Meteorological analysis from High altitude stations in the Everest Region
Abstract
This study presents a high-altitude meteorological analysis of five automatic weather stations (AWS) in the Everest Region, Nepal. The stations are operating in the region since November 2013 to till date in Mera and Changri Nup glaciers ranging in elevation from 4200 to 6400 m asl. Some stations are in the glacier and some are near the glacier measures air temperature, wind speed and direction, air pressure, change in surface height of snow, incoming shortwave and long wave radiation, outgoing shortwave and long wave radiation. Annual, seasonal, monthly and diurnal variation along with altitudinal gradient of all observed meteorological parameters are compared between the sites. Preliminary results show the distinct cycle of meteorological parameter from station to station in all time scales. There is strong influence of solar radiation on diurnal cycle of temperature and vapour pressure as well as fluctuation in seasonal temperature. The diurnal variation of observed vertical temperature gradients in all season and years highlights the importance of in situ measurements for melt modelling. Similarly, local topography and local scale circulations also affect wind speed and precipitation cycle. The onset and withdraw of monsoon were clearly seen every year at each station.
Kew words; high-altitude, radiation, glacier- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2018
- Bibcode:
- 2018AGUFMGC43K1683K
- Keywords:
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- 1616 Climate variability;
- GLOBAL CHANGEDE: 1621 Cryospheric change;
- GLOBAL CHANGEDE: 1631 Land/atmosphere interactions;
- GLOBAL CHANGEDE: 1655 Water cycles;
- GLOBAL CHANGE