan Frogmouths (Batrachostomus moniliger) on three different occasions and the guides have several spots that they check reliably.
Our birding mornings typically stretched on to about 1:00-2:00 PM and then we headed back to Eldhose’s to eat, rest briefly and get ready for the afternoon programs. There was a rotation of hides to visit and the groups took turns visiting them. Just behind his newly constructed rooms, a rare Slaty-legged Crake (Rallina eurizonoides) appeared like clockwork every afternoon at the edge of the wetland to look for mealworms. The other two hides are the “Treepie” and “Flycatcher hides.” Both of these are located on privately owned land that adjoins forest patches. They offer unparalleled opportunities to see and photograph key species up close and personal. White-bellied Treepie (Dendrocitta leucogastra), Chestnut-tailed Starling (Sturnia malabarica), Red Spurfowl (Galloperdix spadicea) and Fairy Bluebird (Irena puella) were my personal favorites at the Treepie hide. Lenny and I spent a wonderful afternoon-almost three hours- at the Flycatcher hide with Jim and Maggie. The diversity of flycatchers and other birds was truly dazzling and it was difficult to keep track of the different species as they came in for an afternoon bath and feed. The key flycatchers included the Blue-throated flycatcher (Cyornis rubeculoides), White-bellied Blue Flycatcher (Cyronis pallipes), Rusty-tailed Flycatcher (Muscicapa ruficauda) and Indian paradise flycatcher (Terpsiphone paradisi). We were also treated to exquisite views of an Indian Pitta (Pitta brachyura), Orange-headed Thrush (Geokichla citrina) and Malabar Whistling-thrush (Myophonus horsfieldii).
Evenings at Eldhose’s always started with an effort to see the Mottled Wood Owl (Strix ocellata) at twilight. This experience had been a highlight of the June trip and sure enough an individual of this rare endemic species came back this time. All of us photographers, armed with tripods and lenses (see images), were lined up and seated for the show. We had one excellent sighting and then two nights where it decided not to visit. Before dinner we had the opportunity to go out looking for rare night birds in the nearby secondary forest. Here the rarities included the Great Eared-nightjar (Lyncornis macrotis) and Forest Eagle-owl (Bubo nipalensis). The nightjar sat in the same place very evening while the Forest Eagle-owl was shy and hard to see. I did manage a blurry image on the 2nd evening.
Indian Pitta (Pitta brachyura) bear Thattekad. Hide courtesy of KV Eldhose.
Hilltop birding inside the primary forest. The open rock faces provide good views of the canopy. There are remnants of ancient humans living here in disused grinding stones and what might be collapsed dolmans. A family of adivasis was camped at the spot and had permission to collect minor forest products.
On our last morning before Lenny and I returned to Kodai we had a chance to photograph the Grey Jungle Fowl (Gallus sonneratii). This is a bird that I have been listening to for much of my life and I’ve frequently seen it on hikes in the Palani Hills. But the sighting near Eldhose’s gave me a whole new appreciation for its beauty (especially in the male individuals). Soon after we packed up, said goodbye to Eldhose, Amy and Ashy and headed back to Kodai to be there in time for a Christmas in the hills. The sightings of birds and experiences in Thattekad left us with an overwhelming sense of awe and appreciation for the diversity of winged life forms in the southern Western Ghats.
Bird watching and photography gear at KV Eldhose’s on a brief break from the action.
FURTHER READING & REFERENCES
Ali, Salim. Birds of Kerala, 3rd Edition. Kerala Forest & Wildlife Department. Thiruvananthapuram, 1999.Print.
Birding South India. (Eldhose’s website). Web.
Grimmett, Richard Carol Inskipp and Tim Inskipp. Birds of the Indian Subcontinent, Second Edition. London: Helms Field Guide/Oxford University Press, 2011. Print.
Kazmierczak, Krys. and Raj Singh. A Birdwatcher’ Guide to India. Devon, UK: Prion,1998. Print.
Rasmussen, Pamela C. and John Anderson. Birds of South Asia: The Ripley Guide. Volumes 1 &2, Second Edition. Washington DC: Smithsonian, 2012. Print.
Sreenivasan, Ramki. “Thattekad Check List and Trip Report.” Birds of India. ND. Web.
Palani Hills Sky Island Landcover Changes at the ATBC Asia Pacific
The opening ceremony of the ATBC meeting featured several cultural shows including this impressive fire dance.
Last September Sri Lanka hosted the Association for Tropical Biology & Conservation (ATBC) Asia Pacific chapter meeting at the MAS Athena center outside of Colombo. This was an important gathering, drawing scientists, conservationists and NGOS from across the country, South Asian region and globe to review different studies and approaches. The theme was “Bridging the elements of biodiversity conservation: Save, Study, Use.”
Earlier in 2019 I had met and interacted with Nimal and Savitri Gunatilleke, the distinguished Peradeniya University professors. They have been deeply involved with forest scientific studies and restoration efforts in Sinharaja and the rest of the island. We had enjoyed several conversations about similarities and differences in the Western Ghats/Sri Lanka biodiversity Hotspot. Nimal encouraged me to submit the findings of the grasslands group published in PLOS ONE. The idea of using satellite imagery to show the drama of land cover change in the WG/SL hotspot is a powerful tool for conservationists that is only just being realized (see the May 2018 blog post for details). After consulting with Robin Vijayan, Arasu and some of the other co-authors, I submitted a proposal and was invited to share the conclusions at ATBC in a poster display.
Poster designed by the author for the ATBC conference.
I was able to get PD time away from normal teaching duties that allowed me to attend the opening and first day of ATBC events. There were some fascinating presentations and interactive workshops. Maithripala Sirisena, the president of Sri Lanka at the time (and also the minister for Environment), was the chief guest. The main thrust of his talk was the remarkable legacy that Sri Lanka’s farmers have with producing abundant food surpluses without endangering the country’s wildlife (both historically and to some extent today). The keynote talk by Sejal Worah from WWF-India on adapting to rapid change to better protect biodiversity. Madhu Verma, from the Indian Institute of Forest Management, spoke of environmental economic and how putting environmental value on ecosystem services is a key step to more effective conservation. There were a whole series of shorter talks and workshops over the next three days. I went to interesting talks by Nimal (on restoration in fern lands) and later on presentations by representatives from ATREE the French Institute of Pondicherry. I enjoyed several excellent session on Wednesday morning. Anjali Watson& Andrew Kittle’s (Wilderness & Wildlife Conservation Trust) “cat talk” about their work with leopards in the Central Highlands was a highlight.
Cover from ATBC journal and copy of page 243.
FURTHER READING & REFERENCES
Arsumani, M. et al. “Not seeing the grass for the trees: Timber plantations and agriculture shrink tropical montane grassland by two-thirds over four decades in the Palani Hills, a Western Ghats Sky Island.” PLOS One. January 2018. Web.
Association for Tropical Biodiversity & Conservation (ATBC) Asia Pacific . Proceedings Book. Web.
Land cover changes. (* posts are in chronological order)
Urban Air Quality (AQI) Studies at a Local and Regional Level
Screen grab of AQICN’s Colombo page (based on US Embassy data on Tuesday 27 November 2018)
The issue of air quality has been in the news lately with the destructive Camp Fire in northern California and resulting air pollution in the San Francisco Bay area. Poor air quality is nothing new, of course, and has been a fixture of the less desirable side of urban development and agricultural practices. In our Asian neighborhood, cities like New Delhi and Beijing, have regularly been in the news for their frightening air pollution. South East Asia has faced serious problems from the clearing and burning of tropical forest for agricultural expansion (see the articles below by Adam Voiland). Colombo Sri Lanka, where I am based, has much less of a problem but there are development plans and changes that could contribute to an increase in poor air quality. The OSC IB Environmental Systems class is currently completing their internal assessment on air quality in topic 6 (Atmospheric Systems & Societies). This post considers and shares resources for monitoring air quality at a variety of scales that I have been exploring with the students. The goal is to document resources to understanding air quality measurements and work to reduce causes with interested readers, students and teachers.
MEASURING AQI
Many countries have been monitoring and reporting on air quality for some time.The Air Quality Index (AQI) is a measure used to measure and monitor the quality of air. However, there is not necessarily a common standard scale, even though most are called “AQI” (see Wikipedia’s page for a summary of the different AQIs). For example, India’s AQI is on a scale of 0-500 with eight different components measured (NAQI). The UK is on a scale of 0-10 with five major pollutants (UK AIR). China’s AQI measures six pollutants on a scale of 0-300. Thus, it has been difficult to compare values on a global scale.
For the purposes of our student work we have used the AQI established by the Environment Protection Agency (EPA) in the United States. It is based on measures of the following five pollutants.
- ground-level ozone (O3)
- particle pollution (particulate matter) (PM2 or PM10)
- carbon monoxide (CO)
- sulfur dioxide (SO2)
- nitrogen dioxide (NO2)
Each of the pollution segments has a standard, set by the EPA. This is used to evaluate the quality of the air based on the measurement. The scale of the AQI runs from 0-500 but, in reality many cities are off these charts and getting close to 1,000! For example, today (November 27th at 2:00 pm) Delhi has an AQI of 492 and several places in China in the Beijing area have an AQI of 999!
Screen grabs from India’s National AQI data portal (Chennai on 29 November 2018).
Screen grabs from India’s National AQI data portal (New Delhi on 29 November 2018).
US EMBASSY DATA
There are now online tools to help students, teachers and other interested citizens become more aware of the spatial extent of the problem using a single AQI measure. The US State Department is recording and sharing AQI data at their global network of embassies and consulates. AirNow (of the EPA) has a website where the current data from these embassies and consulates is layered on an OpenStreetMap. If you click on this link you can input a city with a US embassy/consulate and then access both current and historical data. Many places have yearly data, collected every hour going back to 2015! This is an ideal resource for science teachers looking to find meaningful secondary data for students to use in analysis.
Screen grab of Colombo data showing hourly progression (15 November 2018).
Screen grab from AIR NOW’s US Embassy portal showing AQI in Dhaka Bangladesh (29 November 2018).
Portal to the World Air Quality Index site.
You can also look up global data sets at the World Air Quality Index project’s site at www.aqicn.org . This site, based in China, compiles AQI data from around the world and maps it. Thus far, I have not been able to download historical data from the site. They do have several useful links including an Asian forecast page.
Unfortunately, we live in a world where many people are exposed to dangerously high levels of air pollution, as the links above share. It is hoped that the data and the knowledge of these patterns will help our communities look for meaningful changes in our daily lives such that we reduce and eliminate the cause of human induced air pollution.
Special thanks to students Camille-anh Goulet and Jordan Wright and OSC parent Michael Cragun for sharing links and ideas that have contributed to our understanding of AQI.
REFERENCES
Al Mukhtar, Sarah et al. “Hell on Earth” New York Times. 18 November 2018. Web.
Camp Fire Spreads Foul Air in California. NASA Earth Observatory. 11 November 2018. Web.
India National Air Quality Index Portal. Web.
US Environmental Protection Agency. Air Now. Data Portal. Web.
US Environmental Protection Agency. Air Now: US Embassies & Consulates. Data Portal. Web.
Voiland, Adam. “It’s Fire Season in South East Asia.” NASA Earth Observatory. 1 March 2018. Web.
Voiland, Adam. “Smoke Blankets Indonesia. NASA Earth Observatory. 27 September 2015. Web.
World Air Pollution: Real Time Air Quality Index Portal. Web.
Geospatial Teaching & Learning 2018
Geospatial Teaching & Learning website home page featuring a Landsat image of one of my favorites areas-the Sundarban. Processed by the author using raw NASA tiles in an ARCGIS environment. Click on the image to access the website and PDFs of presentation folders.
In February, the American School of Bombay held its regional technology conference and workshop ASB Unplugged. The three days of presentations, interactive sessions and discussions gave me a chance to observe and check in on a school well known for into innovative use of technology in the classroom. I participated in the event and was also presented my workshop entitled: Geospatial Teaching & Learning: Opportunities, Applications and Ideas for International Educators. The workshop offered an opportunity to review recent developments in the fields of Geographic Information Systems (GIS) & Remote Sensing (RS) with a special emphasis on potential applications for international school teachers. Geospatial fields continue to experience rapid changes as technology develops, data become cheaper and more assessable and software is easier to use. That is good news for educators interesting in incorporating geospatial applications in their classrooms.
There were several themes that were updated or new in this workshop:
- Story Telling With Maps: One of the most useful aspects of the workshop focuses on how interactive stories based on maps and imagery are a great way to highlight the cases studies that are central to the teaching of DP Geography. These can be viewed but can also be created by students and teachers as a means of developing knowledge about case studies that are not well publicized. ESRI’s Storymaps and Google’s Tour Builder are two excellent web based options.
- OpenStreetMap offers opportunities for students and teachers to get involved in mapping their own neighborhoods in a wiki-based global mapping project. Users can then access this spatial data and a vast treasure trove of vector data that has been contributed by users all over the world, as a part of a local-based research project.
- New Data Sources: I highlighted some of the emerging sources for spatial data. On the workshops companion site I have a long list of data options and surely there are numerous other sites that I have missed. These are global in outlook but there is a focus on South Asian geography issues. I shared the exciting emergency of Planet, a US-based company that has a constellation of 150+ micro satellites that are imaging the earth and providing daily data on almost all areas of the earth. I first read about the Planet Dove program in the March 2018 issue of National Geographic. The data that I downloaded during the 14-day trial period is impressive with four bands and 3m spatial resolution. I am using the data for projects that we have to map Colombo’s wetlands. You can acquire premium commercial Digital Globe imagery at 30-70cm cm spatial resolution but it is expensive and I have not yet been able to get educational discounts through our local provider. I am working on getting an evaluation sample but for the moment this will be out of reach for most school geography programs. You can browse recent Digital Globe imagery here and of course they provide much of the imagery that you see when you zoom in on Google Earth. The European Space Agency’s (ESA) Sentinel 2 satellites (through the Copernicus program) provides an excellent public service of earthy imagery that compliments what USGS and NASA have been providing. I find the best way to access Sentinel data is through the USGS’s EarthExplorer
- Field Data Gathering With Mobile Apps: The development of mobile data gathering platforms has been a significant boon for geography and science teachers looking to collect survey data and then to enhance it with locational information. The December post highlighted how we are using Survey 123 here at OSC.
- Mapping With Drones: Most international schools have drones as part of their maker spaces or technology departments. OSC has two that are beginning to be used, mainly for providing cool aerial perspectives of the campus and special events. I am working on using our drone to map the campus and other key study areas (wetlands, forest areas etc.). At the recently concluded GIS Users Conference I was impressed with a real-time demonstration by a Ministry of Defense R&D team to map a small area. I am working with the OSC tech team to get Drone Deploy (to pre-establish the flight path and order of images taken) and Drone2Map to create the orthomosaic or 3D model of the area.
PAST GIS BLOG POSTS
- GIS Developments at OSC in 2017 December 2017
- GIS Developments at OSC in 2015 January 2015.
- GIS Developments at OSC in 2014 November 2014
- Using Remote Sensing Imagery for Teaching & Learning in the IB August 2013
- GIS Developments at OSC in 2012 Development 2012
- GIS Developments at OSC in 2011 January 2012
- The Home & the World: GIS Developments at OSC in 2010 November 2010
- Using GIS in the OSC Geography Curriculum March 2010
GIS Developments at OSC in 2017
GIS as a tool for teaching and learning in the DP Geography program (the field, Survey Department and in a final Geography EE map).
November 15th marked GIS Day, a time set aside to recognize the important role of Geographical Information Systems (GIS) in our lives. With a theme of GIS as the “science of where” it seems like a good time to look at ways in which we are using GIS as a tool for teaching and learning at OSC. Ten years ago, I put in the first proposals to adopt a GIS program at OSC as a part of our MYP and DP Geography courses. Since then the school’s small program has grown steadily while there have also been enormous leaps in the technology. This post reviews the newer applications and data sources that I am using as a tool for geospatial teaching and learning in the OSC environment.
Curricular Links in the International Baccalaureate DP
As far as I know, there are no explicit requirements that GIS skills be taught in any IB course. There are references made to GIS in the revised DP Geography, First Examinations May 2019 syllabus though they are not required (unfortunately, from my perspective). On page 19 it says “it is recognized that the ability to use GIS as a tool is a valuable geographic skill that goes beyond many of those listed below. Where GIS is accessible and practical, its use is encouraged.” Of course, there are many geographic skills listed in the guide that can be taught using a GIS platform. The Environmental Systems & Societies, First Examinations 2017 syllabus in the Investigating Ecosystems (2.5) section mentions GIS as a tool to use when tracking land use change (see p. 38).
At OSC I take time to teach several basic GIS lessons in DP Geography that allows students to use it as a tool for case studies and work on the internal assessment. In the past, I have worked with MYP students to introduce them to skills and methods for using our ArcGIS software. This year we are once again introducing GIS skills for MY 5 so that they can map spatial patterns from their Galle socio-economic survey work.
Mobile Data Collection & Tracking
The advent of wide spread use of smartphones and improved 4G cellphone networks has opened up opportunities to use mobile data gathering apps on phones. There are a variety of options including open source apps (Open Data Kit, etc.). I am using ESRI’s Survey123 which comes with our ArcGIS site license. For the first time this year we recorded all of the DP Geography Sinharaja field surveys on Survey123. The class set up a common survey with questions about gender, housing, water access, land use and other variables. Before we went to the field we trialed a simpler version in Colombo. In the field, every student had a phone but we also backed it up with paper copies. At times, there was no cell phone access. We were able to upload the data later when we had cell phone connectivity (this worked quite well although photographs attached to the survey slowed down the uploads considerably). It was a much better way to tabulate the data (there were more than 70 individual respondents in total) and the class could map the data points since each had a spatial reference.
At the same time, I have been experimenting with using phone apps to track and record hikes and trails that we walk on CAS experiences. Strava, a fitness oriented app, offers an excellent way to record tracks. I am exporting GPX trails and then putting them onto Google my maps and sharing them with participants. I’ve taught students how to use them as a way to record key paths on their CAS blogs (see Maha’s Off the Grid post or my Mannar account for an example of this). We are currently using Google My Maps for this and layering the GPX trails onto a map that we make public. I would like to use an Openstreetmap for the base layer but this requires a WordPress plugin and $$$.
Hardware & Online Software
In terms of hardware we are operating a basic system with a server/desktop and then four lab desktops (each with decent specs-16 GB RAM, fast processors, graphics cards, large (2tb) drives and wide HD monitors. Geography students have access to ArcGIS Online on their laptops (both Apple OS and Windows platforms). When it comes to working with imagery I find it easier to use the desktops where I have spatial data stored for specific class assignments.
There are a variety of software options for using GIS as an educational tool. The most widely used open source GIS software package must surely be QGIS. It has an OSX version and the interface is quite similar to ArcGIS. At the school we continue to use the industry-standard, proprietary ArcGIS group of applications and have maintained an advanced license for over the last eight years through GIS Solutions here in Colombo. I am able to get technical advice from IWMI’s GIS lab when there are new operations or application that we want to put to test. I have also developed relationships with other major GIS users who are working on environmental issues in Sri Lanka.
Openstreet Map Contributions
In the last two years we have been using Openstreet Maps and have made minor contributions in our neighborhood and areas of interest. I value the idea of an open platform wiki space where users can contribute spatial knowledge. It is also an excellent source for downloading shapefiles of houses, building, roads, and other features in our Sri Lankan study areas. This data is often more update to shapefiles that are commercially available. We have had students download OSM data and then use the shape files to design studies of land use in the Colombo CBD (see attached image).
Recent OSC Student GIS work
Support from Local Contacts
OSC’s GIS initiatives continue to enjoy support for several key Colombo-based players. The International Water Management Institute’s (IWMI) GIS lab has been our main resource. They provide us with technical guidance and share public data that can be used for student learning. Their Water Data Portal is an important source of publically available spatial data.
Dr. Ajith Gunawadena at the Central Environment Authority’s Research and Development (GIS) unit has become a good friend. He has helped me understand the ways in which the CEA and other government agencies are using GIS to tackle a range of national challenges. He helped guide the production of district level spatial databases (resource profiles).
I have developed good relations at the Sri Lankan Forest Department. Their GIS unit is working on updating the forestry map of Sri Lanka (last completed in 2010) and I have had a chance to see how they are using remoted sensed imagery to inventory different types of forest cover. The best way to access their basic forest data is on the FAO-sponsored REDD+ National Forest Monitory System portal. At the invitation of Anura Sathurasinghe, several of our DP2 students and I participated in the recently held 27th Asia Pacific Forestry Commission meetings here in Colombo.
Colombo is now growing rapidly and this has given students an opportunity to study process of urbanization and urban environments first hand. The port city project, still controversial but speeding ahead, is moving at a rapid pace. While the Urban Development Authority used to be the key agency for getting urban data, the Western Region Megapolis Planning Project now seems to be the main agency with data and information about Colombo’s urban projects. Master plans are available on their website for download.
SL Survey Department Developments
The Sri Lankan Survey Department continues to be a remarkable government agency that supports geographic teaching and learning in the country. I have always appreciated their open view to public access to maps and spatial data. At the GIS Day 2017 event several of their team members spoke about developments at the SLSD. Sarath Jayatilaka and N. Wijeyanayake, traced the historical development of mapping at the department. Mr. Sivanantharajah bought the audience up to date with new developments in remote sensing including the use of lidar to generate highly accurate elevation models. The Survey Department is at work on a National Spatial Data Infrastructure (NSDI) platform but this is expected to be another six months or a year before it is unveiled to the public. Meanwhile some of their maps and data can be viewed on an interactive portal and their land information system. What would be nice is if Sri Lanka’s larger neighbors would be willing to learn from the island nation’s open approach to making spatial data and maps available to the public to improve overall geographic knowledge and understanding!
Accessing Population, Development, Environmental, Energy & Poverty Data
When addressing core concepts of the Geography and ES&S syllabi there are now an amazing variety of map-based data portals to access up-to-date statistical data.
- I have been using the Washington DC-based Population Reference Bureau data tables to study and analyze population patterns for nearly 20 years in my teaching and they now are accompanied by interactive map portal.
- World Resources is sponsoring a useful Data portal on deforestation called the Global Forest Watch. Their data is built on a Google Earth Engine
- World Bank data, a leading source of data on economic development and poverty, can be found on their data portal. DP1 students made an important discovery when they accessed the Interactive Bangladesh Map. We were able to download the GIS-ready data and then view and manipulate it in an ArcGIS environment. I understand that they will be doing similar sites for country and global data.
- For data on the Himalayan region ICMOD maintains the Mountain Geoportal.
- The Sri Lanka Census & Statistics department has always been a good source of data. They now have an interactive geoportal to access some of this data. It is layered on an Openstreet base map.
PAST GIS BLOG POSTS
- GIS Developments at OSC in 2015 January 2015.
- GIS Developments at OSC in 2014 November 2014
- Using Remote Sensing Imagery for Teaching & Learning in the IB August 2013
- GIS Developments at OSC in 2012 December 2012
- GIS Developments at OSC in 2011 January 2012
- The Home & the World: GIS Developments at OSC in 2010 November 2010
- Using GIS in the OSC Geography Curriculum March 2010
REFERENCES FOR GIS TEACHING & LEARNING (2017 Update)
Bolstad, Paul. GIS Fundamentals: A First Text on Geographic Information Systems, Fifth Edition. Acton, MA,Xanedu, 2016. Print. Web Resource Link, (GIS lessons).
Brown, Clint and Christian Harder Eds. The ArcGIS Imagery Book: New View. New Vision. Redlands, CA: ESRI Press. 2016. Print (Web version).
ESRI. Advancing STEM Education with GIS. Redlands, CA. 2012. Web.
ESRI. K-12 Education portal. Web.
Harder, Christian and Clint Brown, Eds. The ArcGIS Book, 2nd Edition. Redlands, CA: ESRI Press. 2017. Web. PDF.
Jensen, John R. Introductory Digital Image Processing: A Remote Sensing Perspective, 4th Edition. Glenview, IL: Pearson GIS, 2016. Print.
Keranen, Kathyrn & Lyn Malone. Instructional Guide for the ArcGIS Book. Redlands, CA: ESRI Press, 2016. Print (Web version).
Kimerling, A. Jon. et al. Map Use, Eighth Edition. Redlands, ESRI Press, 2016. Print. Web Link. Review by Daniel G. Cole.
O’ Connor, Peter. GIS for A-level geography. Geographical Association/ESRI, 2008. Print.
Sri Lanka’s Central Highlands WWW Experience 2017
Afternoon composite view of Sri Pada from Horton Plains National Park.
Last week during the surprising, but welcome, return of monsoon conditions OSC’s secondary school set out across our island home to experience Sri Lanka as part of the annual Week Without Walls program. Students and teachers spent the week learning in unconventional classrooms that emphasized Sri Lankan culture, history and ecology as well as service and outdoor education. I had the privilege of leading a modest-sized group of MYP5/DP1 travelers on a circuitous tour of the Central Highlands. The learning focus of this “microtrip” was on photo documentation to better understand the ecology and landscape of Sri Lanka’s mountainous interior.
Montane forest canopy at @ 1,300 meters near to Belihuloya.
Pied Thrush (Geokichla wardii) a rare winter visitor to Sri Lanka. Photographed at Nuwara Eliya’s Victoria Park feeding on a tree () that is also found in the Western Ghats.
This is the third year that I have led the Highlands WWW experience. Once again we had a group of enthusiastic students who didn’t’ mind getting up early or living in somewhat primitive conditions while we were on the adventure. We spent the first night in tents at Belhihuloya followed by two nights in a basic dormitory on the Horton Plains plateau. Our final night was spent in comfort in Nuwara Eliya where students and teachers were able to clean up, use their phones, eat well and then participate in several frog and bird outings. A wet snap caused by a low-pressure system in the Bay of Bengal gave us rain (and precious little sunlight) on almost every day. We were able to do almost all the walks but were not able to hike to Kirigalpotta because of wet and windy conditions. I used the extra time to go deeper into the ecology of HPNP and teach photographic skills to the group. All the students brought functioning cameras and they were able to experiment with composition, lighting and photographing lizards, birds and moving water. Joshua, an MYP5 student, got several impressive night shots during a rare clearing of the night skies above Mahaeliya bungalow in HPNP.
From a biodiversity spotting point of view we did well. This year we saw and photographed both the Rhino Horned Lizard (Ceratophora stoddartii) and Pygmy (Cophotis ceylanica) in HPNP. While in Nuwara Eliya we did the wonderful frog walk with Ishanda Senevirathna. Aside from some of the usual endemic species we spotted the Nest Frog (Pseudophillauts femoralis) that we had not seen last year. Bird-wise the whole group got to see the rare winter visiting Pied Thrush (Geokichla wardii) in Nuwara Eliya’s Vitoria Park. At HPNP we saw the Dull Blue Flycatcher (Eumyias sordida), SL Whiteeye (Zosterops ceylonensis), SL Wood Pigeon (Columba torringtoniae), plenty of Yellow Eared Bulbuls (Pycnonotus penicillatus) and several other species. On a damp, misty hike up Totupola Kanda (Sri Lanka’s 3rd highest peak at 2,360 m), we came across at least three different piles of leopard scat and observed scratch marks on tree bark!
One of the new developments this year was to use a drone to better view some of the areas that we were visiting. There were rules against using it in HPNP but we were able to do an excellent series of flights over forest near Lanka Ella falls. The Phantom 3 recorded some amazing scenes of the forest canopy with a new flush of leaves. DP1 student Anaath Jacob did the piloting while I directed the forest sequences. I am now learning how to pilot the drone and look forward to better understanding forest landscapes using this important new tool.
Up close and personal to a female sambar (Rusa unicolor) deer in Horton Plains. They have become habituated to people thanks to the propensity of visitors feeding them (against park regulations).
Endemic cloud forest lizaed species from Sri Lanka’s Central Highlands. Left (& possibly center): the Pygmy lizard (Cophotis ceylanica). Right: the Rhino Horned Lizard (Ceratophora stoddartii).
Cloud forest on Pidurutalagala (Sri Lanka’s highest peak) .
Pseudophillauts femoralis, a rare endemic shrub frog from Sri Lanka’s cloud forest. Identification courtesy of Ishanda Senevirathna of St. Andrew’s.
More diversity from the Highlands WW: Montane Hourglass Frog (Taruga eques), fungi (Phallus indusiatus) at Belihuloya and the endemic Yellow Eared Bulbul (Pycnonotus penicillatus) in Nuwara Eliya.
2017 WWW group at (Left) Baker’s falls in Horton Plains and (right) on the 2nd day on the way to Lanka Ella falls.
2017 Sri Lanka Highlands WWW group photographed at the strange telephone booth in Horton Plains National Park. Note the dry grass-a result of a severe drought and failed North East Monsoon in the months prior to our arrival.
PAST WWW TRIPS
- WWW 2013 Sinharaja
- WWW 2014 Dry Zone
- WWW 2015 Sri Lanka Highlands
- WWW 2016 Sri Lanka Highlands
FURTHER READING & REFERENCES
Critical Ecosystem Partnership Fund (CEPF). Western Ghats and Sri Lanka Biodiversity Hotspot. May 2007. Web.
De Silva, Anslem. The Diversity of Horton Plains National Park. Colombo: Vijitha Yapa Publications, 2007. Print.
Pethiyagoda, Rohan. Horton Plains: Sri Lanka’s Cloud Forest National Park. Colombo: WHT, 2013. Print.
Rodrigo, Malaka. “Lanka’s central highlands win heritage battle”. The Sunday Times. 8 August 2010. Web.
Werner, Wolfgang. Sri Lanka’s Magnificent Cloud Forests. Colombo: Wildlife Heritage Trust, 2001. Print.
Learning in Sri Lanka’s Central Highlands (Part 2): Understanding Ecology through Biodiversity
Male dull green shrub frog (Pseudophilautus viridis) in cloud forest above Nuwara Eliya.
Sri Lanka’s Central Highlands have been recognized for their significant biodiversity. The area is a UNESCO-designated World Heritage Site yet (adopted in 2010) and there is a growing awareness about its unique flora and fauna. The Highlands are composed of the mountainous region at the heart of the southern island and include significant areas such as Peak Wilderness, Horton Plains National Park, the Pidurutalagala forests, the Knuckles protected area and several smaller tracts of forest. Most of the Central Highlands have largely been cleared of original vegetation in support of the plantation (mainly tea) industry. This happened during the 19th and early 20th centuries during colonial rule though recent decades have seen loss of forest to hydroelectric dams, plantations expansion and other human land uses. Today the remaining protected areas may be a small percentage of the total area, but they are well protected and offer the opportunity to experience some of Sri Lanka’s unique biodiversity.
Collage of low res snapshots taken of life forms and waste on the trail to Sri Pada during the DP1 ES&S field study there in December 2015.
The elusive Pied Thrush (Geokichla wardii), one of the most difficult birds to see in Sri Lanka. Male above and female in the inset image. Spotted at Nuwara Eliya’s Victoria Park during the Week Without Walls with the expert guidance of Ishanda Senevirathna, the naturalist at Jetwings’ St. Andrew’s Hotel.
Calotes nigrilabris, the black-lipped lizard, basking in the sun just off the precipitous slope of Kirglpotta’s summit. This agamid (dragon) species is endemic to the Central Highlands of Sri Lanka.
A study of Pseudophillauts viridis, a rare endemic shrub frog from Sri Lanka’s cloud forest. All females except the bright green male in the upper right. Identification courtesy of Ishanda Senevirathna of St. Andrew’s. Kamilla found the male that is photographed here and the MYP5 students helped with holding lights.
Several different shrub frogs including Pseudophillauts schmarda and others (to be updated shortly) from the Nuwara Eliya nocturnal frog walk.
The Rhino Horned Lizard (Ceratophora stoddartii), an endemic cloud forest species from Sri Lanka’s Central Highlands. This female (top image) and male (middle and lower image) were photographed in Horton Plains National Park where their populations are stable, though not always easily seen.
PAST WWW TRIPS
- WWW 2013 Sinharaja
- WWW 2014 Dry Zone
- WWW 2015 Sri Lanka Highlands
PAST SRI PADA STUDIES
- OSC Class of 2010 (Sri Pada 2008 trip)
- OSC Class of 2011 (Sri Pada 2009 trip)
- OSC Class of 2012 (Sri Pada 2010 trip)
- OSC Class of 2013 (Sri Pada 2011 trip)
- OSC Class of 2014 (Sri Pada 2012trip)
- OSC Class of 2015 (Sri Pada 2013 trip)
- OSC Class of 2016 (Sri Pada 2014 trip)
FURTHER READING & REFERENCES
Critical Ecosystem Partnership Fund (CEPF). Western Ghats and Sri Lanka Biodiversity Hotspot. May 2007. Web.
Pethiyagoda, Rohan. Horton Plains: Sri Lanka’s Cloud Forest National Park. Colombo: WHT, 2013. Print.
Rodrigo, Malaka. “Lanka’s central highlands win heritage battle”. The Sunday Times. 8 August 2010. Web.
Werner, Wolfgang. Sri Lanka’s Magnificent Cloud Forests. Colombo: Wildlife Heritage Trust, 2001. Print.
Class of 2017 stopping at the clearing on their way up to the summit of Sri Pada. We had clear views of the peak and surrounding forest all the way up to the temple at the summit. Back row: Carolyn, Brittany, Ahnaf, Sanoj, Shenali & Erika. Front row: Ian, Ariana and Jamaal. Photograph by Abbi Pilapitiya.
Pigeon Island Explorations
Underwater snapshots of branch and soft coral in waters near Pigeon Island.
My son Lenny and I had a chance to explore Pigeon Island National Park on Sri Lanka’s north-east coast just before the school year started. For Lenny this was an informal extension of his IB PYP 5 exhibition project where he studied the ecology and conservation of marine turtles in Sri Lanka. The visit to Pigeon Island on Sri Lanka’s north-east coast near Trincomalee was a brief, lightening trip enabled by overnight train travel. July and August is high season for (mainly European) visitors on the east coast and we were challenged to find a place to stay. However, that was not so much a problem given that we spent as much time on the island and underwater as possible.
Significant coral gardens still survive around Pigeon Island in spite of growing numbers of tourists that visit (as many as 500 on the first morning that we were there). It is an ideal location for both diving and snorkeling (which we like because of the simplicity and lack of complicated gear- we hope to get our PADI licenses later this year). Overall the national park is well managed and we were lucky to do an initial snorkel session with one of the park guards, who was knowledgeable and helped us better understand where to see fish and coral. There is significant pressure on the island, mainly from the sheer numbers of visitors. Damage to shallow coral by careless visitors and small bits of food which attract crows were two obvious issues. Highlights for us included a dozen or so sightings of Black Tipped Reef Sharks (Carcharhinus melanopterus), green turtles (Chelonia mydas), and numerous reef fish. The pictures here were taken with a basic underwater camera.
OSC PYP5 students Lenny and Tristan study the conservation of Sri Lanka’s marine turtles for their culminating IB Exhibition project. In this initial part of the study they visited Hikkaduwa National Park (HNP) and the Kosgoda turtle hatchery. At HNP they had a close and intimate encounter with Rosy the Green Turtle…a great way to embark on a project of inquiry-based exploratory learning!
Google Earth view of Pigeon Island in 2015
Fish diversity (and Lenny) at Pigeon Island, including anemone-fish (Amphiprion sabae) fish and a black tipped reef shark (Carcharhinus melanopterus).
Varieties of coral, much of it bleached, but otherwise undisturbed near Pigeon Island. The parasitic “crown of thorns” starfish in the center. Green turtle over coral in the bottom left.
Snapshots from Tincomalee’s KoneswaramTemple (Swami Rock) a fascinating place that I have childhood memories of.
FURTHER READING
IUCN. Reefs: A resource book for secondary school students. Colombo: IUCN Sri Lanka, 2003 . Print.
Jayawardena, Dharshana. Dive Sri Lanka. Web.
Perera, Nishan. Coral reefs of Sri Lanka. Colombo: The National Trust of Sri Lanka, 2011. Print.
Taking The Plunge in the IB Diploma
OSC’s Class of 2015 IB Orientation…a collage of activities
“I have always thirsted for knowledge, I have always been full of questions.”
― Hermann Hesse, Siddhartha
Every August in the midst of the South West Monsoon new batches of students enter OSC’s IB Diploma Program. We are a relatively small school and usually have cohorts around 30-35 students from a dozen or more countries. For the next 18 months these young women and men will undertake a series of academic, extra-curricular and personal challenges. There are significant peaks and troughs and the exercise culminates in rigorous exams that are assessed alongside thousands of other students worldwide. In addition to six subjects divided between three higher level and three standard levels subjects, they write an extended essay, participate in the Theory of Knowledge class and take part in the Creativity Action and Service (CAS) program. For many the goal is university entrance but there are basic skills in being a human being in an increasingly interconnected, sometimes perplexing world that are just as important. It is a daunting challenge for even the most organized, brightest and/or hardest working individuals and yet our students do amazingly well. In order to prepare them for this exceptional learning experience, we conduct an orientation program that emphasizes team building, leadership and experiential education using the outdoors. The program is facilitated by Borderlands Sri Lanka at their Kitulgala base camp. The idea is to give OSC’s students a sense of the DP, highlight a few keys components and help them to take the plunge both metaphorically and in the flesh!
Much of the program involves physical challenges set in the wet, densely forested Kelani River valley. The river, originating on the slopes of Sri Pada, runs through the small town of Kitulgala located about 100 km due east of Colombo. Water and the river play a key role as students and teachers raft and canyon their way into the camp on the first day. The team at Borderlands has an impeccable safety record and time is taken to emphasize safety in the different spheres of the challenge. Some of the students have been here on past school trips or with their parents but a few came with limited swimming skills and were nervous about the challenge. We rafted through a series of rapids, took time to play in the river and then made our way through a gorge (“the Canyon”). By the end of the first day the team was exhausted, but exhilarated from the river and canyon. We took time to reflect on the day both as a group and individually. This is where CAS came in and the four step learning cycle (plan, act, observe, reflect) was emphasized.
OSC’s Class of 2015 Rafting the Kelani River.
Abseiling in heavy afternoon rain. Borderlands instructors Mahesh and Nirmal guiding OSC students over the edge.
Learning to think about knowledge in Belilena Cave.
The Theory of Knowledge component of the orientation program is set in the historical Belilena Cave located amongst rubber plantations above Kitulgala. This is a significant Sri Lankan archeological site and is thought to be one of the oldest locations showing evidence of early Homo sapiens in all of South Asia (estimates range from 12,000 to 30,000 years before present)! The setting is sublime to say the least and the echoes of Plato’s Allegory of the Cave ring loud in this setting (a link pointed out by OSC’s mathematics HOD and philosophy junkie last year). The students were invited to think about knowledge and test their senses as they grappled with a series of cognitive challenges. In the second part of the afternoon the tasks were much more physical and the class hiked up to a 100 meter waterfall to be tested in a slippery abseil in an intense downpour. The sense of accomplishment and elation at the end of this was palatable.
Waterfall on Belilena Cave with OSC students exploring the meaning of knowledge on a monsoon soaked day (taken on IB Orientation 2012).
Top of “the Canyon”…taking the plunge.
Making our way through “the Canyon”…following the stream over a series of falls and through pools and gorges (note the Impatiens sp. on the wall!).
Lower canyon…almost finished.
On our final day we explored ideas of community in the changing landscape. Students broke into small teams to meet a cross section of local inhabitants and talk to them about their memories, experiences and dreams of the river. This is a new initiative and will hopefully lay the ground work for follow up work when subsequent OSC classes return here. We returned to Colombo exhausted, slightly bloodied by leeches but exhilarated by the experiences of taking the plunge into the IB Diploma Program.
OSC’s Class of 2015 and a few of their teachers at a break while rafting down the Kelani River on Day 1
