Back to news
17 Nov 2015 | News

Reviving the Science in Langtang Valley

2 mins Read

70% Complete

 

A small team of ICIMOD researchers recently returned to earthquake-ravaged Langtang Valley to rebuild and maintain the network of hydrological and meteorological stations that was partly destroyed by the 25 April Gorkha tremors. As the lower portion of the trail was destroyed by landslides and rockfall, the new ‘high-route’ to Langtang took the team from Syabrubensi up to Sherpagaon, and then back on to the main trail at Rimche.

From Rimche to the main upper village of Kyanging Gompa, the Langtang Valley was essentially deserted. The roar of the Langtang Khola was interrupted only by our heavy breathing as we climbed past tea-houses and hotels damaged by the earthquake and rockfalls. At Ghodatabela, 4 km downvalley from Langtang Village, we saw first evidence of the magnitude of earthquake destruction on the opposite valley walls. Here, mature forest was stripped and toppled by the massive air blast that preceded the ice, snow, and debris avalanches (http://mountainhydrology.org/nepal-quake/landsat-8-reveals-extent-of-earthquake-disaster-in-langtang-valley/.

Continuing upvalley, the devastation became more apparent. Twisted sheets of tin roofing and lumber were scattered across the landscape. At the former site of Langtang Village, the 9 May 2015 rockfall masked all previous signs of human habitation with a thick debris-layer, though the earthquake-related avalanches had stripped houses to its bones and thus left little to cover. A few prayer flags fluttered in the valley breeze, and the waterfall-fed river that used to power a small hydroelectric plant still flowed into the debris. We raised some prayer flags of our own, and remembered those who lost their lives in the earthquake and its aftermath.

The team continued upvalley, and we spent 10 days to repair broken weather stations, replace broken sensors and solar panels, and conduct surveys of surface height change of the debris-covered Langtang and Lirung glaciers with an unmanned aerial vehicle (UAV). We scrambled along moraines to visit and maintain precipitation stations at 4,500m above Langshisha Kharka and Morimoto Basecamp, stood in the near-freezing waters of Langshisha Karka to measure water flows, and spent two nights at the base Yala Glacier (5,100 m), where the absence of recent snow cover indicated a very warm monsoon season. Having revived the weather stations will provide data to understand patters of temperature and precipitation changes and how this influences glacial melt in the valley. Though the valley and its inhabitants are still reeling from the earthquake, Langtang Valley remains as impressive and awe-inspiring as it ever was. ICIMOD will continue to support the people of Langtang through ongoing scientific research and outreach.

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at webmaster@icimod.org to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.

Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.

Stay current

Stay up to date on what’s happening around the HKH with our most recent publications and find out how you can help by subscribing to our mailing list.

Sign Up

Related Contents

Continue exploring this topic

14 Oct 2016 News
Better Business Practices in Surkhet

Twenty-five participants took part in ‘Entrepreneurship and Business Planning Training’ training in Surkhet 17-21 September 2016 as a capacity development ...

11 Dec 2017 News
Winners of ICT for Mountain Development Award 2017

While celebrating International Mountain Day on 11 December 2017, ICIMOD announced the four winners of this year’s ICT for Mountain ...

6 Jul 2015 News
Convergence in the understanding of water challenges crucial, say experts

The special session on ‘Water and Mountains’ convened by the International Centre for Integrated Mountain Development (ICIMOD) and theHimalayan Adaptation, ...

28 May 2015 News
Below normal rainfall most likely in South Asia this year, say experts

This year the South Asian Climate Outlook Forum (SASCOF) has predicted that below normal rainfall is most likely ...

Bucking the trend: Glaciers in Astore Basin have remained stable in recent times

Ground-based research results showed much lesser mass loss compared with that detected through remote sensing, with remarkably low uncertainty. The ...

12 Mar 2015 News
Second Workshop on HKH Monitoring and Assessment Programme (HIMAP)

More than 20 experts, social scientists, senior officials from various organizations, development practitioners and ...

21 Jun 2017 Atmosphere Initiative
ICIMOD Supports National Action Plan for SLCPs Mitigation in Nepal

As the issue if SLCPs is a recent one, Nepal does not have policies that specifically address it. The Atmosphere ...

17 Nov 2015 News
SAARC Business Arm Partners with ICIMOD on Climate Change

  The South Asian Association for Regional Cooperation Chambers of Commerce and Industry (SAARC CCI) and the International Centre for Integrated Mountain Development ...