{"id":34487,"date":"2019-12-09T10:58:58","date_gmt":"2019-12-09T15:58:58","guid":{"rendered":"https:\/\/college.unc.edu\/?p=34487"},"modified":"2024-07-02T17:13:45","modified_gmt":"2024-07-02T17:13:45","slug":"new-revelations-in-nepal","status":"publish","type":"post","link":"https:\/\/collegearchive.unc.edu\/?p=34487","title":{"rendered":"New revelations in Nepal"},"content":{"rendered":"

\"The
The Carolina research group with their guides celebrating the Nepali national holiday, Dashain, on the second day of the trek. (The red mark on their foreheads, tika, is a blessing ritual). From left, Harvey Seim, Lauren Leve, Rich McLaughlin, guide Deep Rai, Roberto Camassa, Emily Eidam and guide Daman Rai. (photo courtesy of Emily Eidam).<\/figcaption><\/figure>
\n
\"The
The researchers working on lake 5, a new lake they explored during the return trip. (photo by Roberto Camassa)<\/figcaption><\/figure><\/p>\n

An interdisciplinary team of Carolina researchers recently returned to the Himalayas to continue studying the effects of climate change on Buddhist holy lakes. A major goal: To retrieve data from instruments they installed 15 months ago. <\/em><\/p>\n

Editor\u2019s note<\/u><\/em>: Read about the scholars\u2019 first trip in a 2018 story, \u201c<\/em>Science, Spirituality and Synergy in Nepal<\/em><\/a>.\u201d<\/em><\/p>\n

Windy. Cold. Wet. Those were the conditions one October day as a team of Carolina researchers tried to retrieve instruments left behind 15 months earlier in a remote lake in Sagarmatha National Park, the region of Nepal dominated by Mount Everest. The thermistors were supposed to measure lake temperature and pressure at different depths every 15 minutes, for more than a year, but whether they had survived monsoons and freezing temperatures was an unknown.<\/p>\n

Day one was not a success. The afternoon winds were too strong.<\/p>\n

Climate change is impacting the Gokyo Lakes (there are six in total) \u2014 and these holy lakes are very important to Himalayan Buddhists. They lie next to the Ngozumba glacier, the largest glacier in Nepal. The team of interdisciplinary explorers who made the first trip to study the lakes included mathematics professor and chair Rich McLaughlin, Kenan Distinguished Professor of Mathematics Roberto Camassa, associate professor of religious studies and anthropologist Lauren Leve and marine sciences professor and chair Harvey Seim. Joining the same crew for the return trip was new team member Emily Eidam, an assistant professor and marine geologist.<\/p>\n

\"Looking
Looking down the Lukla airport runway, which slopes downward at 20 degrees and is the starting point for the trek. (photo by Roberto Camassa)<\/figcaption><\/figure>\n

Seim, who was battling an intestinal illness, had guided Eidam, Camassa and McLaughlin on locating the instruments on lake 4, relying on notes and GPS coordinates from when they were first deployed. But it turned out it would take multiple tries.<\/p>\n

Day two dawned clear and calm, but the winds began to pick up in the 15 minutes it took to load the boat. This time Camassa and Eidam, joined by porters who also acted as paddlers and pullers, managed to snag the line 50 meters below with a grapple hook and pull up all 15 thermistors (and three very heavy bags of rocks that helped to anchor the instruments). The haul was, in McLaughlin\u2019s words, a \u201cbeautiful data set that shows over a year\u2019s time what has been happening in the lake.\u201d<\/p>\n

\u201cGetting more than a year of data at multiple elevations in a remote lake is the type of thing that makes science extremely rewarding, both from a logistical perspective and what we\u2019re learning about seasonal lake dynamics,\u201d Eidam said.<\/p>\n

After collecting the data, the team redeployed all 15 thermistors. They will leave them there for about two years.<\/p>\n

\u201cWe recognize that studying just one season doesn\u2019t necessarily give the complete picture,\u201d Eidam added. \u201cSo being able to redeploy them means that we have a chance to do a much more comprehensive study of how the lake responds to changing snow and meltwater inputs, variable air temperatures, etc.\u201d<\/p>\n

The team also measured the depth of lake 4 again. A Kathmandu University colleague had measured its depth at 62 meters in 2009; the Carolina crew measured it at 45 meters in spring 2018. It rose to 57 meters in fall 2019, likely due to monsoon rain and the fact that the lake does not have an outflow river source, McLaughlin said. It undergoes cycles of draining and filling.<\/p>\n

\"Signs
Signs point the way to the Gokyo Lakes. (photo by Emily Eidam)<\/figcaption><\/figure>\n

The mathematicians will be working on modeling what\u2019s happening with the depth fluctuations.<\/p>\n

\u201cWe\u2019d love to create a permanent way to keep measuring these lakes,\u201d McLaughlin said. \u201cOur feeling is these are critical lakes for assessing climate change and it\u2019s happening here faster than in other parts of the world.\u201d<\/p>\n

Challenges and opportunities<\/strong><\/p>\n

A required permit that didn\u2019t come through until the last minute. Possible food poisoning. A broken tooth. Garbled data and a faulty piece of equipment. Spotty communication access. A longer-than-normal monsoon season. Surviving below-freezing night-time temperatures. A yak stampede. Hours of backed-up traffic at Ramechhap Airport for the journey to Lukla. (It\u2019s about a six-day hike from Lukla to the lakes).<\/p>\n

Welcome to the world of the field scientist.<\/p>\n

Despite the expedition challenges, Leve, who is an expert on Himalayan Buddhism and has been traveling to Nepal for nearly 30 years, said she thought the journey went smoother the second time.<\/p>\n

\u201cIn my experience with the way things work in Nepal, I expect not to have complete control,\u201d she said. \u201cAnd our communication with the local community far exceeded my expectations this time.\u201d<\/p>\n

\"Lake
Lake 3, early morning. (photo by Roberto Camassa)<\/figcaption><\/figure>\n

\u201cI was pleasantly surprised to get as much done as we did,\u201d Seim added, noting that Eidam was a brilliant addition to the group.<\/p>\n

\u201cEmily\u2019s expertise aligned nicely with what we were interested in doing; she is much more familiar with glaciology and geology so she added another strength to our interdisciplinary team,\u201d Seim said. \u201cShe brought some lightweight sensors with her that we didn\u2019t have last time that measured turbidity (cloudiness of the water) and chlorophyll.\u201d<\/p>\n

Eidam added that she benefited from working with seasoned scientists.<\/p>\n

\u201cWorking with mathematicians and physicists helps me expand my way of thinking about fluid motions, in an out-of-the-box way for a geologist. And teaming up with experienced faculty, including an expert on cultural matters in Nepal, is always educational for navigating field studies in international locations,\u201d she said.<\/p>\n

The team continued their earlier research on lakes 2, 3 and 4. They had a new opportunity to explore lake 5, even though the instrument they were using on the new lake bungled the data.<\/p>\n

\u201cLake 5 had not been studied that much,\u201d Camassa said. \u201cThe quality of the water there was also moderately different than the murky color of lake 4; it was much more transparent and blue like lake 3.\u201d<\/p>\n

\"Seim
Seim and McLaughlin examining lake depth data. (photo by Emily Eidam)<\/figcaption><\/figure>\n

The team also collected water samples from the lakes that will be analyzed for isotope concentrations to try to determine the source of water to the lakes \u2014 is it primarily surface water or groundwater?<\/p>\n

In addition, Camassa and McLaughlin made connections with scientists who work at The Pyramid International Laboratory\/Observatory, a research station in the Khumbu Valley, which could prove useful in gathering weather and atmospheric data to correlate with the lake water data.<\/p>\n

And sometimes, despite the obstacles, you just have to stop and enjoy the beauty of Nepal.<\/p>\n

\u201cOne night the stars were magnificent and the view of the Milky Way was incredible,\u201d McLaughlin said.<\/p>\n

Communicating science, developing best practices<\/strong><\/p>\n

\"Leve
Leve meets with municipal officials in Namche Bazaar. (photo courtesy of Lauren Leve)<\/figcaption><\/figure>\n

For Leve, one of her key goals has been to work with community leaders and the national park service in Nepal to help them develop helpful information for future researchers \u2014 and to find a way to share the scientific data the Carolina team is collecting.<\/p>\n

Before heading to Gokyo, the team members gave a presentation in Namche Bazaar that was attended by key stakeholders \u2014 from government, nonprofits, the national park and more. They shared details about the first trip and fielded questions. Leve then stayed behind for a few days to attend a meeting with local elected representatives. She is working with the parties to develop a best practices guide for scientists seeking to do research in the national park.<\/p>\n

\u201cWhile various parties may have conflicting ideas about how to best show respect for an environment that is locally perceived as living and sacred, in the end we are all invested in understanding this land that means many different things to different individuals,\u201d she said. \u201cWe share the same concerns about what it means to protect this world. We have to figure out how to do it together.\u201d<\/p>\n

\"Lake
Lake 3 and prayer flags; the flags indicate the sacred nature of the lake. (photo by Lauren Leve)<\/figcaption><\/figure>\n

After returning home, Leve led a panel at the American Anthropological Association conference in Vancouver, presenting on \u201cClimate Contradictions: Sacred\/Sentient Mountains, Science and the Anthropocene in the Andes and the Himalayas.\u201d<\/p>\n

What the Nepali people want is a partnership with future researchers, an opportunity to be a part of the conversation, Leve said.<\/p>\n

\u201cUNC is modeling best practices, but it\u2019s a work in progress; this is just the beginning,\u201d she said. \u201cThey have a great interest in seeing science happen and in building these collaborative relationships. At a certain point it will be in their hands entirely, and that\u2019s the goal.\u201d<\/p>\n

Philanthropic support from Cosby George \u201983 and the College of Arts & Sciences helped to fund the return research expedition. <\/em><\/p>\n

By Kim Spurr, College of Arts & Sciences
\n<\/em><\/p>\n

 <\/p>\n

More photos from the trip. (by Roberto Camassa and Emily Eidam)<\/strong><\/p>\n\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

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