ICIMOD research stations damaged by Nepal Earthquake 2015

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Langtang Valley with AWS, HS, and Pluvio station locations (Google Earth)

Langtang Valley has been the focus of intense glaciological, meteorological, and hydrological fieldwork over the past four years as part of the Norwegian-supported cryosphere monitoring project.  Twelve meteorological and hydrological stations installed across Langtang valley have been pivotal in training regional and international post-graduate students through research conducted in ICIMOD’s Cryosphere Initiative. These stations collect important meteorological (air temperature, wind speed, solar radiation, precipitation) and hydrological (water level) data that have been used in a number of high-impact publications.  

Automatic Weather station at Yala Base Camp after securing with climbing rope

The stations were substantially damaged by the 7.8 magnitude earth quake that hit Nepal on 25 April 2015. A four member survey team led by Joseph Shea (Glacier Hydrologist, ICIMOD), Patrick Wagnon (Visiting scientist, ICIMOD/IRD), Gyalbu Tamang (Kyanging), and Djornay Lama (Langtang) visited the stations sites in Langtang to assess the damage in June 2015, two months after the quake. Five meteorological stations were destroyed by air blasts from avalanches in the valley, one was toppled by the earthquake, and one station was completely buried by the high snowpack.  One hydrological station was damaged by the air blast that hit Kyanging Gompa. 

East ridge of Langtang-Lirung, with suspected source of avalanche and air blast that affected Lirung Glacier and Kyanging

A team of ICIMOD researchers visited the valley in October 2015 to repair the main stations at Kyanging and Yala Base Camp, and carried out maintenance on the rest of the stations. 

Summary of Langtang Valley station damages

Station Damages
AWS-Kyanging Tower, CNR4, anemometer, Jennoptik, Pluvio
AWS-Lirung (ETH) Everything; datalogger returned to KTM
AWS-Yala Base Camp Tower, Pluvio base and windscreen; CNR4 still malfunctioning due to AEM
AWS-Yala Glacier

Anemometer, other components unknown; no data retrieved

AWS-Langtang (ETH) Incoming solar radiation
Pluvio-Yala Everything - datalogger returned to KTM and data retrieved
Pluvio-Ganga La Frame, Pluvio, SR50, 1/2 solar panels, anemometer
Pluvio-Morimoto None
Pluvio-Langshisha Unknown
HS-Lirung Station pole and fencing bent, sensor ok
HS-Kyanging RTS installation unsatisfactory
HS-Langshisha None