A5070548356- Climate variability and models
- Cryospheric studies and observations
- Climate change and permafrost
- Winter Sports Injuries and Performance
- Hydrology and Drought Analysis
- Meteorological Phenomena and Simulations
- Climate change impacts on agriculture
- Hydrology and Watershed Management Studies
- Oceanographic and Atmospheric Processes
- Science and Climate Studies
- Landslides and related hazards
- Arctic and Antarctic ice dynamics
- Flood Risk Assessment and Management
- Computational Physics and Python Applications
- Urban Heat Island Mitigation
- Agricultural risk and resilience
- Tropical and Extratropical Cyclones Research
- Geophysics and Gravity Measurements
- Environmental and Agricultural Sciences
- Water Resources and Sustainability
- Aerospace Engineering and Energy Systems
- Irrigation Practices and Water Management
- Agricultural Systems and Practices
- Solar Radiation and Photovoltaics
- Marine and coastal ecosystems
Nepal Academy of Science and Technology
2013-2023
The Small Earth Nepal
2015-2021
NLR Nepal
2015-2021
BRAC
2000
University of Hawaii System
1988
Government of Nepal
1976
Over the last few decades, weather and climate extremes have become a major focus of researchers, media general public due to their damaging effects on human society infrastructure. Trends in indices are studied for South Asian region using high-quality records daily temperature precipitation observations. Data from 210 (265) (precipitation) observation stations analysed over period 1971–2000 (1961–2000). Spatial maps station trends, time series regional averages frequency distribution...
Landslides, floods, and droughts are recurring natural disasters in Nepal related to too much or little water. The summer monsoon contributes more than 80% of annual rainfall, rainfall spatial inter-annual variation is very high. Gandaki River, one the three major rivers tributaries Ganges covers all agro-ecological zones central part Nepal. Time series tests were applied for different River Basin (GRB) trends four seasons (pre-monsoon, monsoon, post-monsoon winter) from 1981 2012....
This paper presents temporal and spatial pattern of drought phenomena in central Nepal using standardized precipitation index (SPI) at multiple time scales. The study is based on 32 years monthly data from 40 meteorological stations 1981 to 2012. Results indicate that, while there no distinct trend regional precipitation, interannual variation large. Trend analysis shows that most are characterized by increases both severity frequency stronger for longer Over the period, summer season 2004,...
Global climate change has local implications. Focusing on datasets from the topographically-challenging Karnali river basin in Western Nepal, this research provides an overview of hydro-climatic parameters that have been observed during 1981–2012. The spatial and temporal variability temperature precipitation were analyzed considering seven available stations 20 distributed basin. non-parametric Mann–Kendall test Sen’s method used to study trends data. Results show average is heterogeneous,...
It's unequivocal that the global climate is changing, including rise in atmospheric temperature and variability amount pattern of precipitation, rate change Himalayan region higher than average. Since precipitation are major driving factors water resources Himalayas both upstream downstream regions, it important to understand theimpacts resource availability future. In this study, we analyzed historical hydro-climate data developed a suitable ensemble Coordinated Regional Downscaling...
Some of the characteristic features low-frequency oscillations were investigated by applying an extended empirical orthogonal function (EEOF) analysis to 30–60 day filtered outgoing longwave radiation (OLR) data during eight years of.1975–77 and 1979–83. The first two EEOF eigenvectors indicate a systematic eastward propagation modes between about 60°E date line (Indian Ocean–western Pacific), where they are most predominant. They weaken considerably time reach eastern Pacific east line,...
Improved irrigation use efficiency is an important tool for intensifying and diversifying agriculture in Nepal, resulting higher economic yield from irrigated farmlands with a minimum input of water. Research was conducted to evaluate the effect method (furrow vs. drip) on productivity nutritious fodder species during off-monsoon dry periods different elevation zones central Nepal. A split-block factorial design used. The factors considered were treatment location, crop, method. Commonly...
It has long been recognized that there is a link between sustainable development, poverty and consistent access to useable water. Increased population requiring more water changing climate altering the hydrological cycle making less accessible at time when it required. Combining measurement of availability socioeconomic capacity towards its gives new insights in fields resources management alleviation, which ultimately address agenda development. This paper customizes index (WPI) indicators...
Accumulation and ablation measurements stratigraphic studies were carried out on the Rikha Samba Glacier G 3 in Hidden Valley, Mukut Himal during monsoon season of 1974. The summer balance over whole area was slightly positive. winter snow layer observed as a dirt pit so thin that approximate net balance. total amount precipitation above firn line glacier basin very close to accumulation area. change from ice occurred due formation columnar with parallel projections surface by daily...
Surface flow velocities of three glaciers in Hidden Valley, Nepal were measured from the end July to August, 1974. The Rikha Samba glacier, largest one, moved 1-2 m/month and an unnamed glacier near Tukche Peak, only debris-covered type showed movements 0-0.5 m/month. But no movement was observed at all on a glacier-like ice mass close glacier.
The Chitwan Annapurna Landscape (CHAL) is the central part of Himalayas and covers all bioclimatic zones with major endemism flora, unique agro-biodiversity, environmental, cultural socio-economic importance. Not much known about temperature precipitation trends along different nor how changes in these parameters might impact whole natural process, including biodiversity ecosystems, CHAL. Analysis daily time series data (1970–2019) was carried out seven extending from lowland Terai to higher...
For the purpose of understanding climate glacier area northern side Himalayan range, a temporary station was set up at height 5055 m in Hidden Valley, Mukut Himal during monsoon season 1974. The temperature pattern, especially trend minimum and diurnal seems to reflect monsoonal character represent its effect better than precipitation pattern. At beginning end observation period, rapid change large range were recorded, as opposed stationary mean from middle July August, which be Valley....
Abstract The processes underlying heavy rainfall in the higher elevations of Himalayas are still not well known despite their importance. Here, we examine detailed process causing a event, observed by our rain gauge network Rolwaling valley, eastern Nepal Himalayas, using ERA5 and regional cloud-resolving numerical simulation. Heavy precipitation (112 mm day −1 ) was on 8 July 2019 at Dongang (2790 m above sea level). Most (81 mm) occurred during 1900–2300 local time (LT). synoptic-scale...
Abstract Most regions of the world have experienced significant climate warming in recent decades, generally characterized by a faster rise minimum temperature than maximum temperature. This study shows that changes on north side central and eastern Himalayas were similar to global change values from 1972 2014, while south (SHM) has been negligible over past 40 years except for trend during monsoon season. SHM are closely related cloud fraction downward longwave radiation. Over SHM,...
Agriculture production largely depends on weather conditions and is extremely prone to natural hazards. A more frequent severe occurrence of hazards such as storms floods has put food security at increased risk in recent decades. Evaluating the true impact (loss damage) disaster agriculture sector very challenging. The present study focusses using a zrandomized field experimental approach both district micro agricultural-plot levels investigate agricultural yields Sri Lanka its effect...
Some aspects of 30-60 day meridional wind fluctuations over the mid-latitude Indian Ocean were investigated using lag correlation maps for 5 summers 1979-1983. At times, equatorial low-frequency (30-60 day) modes exhibit a systematic eastward propagation. However, they are occasionallyinterrupted by irregular movements or even westward This study concentrates only on those periods with propagation and well-defined tropical-extratropical atmospheric teleconnection pattern.Low-level in domain...