A5067442291- Hydrology and Watershed Management Studies
- Hydrology and Drought Analysis
- Flood Risk Assessment and Management
- Climate variability and models
- Land Use and Ecosystem Services
- Remote Sensing in Agriculture
- Surface Modification and Superhydrophobicity
- Forest ecology and management
- Plasma Applications and Diagnostics
- Urban Heat Island Mitigation
- Remote Sensing and Land Use
- Cryospheric studies and observations
- Species Distribution and Climate Change
- Precipitation Measurement and Analysis
- Meteorological Phenomena and Simulations
- Hydrology and Sediment Transport Processes
- Conservation, Biodiversity, and Resource Management
- Rice Cultivation and Yield Improvement
- Water resources management and optimization
- Sustainable Agricultural Systems Analysis
- Wildlife-Road Interactions and Conservation
- Botany and Plant Ecology Studies
- Ecology and Vegetation Dynamics Studies
- Hydrological Forecasting Using AI
- Aerosol Filtration and Electrostatic Precipitation
Tribhuvan University
2016-2025
Chinese Academy of Sciences
2018-2025
Institute of Geographic Sciences and Natural Resources Research
2018-2025
Prince of Songkla University
2021
Patan Hospital
2021
University of Chinese Academy of Sciences
2019-2020
Nepal is a country of contrast, with varying altitude, climate and vegetation from the top high mountains to tropical forest in low lands. The terrestrial has rapidly been altered by change Nepal. spatial temporal evolution its linkage climatic variables were analyzed using Normalized Difference Vegetation Index (NDVI) obtained Advanced Very High Resolution Radiometer (AVHRR) sensors. A linear regression model Sen’s slope method used estimate NDVI trends Pearson correlation between variable,...
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...
Identification of drought is essential for many environmental and agricultural applications. To further understand drought, this study presented spatial temporal variations based on satellite derived Vegetation Condition Index (VCI) annual (Jan–Dec), seasonal monsoon (Jun–Nov) pre-monsoon (Mar–May) scales from 1982–2015 in Nepal. The obtained NOAA, AVHRR (National Oceanic Atmospheric Administration, Advanced Very High Resolution Radiometer) climate data meteorological stations were used. VCI...
Nepal is a mountainous country located on the southern slope of central Himalayas, where ~3% total annual rainfall occurs in winter season. The inter-annual variability and shift precipitation are great importance space time, however, has not been investigated Nepal. This study sought to investigate (DJF), below- above-average anomalies over their controlling factors associated with ocean-atmospheric circulation patterns during historical period 1987–2015. Here, we used Asian...
Understanding the spatial and temporal variation of precipitation is important to identify its driving potential extreme events that impact on socio-economic conditions at national provincial scales. This study presents related in scale using 143 rain-gauge stations across Nepal during 2001–2016. The results show differences distribution, with highest Province 4 (Bagmati) lowest 6 (Karnali). decreasing trend scale, expect for 6. distribution shows wettest (Lumle) driest (Manang Mustang)...
This paper reports the generation of cold plasma jet working under atmospheric pressure condition, for surface treatment polymeric films. The discharge has been characterized by electrical and optical methods. property studied taking current-voltage wave forms using voltage current probes. production argon is done in conditions which are relatively much cheaper, convenient, safer to use. sustained pure used improve wettability polypropylene (PP). Cold (CAPPJ) generated a high-voltage power...
Extreme precipitation events and associated hazards are becoming more frequent intense due to climate change. On June 2021, a devastating flash flood occurred in the Melamchi River Nepal causing immense destruction lives property. The event was cascading nature with multiple driving factors. This study evaluates post-extreme conditions of Flood 2021 (MF21). Rainfall, streamflow (discharge), gauge height (water level) data nearest stations were analyzed. Since there lack reliable...
As the threat of unstable braided river geomorphology to resilience local communities grows, a better understanding morphological changes in subject climate is essential. However, little research has focused on long-term planform change reaches and its response hydrological changes. The reach around Majuli Island (Majuli Reach), first typical Brahmaputra River emerging from gorge, experiences intense geomorphological channels loss riparian area every year due seasonal variability. Therefore,...
Atmospheric Pressure Plasma Jet (APPJ) has many applications in material processing such as surface modification and biomedical processing. APPJ been generated by a high voltage power supply (0-20 KV) at an operating frequency of (20-30) 23 kHz. This paper reports the generation characterization Argon environment its application polymeric materials. The discharge characterized optical electrical methods. In order to characterize plasma jet, electron temperature density determined emissions...
The cold plasma technology is gaining popularity as one of the most effective tools for a wide range applications. Cold atmospheric pressure jet (CAPPJ) has attracted considerable attention in recent times materials processing such surface modification and biomedical sustained pure argon been used here to modify properties polypropylene. CAPPJ generated by high voltage power supply 5 kV at an operating frequency 20 kHz. This paper reports diagnostics environment electrical optical methods...
Extreme precipitation events and associated hazards are becoming more frequent intense due to climate change. On June 2021, a devastating flash flood occurred in the Melamchi River Nepal causing immense destruction lives property. The event was cascading nature with multiple driving factors. This study evaluates post-extreme conditions of Flood 2021 (MF21). Rainfall, streamflow (discharge), gauge height (water level) data nearest stations were analyzed. Since there lack reliable...
Vegetation is an essential component of terrestrial ecosystem, and its responses to the climate change has been recognized as a key indicator for monitoring global climate. This study analyses temporal spatial changes Normalized Difference Index (NDVI) in Langtang National Park (LNP), Nepal, during 2000 - 2018, using MODIS 16-day NDVI product, ERA-5 precipitation temperature reanalyzes. Regression models were applied estimate trends NDVI, Pearson correlations between climatic variables...
Vegetation study is crucial for the biophysical environment and ecosystem balance. Both qualitative quantitative assessments of vegetation can give complete picture forest ecosystem. In this study, characteristics Panchase Protected Forest in Kaski district were analyzed. The was focused on structural stand, its regeneration pattern along altitudinal gradients, human impacts structure. Density, basal area, frequency, Importance Value Index (IVI) used to assess forest; Density-Diameter (DD)...
Identification of high altitudinal vegetation dynamics using remote sensing is important because the complex topography and environment in Himalayas. Langtang National Park first Himalayan park Nepal representing best area to study change central Himalaya region gradient relatively less disturbed region. This aimed at mapping its treeline ecotone Moderate Resolution Imaging Spectroradiometer (MODIS), Normalized Difference Vegetation Index (NDVI). Two sites with an altitude 3927 3802 meters...
Rice (Oryza sativa L.) is the second most important crop in world after wheat and also Nepal. The production of rice influenced by various biotic abiotic factors. Temperature major constraint for yield. present experiment was conducted to study impact temperature on straw productivity from June October 2014. under control chamber, which elevated ambient level 2ºC 3ºC entire growth period. Grain yield measured using electronic weighing machine. Maturity grain 10 7 days earlier at...
Monitoring and attributing growing season vegetation dynamics have become crucial for maintaining the structure function of ecosystem. The objective this research was to examine spatial temporal changes explore their driving forces during in Nepal. It also explored variation Normalized Difference Vegetation Index (NDVI) different altitudes at each 100m interval. National Oceanic Atmospheric Administration (NOAA) NDVI, monthly temperature, precipitation Shuttle Radar Topography Mission (SRTM)...
<title>Abstract</title> Climate change induced extreme precipitation and the associated rise in temperature have led to catastrophic floods. A flood occurred Melamchi River on 15 June recurred 31st July, 2021 Nepal. This study has investigated these events their close nexus with climate. The available daily hourly precipitation, temperature, snow depth discharge data were analyzed. regional flow during both estimated using 1-D hydraulic HEC-HMS model correlation among rainfall runoff water...