A5082938865- Cryospheric studies and observations
- Climate variability and models
- Precipitation Measurement and Analysis
- Meteorological Phenomena and Simulations
- Climate change and permafrost
- Winter Sports Injuries and Performance
- Arctic and Antarctic ice dynamics
- Landslides and related hazards
- High Altitude and Hypoxia
- Geophysics and Gravity Measurements
- Adventure Sports and Sensation Seeking
- Soil Moisture and Remote Sensing
- Aerospace Engineering and Energy Systems
- Flood Risk Assessment and Management
- Hydrology and Drought Analysis
- Plant Water Relations and Carbon Dynamics
- Remote Sensing and Land Use
- Geology and Paleoclimatology Research
- Child Nutrition and Water Access
- Ecology and Vegetation Dynamics Studies
- Surgical Sutures and Adhesives
- Polar Research and Ecology
- Urban Heat Island Mitigation
- Climate change impacts on agriculture
- Plant-Microbe Interactions and Immunity
Tribhuvan University
2018-2025
Chitwan Medical College
2023
B.P. Koirala Institute of Health Sciences
2006-2018
Nepal Agricultural Research Council
2017
Nepal Academy of Science and Technology
2015-2016
Nagoya University
2012
Abstract. Approximately 25 % of the glacierized area in Everest region is covered by debris, yet surface mass balance debris-covered portions these glaciers has not been measured directly. In this study, ground-based measurements elevation and ice depth are combined with terrestrial photogrammetry, unmanned aerial vehicle (UAV) satellite models to derive tongue Changri Nup Glacier, located region. Over tongue, mean change between 2011 2015 −0.93 m year−1 or −0.84 water equivalent per year...
The rainfall‐elevation relationship in the central Himalayan region (CHR) for pre‐monsoon and monsoon seasons is analyzed utilizing 11‐year (1998–2008) high‐spatial‐resolution TRMM PR 2A25 near‐surface rainfall data. results indicate a strong between elevation during both seasons. investigation reveals relatively large amount of over higher elevations season. Interestingly, two significant peaks appear southern slope Himalayas summer first primary peak appears along Sub‐Himalayas (∼500–700 m...
Abstract. Ice cliff backwasting on debris-covered glaciers is recognized as an important mass-loss process that potentially responsible for the “debris-cover anomaly”, i.e. fact and debris-free glacier tongues appear to have similar thinning rates in Himalaya. In this study, we quantify total contribution of ice net ablation tongue Changri Nup Glacier, Nepal, between 2015 2017. Detailed surface were obtained from terrestrial photogrammetry collected November 2016, unmanned air vehicle (UAV)...
Abstract As the highest mountain on Earth, Mount Everest is an iconic peak that offers unrivalled natural platform for measuring ongoing climate change across full elevation range of Asia’s water towers. However, Everest’s extreme environment challenges data collection, particularly mountain’s upper slopes, where glaciers accumulate mass and mountaineers are most exposed. Weather stations have operated before, including world’s previous highest, but coverage has been sparse in space time....
Abstract This study aims to assess the accuracy of two satellite‐based precipitation products (SBPPs), that is, Tropical Rainfall Measurement Mission (TRMM)‐based Multi‐satellite Precipitation Analysis (TMPA) and its upgraded version Integrated Multi‐Satellite Retrievals for Global (IMERG), in capturing spatial temporal variation their application extreme events (high‐intensity drought). They were evaluated against 142‐gauge stations from Nepal during 2001–2018. The results show that,...
Abstract The 2007–19 glaciological mass-balance series of Mera Glacier in the Everest Region, East Nepal, is reanalysed using geodetic mass balance assessed by differencing two DEMs obtained from Pléiades stereo-images acquired November 2012 and October 2018. glacier-wide annual has to be systematically decreased 0.11 m w.e. a −1 match balance. We attribute part positive bias an over-estimation accumulation above 5520 a.s.l., likely due measurement network unable capture its spatial...
Precipitation is the most important variable in climate system and dominant driver of land surface hydrologic conditions. Rain gauge measurement provides precipitation estimates on ground surface; however, these measurements are sparse, especially high-elevation areas Nepal. Reanalysis datasets potential alternative for measurement, although it must be evaluated validated before use. This study evaluates performance second-generation Modern-ERA Retrospective analysis Research Applications...
The reliability of satellite precipitation products is important in climatic and hydro-meteorological studies, which especially true mountainous regions because the lack observations these areas. Two recent rainfall estimates (SREs) from Global Precipitation Measurement (GPM)-era—Integrated Multi-Satellite Retrievals for (IMERG-V06) gauge calibrated Satellite Mapping (GSMaP-V07) are evaluated their spatiotemporal accuracy ability to capture extreme events using 279 stations southern slope...
Abstract We present a multisite evaluation of meteorological variables in the Everest region (Nepal) from ERA5-Land and High Asian Refined Analysis, version 2 (HARv2), reanalyses comparison with situ observations, using classical statistical metrics. Observation data have been collected since 2010 by seven stations located on or off glacier between 4260 6352 m MSL upper Dudh Koshi basin; 2-m air temperature, specific relative humidities, wind speed, incoming shortwave longwave radiations,...
Precipitation is critical to the water towers of Hindu Kush-Himalaya-Karakoram region, exerting an important control on glacier mass balance and resources for 1.65 billion people. Given that hydroclimatic extremes stress have emerged as key hazards in context climate change, Nepal's Khumbu region overlaps vulnerabilities. Here, we investigate region's precipitation characteristics moisture sources through analysis data from a new high-altitude network automatic weather stations, which allows...
Records from new high altitude weather stations reveal the meteorological conditions on Mt Everest during 2019 monsoon. Using data June–October, we show that temperature, humidity and winds announce arrival of monsoon, with changes amplify elevation. The largest change is therefore at summit, where estimate monthly mean air temperature increased by 5.5°C between June July to average −19.1°C over Such warming takes temperatures into realm winter much lower mountains mid-latitudes, illustrated...
Abstract Understanding drought characteristics is vital for sustainable societal and ecosystem functioning, especially in ongoing climate change. The study investigates the over Nepal Himalaya using standardized precipitation index (SPI) based on monthly data from 220 ground stations between 1980 2016 at seasonal annual timescales. results show that occurrences of are more frequent after 2000s, intensifying their severity duration. cumulative probabilities short‐term (SPI3) long‐term (SPI12)...
The sensitivity of glacier mass balance to temperature and precipitation variations is crucial for informing models that simulate glaciers’ response climate change. In this study, we the glacier-wide Mera Glacier with a surface energy model, driven by in-situ meteorological data, from 2016 2020. analysis share fluxes shows radiative account almost all available during melt season (May October). However, turbulent are significant outside monsoon (June September). On an annual scale, dominant...
<title>Abstract</title> Mountain flight in Nepal remains a considerable challenge because of the rugged terrain. Many accidents have been attributed to unfavorable weather conditions related region’s complex geography. However, detailed meteorological analyses these often lacking. This research aims investigate prevailing and reliable forecasts that may developed over topography high-hills during Airbus helicopter H15 (AS350B3e), 9N-AMI accident dated 27 February 2019 Koshi Province, Nepal....
Glacial lake outburst floods (GLOFs) are recognized as a major hazard in many mountainous regions of the world, and particularly Himalaya. Much efforts around GLOF mitigation early warning Himalaya focuses on lakes classified dangerous, which generally large; however, even small glacial can produce devastating floods. This was illustrated 16 August 2024, when flood struck village Thame, Khumbu region Nepal. The originated from cascade two that had not previously been considered dangerous. We...
ABSTRACT Community forestry, a participatory forest management system, encourages conservation, enhances carbon sequestration, and advances the Sustainable Development Goals (SDGs) by increasing community ownership of resource management. in terms policies practices, directly supports SDG‐1, SDG‐13, SDG‐15 promoting empowerment as well ecosystem health. It provides immediate benefits to local livelihoods enhancing access services such fuelwood, fodder, non‐timber products. Here, we assess...
<title>Abstract</title> In the rhizosphere, phosphate-solubilizing bacteria (PSB) play a critical role in helping to promote solubilization of inorganic phosphorus compounds into soluble forms that are suitable for plant nourishment. The aim this study was investigate phosphate solubilizing and evaluate qualitative quantitative activity solubilization. This carried out from March September 2024 microbiology laboratory National Soil Science Research Center (NSSRC), Nepal Agricultural Council...
Abstract. Snow and glacier cover in the Upper Karnali Basin (UKB) are crucial freshwater reservoirs that support downstream ecosystems human populations. This study uses remote sensing GIS data from various sources, MODIS-derived land surface temperature, ERA5 reanalysis climate datasets to analyze snow dynamics 2002 2023/24. The results show a significant decrease snow-covered area (SCA), with an annual decline of about 3.99 km². Seasonal variations indicate most reductions during monsoon...
Characteristics of summer (June–August) precipitation over two coastal mountain regions in South Asia (Western Ghats: WG and Myanmar West Coast: MWC) with a focus on topographic impact are analyzed using the 13-year (1998–2010) high spatial resolution (0.05° × 0.05°) version 6 data obtained from Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR). A relationship between patterns topography was observed mountains. In both MWC, maximum rainfall along tight line upwind side...
The mountainous country with complex topography and climatic conditions over Nepal, the Tropical Rainfall Measuring Mission (TRMM-3B42), were evaluated for monitoring extreme precipitation events using 142-gauge observation from January 1998 to December 2018. Several indices based on daily timescale data selected evaluation. Detection skills, spatial distribution, trends in also investigated. TRMM product moderately capture (POD>70%) true (Probability of Detection) at most station. Although,...