sudeep thakuri - Academia.edu (original) (raw)

Papers by sudeep thakuri

Research paper thumbnail of Monitoring of High Mountain Glaciers in the Vicinity of Everest (Himalaya) using Remote Sensing Capability

AGU Fall Meeting Abstracts, Dec 17, 2014

Research paper thumbnail of Effect of Urbanization on Land Surface Temperature: A Case Study of Kathmandu Valley

The geographic base, Dec 31, 2022

Research paper thumbnail of Periglacial environment in Nepal Himalaya: Present contexts and future prospects

Nepal Journal of Environmental Science, Dec 4, 2017

Research paper thumbnail of Manganese-mediated hydrochemistry and microbiology in a meromictic subalpine lake (Lake Idro, Northern Italy) - A biogeochemical approach

Science of The Total Environment, Nov 1, 2021

This study presents the findings from several field campaigns carried out in Lake Idro (Northern ... more This study presents the findings from several field campaigns carried out in Lake Idro (Northern Italy), a deep (124 m) meromictic-subalpine lake, whose water column is subdivided in a mixolimnion (~0-40 m) and a monimolimnion (~40-124 m). Hydrochemical data highlight two main peculiarities characterizing the Lake Idro meromixis: a) presence of a high manganese/iron ratio (up to 20 mol/mol), b) absence of a clear chemocline between the two main layers. The high manganese content contributed to the formation of a stable manganese dominated deep turbid stratum (40-65 m), enveloping the redoxcline (~45-55 m) in the upper monimolimnion. The presence of this turbid stratum in Lake Idro is described for the first time in this study. The paper examines the distribution of dissolved and particulate forms of transition metals (Mn and Fe), alkaline earth metals (Ca and Mg), and other macro-constituents or nutrients (S, P, NO3-N, NH4-N), discussing their behavior over the redoxcline, where the main transition processes occur. Field measurements and theoretical considerations suggest that the deep turbid stratum is formed by a complex mixture of manganese and iron compounds with a prevalence of Mn(II)/Mn(III) in different forms including dissolved, colloidal, and fine particles, that give to the turbid stratum a white-pink opalescent coloration. The bacteria populations show a clear stratification with the upper aerobic layer dominated by the heterotrophic Flavobacterium sp., the turbid stratum hosting a specific microbiological pool, dominated by Caldimonas sp., and the deeper anaerobic layer dominated by the sulfur-oxidizing and denitrifier Sulfuricurvum sp. The occurrence in August 2010 of an anomalous lake surface coloration lasting about four weeks and developing from milky white-green to red-brown suggests that the upper zone of the turbid stratum could be eroded during intense weather-hydrological conditions with the final red-brown coloration resulting from the oxidation of Mn(II)/Mn(III) to Mn(IV) compounds.

Research paper thumbnail of Editorial: Hydrological and chemical effects of a changing cryosphere on mountain freshwaters

Frontiers in Earth Science, Jul 11, 2023

Research paper thumbnail of Disaster and Displacement: Opportunities and Challenges for Enhancing Resilience in Nepal

Emerald Publishing Limited eBooks, Jun 12, 2023

Research paper thumbnail of Stochastic hydrological and degree-day model coupled for the Himalayan glacierized catchments: the case study of Dudh Koshi River, Nepal

Research paper thumbnail of Warmed winters and weakened precipitation on Mt. Everest (central southern Himalaya) impacts glaciers, lakes, permafrost, and river discharges

Research paper thumbnail of Modeling Soil Organic Carbon Dynamics in Response to Climate Change in Mount Everest Region of Nepal

Eurasian Soil Science, Aug 1, 2021

Research paper thumbnail of Debris-covered glacier anomaly? Morphological factors controlling changes in the mass balance, surface area, terminus position, and snow line altitude of Himalayan glaciers

Earth and Planetary Science Letters, Aug 1, 2017

Research paper thumbnail of High altitude smokeless metal stove: A research, development and implementation project through the Kathmandu University

Research paper thumbnail of Methane release from enteric fermentation and manure management of domestic water buffalo in Nepal

Environmental Monitoring and Assessment

Research paper thumbnail of Assessment of channel migration of Koshi River in Nepal using remote sensing and GIS

Research paper thumbnail of Open-Source Data Alternatives and Models for Flood Risk Management in Nepal

Remote Sensing

Availability and applications of open-source data for disaster risk reductions are increasing. Fl... more Availability and applications of open-source data for disaster risk reductions are increasing. Flood hazards are a constant threat to local communities and infrastructures (e.g., built-up environment and agricultural areas) in Nepal. Due to its negative consequences on societies and economic aspects, it is critical to monitor and map those risks. This study presents the open access earth observation (EO) data, geospatial products, and different analytical models available for flood risk assessment (FRA) and monitoring in Nepal. The status of flood risk knowledge and open-source data was reviewed through a systematic literature review. Multispectral optical data are widely used, but use of microwave data is extremely low. With the recent developments in this field, especially optical and microwave data, the monitoring, mapping, and modeling of flood hazards and risk have been more rapid and precise and are published in several scientific articles. This study shows that the choice of ...

Research paper thumbnail of Lake Bathymetry, Morphometry and Hydrochemistry of Gosaikunda and Associated Lake

Journal of Tourism and Himalayan Adventures

Gosaikunda and Bhairabkunda are two largest lakes among dozens of lakes in the upper Ghattekhola ... more Gosaikunda and Bhairabkunda are two largest lakes among dozens of lakes in the upper Ghattekhola watershed of Trisuli River in Nepal. Although being important high-altitude Ramsar site from Nepal, a detailed inventory that includes essential information on their hydrological, physical, chemical, and biological characteristics and human interactions are missing. We conducted an inventory of the lakes in the watershed in the previous study and in this study; we present the Lake Bathymetry, morphometric characteristics and hydrochemistry following recent methodologies. The Gosaikunda and Bhairbakunda have the maximum depth of 26.5 m and 59.1 m with area of 13.3 and 16 ha, respectively. The study supports to establish a reference site for exploring scientific evidence on the impacts of anthropogenic and climate change on lake hydrological systems in the future.

Research paper thumbnail of Performance of rooftop rainwater harvesting system as a source of drinking water

International Journal of Environment

Rainwater Harvesting Systems (RWHSs) are increasingly being used as an alternative or supplementa... more Rainwater Harvesting Systems (RWHSs) are increasingly being used as an alternative or supplementary source of water to curb the water supply deficit in the Kathmandu valley. The harvested rainwater is primarily used for non-potable purposes like flushing toilets and irrigation, but the knowledge on the use of rainwater for potable purpose is remarkably sparse. This study assesses the suitability of rainwater in terms of quantity and quality in a public school that adopts Rooftop RWHS as the source of drinking water. In this study, we observed that the volume of rainwater being harvested is sufficient to address the current demand of drinking water, with a mean rainfall of 1664 mm on a catchment area of 372 m2. Storage capacity needs to be expanded if the demand increases. Physico-chemical and microbial analyses of water samples (before and after a series of treatments) were carried out for the winter, monsoon, and post-monsoon seasons. The values of physico-chemical parameters of t...

Research paper thumbnail of Coupling Glacio-Hydrological Response to Climate Variability in MT Everest Region in Central Himalaya

Research paper thumbnail of Debris-covered glacier anomaly? Morphological factors controlling changes in the mass balance, surface area, terminus position, and snow line altitude of Himalayan glaciers

Earth and Planetary Science Letters, 2017

Research paper thumbnail of Thermal evaluation of a greenhouse in a remote high altitude area of Nepal

Research paper thumbnail of Environmental Monitoring Schemes

... Technology Mr Ramchandra Nepal National Trust for Nature Conservation Ms Pravina Rana Faculty... more ... Technology Mr Ramchandra Nepal National Trust for Nature Conservation Ms Pravina Rana Faculty of Science, NAST Mr Sajan Subedi Madan Puraskar Guthi Mr Parwin Chetri Amrit Science Campus, Tribhuvan University Members ...

Research paper thumbnail of Monitoring of High Mountain Glaciers in the Vicinity of Everest (Himalaya) using Remote Sensing Capability

AGU Fall Meeting Abstracts, Dec 17, 2014

Research paper thumbnail of Effect of Urbanization on Land Surface Temperature: A Case Study of Kathmandu Valley

The geographic base, Dec 31, 2022

Research paper thumbnail of Periglacial environment in Nepal Himalaya: Present contexts and future prospects

Nepal Journal of Environmental Science, Dec 4, 2017

Research paper thumbnail of Manganese-mediated hydrochemistry and microbiology in a meromictic subalpine lake (Lake Idro, Northern Italy) - A biogeochemical approach

Science of The Total Environment, Nov 1, 2021

This study presents the findings from several field campaigns carried out in Lake Idro (Northern ... more This study presents the findings from several field campaigns carried out in Lake Idro (Northern Italy), a deep (124 m) meromictic-subalpine lake, whose water column is subdivided in a mixolimnion (~0-40 m) and a monimolimnion (~40-124 m). Hydrochemical data highlight two main peculiarities characterizing the Lake Idro meromixis: a) presence of a high manganese/iron ratio (up to 20 mol/mol), b) absence of a clear chemocline between the two main layers. The high manganese content contributed to the formation of a stable manganese dominated deep turbid stratum (40-65 m), enveloping the redoxcline (~45-55 m) in the upper monimolimnion. The presence of this turbid stratum in Lake Idro is described for the first time in this study. The paper examines the distribution of dissolved and particulate forms of transition metals (Mn and Fe), alkaline earth metals (Ca and Mg), and other macro-constituents or nutrients (S, P, NO3-N, NH4-N), discussing their behavior over the redoxcline, where the main transition processes occur. Field measurements and theoretical considerations suggest that the deep turbid stratum is formed by a complex mixture of manganese and iron compounds with a prevalence of Mn(II)/Mn(III) in different forms including dissolved, colloidal, and fine particles, that give to the turbid stratum a white-pink opalescent coloration. The bacteria populations show a clear stratification with the upper aerobic layer dominated by the heterotrophic Flavobacterium sp., the turbid stratum hosting a specific microbiological pool, dominated by Caldimonas sp., and the deeper anaerobic layer dominated by the sulfur-oxidizing and denitrifier Sulfuricurvum sp. The occurrence in August 2010 of an anomalous lake surface coloration lasting about four weeks and developing from milky white-green to red-brown suggests that the upper zone of the turbid stratum could be eroded during intense weather-hydrological conditions with the final red-brown coloration resulting from the oxidation of Mn(II)/Mn(III) to Mn(IV) compounds.

Research paper thumbnail of Editorial: Hydrological and chemical effects of a changing cryosphere on mountain freshwaters

Frontiers in Earth Science, Jul 11, 2023

Research paper thumbnail of Disaster and Displacement: Opportunities and Challenges for Enhancing Resilience in Nepal

Emerald Publishing Limited eBooks, Jun 12, 2023

Research paper thumbnail of Stochastic hydrological and degree-day model coupled for the Himalayan glacierized catchments: the case study of Dudh Koshi River, Nepal

Research paper thumbnail of Warmed winters and weakened precipitation on Mt. Everest (central southern Himalaya) impacts glaciers, lakes, permafrost, and river discharges

Research paper thumbnail of Modeling Soil Organic Carbon Dynamics in Response to Climate Change in Mount Everest Region of Nepal

Eurasian Soil Science, Aug 1, 2021

Research paper thumbnail of Debris-covered glacier anomaly? Morphological factors controlling changes in the mass balance, surface area, terminus position, and snow line altitude of Himalayan glaciers

Earth and Planetary Science Letters, Aug 1, 2017

Research paper thumbnail of High altitude smokeless metal stove: A research, development and implementation project through the Kathmandu University

Research paper thumbnail of Methane release from enteric fermentation and manure management of domestic water buffalo in Nepal

Environmental Monitoring and Assessment

Research paper thumbnail of Assessment of channel migration of Koshi River in Nepal using remote sensing and GIS

Research paper thumbnail of Open-Source Data Alternatives and Models for Flood Risk Management in Nepal

Remote Sensing

Availability and applications of open-source data for disaster risk reductions are increasing. Fl... more Availability and applications of open-source data for disaster risk reductions are increasing. Flood hazards are a constant threat to local communities and infrastructures (e.g., built-up environment and agricultural areas) in Nepal. Due to its negative consequences on societies and economic aspects, it is critical to monitor and map those risks. This study presents the open access earth observation (EO) data, geospatial products, and different analytical models available for flood risk assessment (FRA) and monitoring in Nepal. The status of flood risk knowledge and open-source data was reviewed through a systematic literature review. Multispectral optical data are widely used, but use of microwave data is extremely low. With the recent developments in this field, especially optical and microwave data, the monitoring, mapping, and modeling of flood hazards and risk have been more rapid and precise and are published in several scientific articles. This study shows that the choice of ...

Research paper thumbnail of Lake Bathymetry, Morphometry and Hydrochemistry of Gosaikunda and Associated Lake

Journal of Tourism and Himalayan Adventures

Gosaikunda and Bhairabkunda are two largest lakes among dozens of lakes in the upper Ghattekhola ... more Gosaikunda and Bhairabkunda are two largest lakes among dozens of lakes in the upper Ghattekhola watershed of Trisuli River in Nepal. Although being important high-altitude Ramsar site from Nepal, a detailed inventory that includes essential information on their hydrological, physical, chemical, and biological characteristics and human interactions are missing. We conducted an inventory of the lakes in the watershed in the previous study and in this study; we present the Lake Bathymetry, morphometric characteristics and hydrochemistry following recent methodologies. The Gosaikunda and Bhairbakunda have the maximum depth of 26.5 m and 59.1 m with area of 13.3 and 16 ha, respectively. The study supports to establish a reference site for exploring scientific evidence on the impacts of anthropogenic and climate change on lake hydrological systems in the future.

Research paper thumbnail of Performance of rooftop rainwater harvesting system as a source of drinking water

International Journal of Environment

Rainwater Harvesting Systems (RWHSs) are increasingly being used as an alternative or supplementa... more Rainwater Harvesting Systems (RWHSs) are increasingly being used as an alternative or supplementary source of water to curb the water supply deficit in the Kathmandu valley. The harvested rainwater is primarily used for non-potable purposes like flushing toilets and irrigation, but the knowledge on the use of rainwater for potable purpose is remarkably sparse. This study assesses the suitability of rainwater in terms of quantity and quality in a public school that adopts Rooftop RWHS as the source of drinking water. In this study, we observed that the volume of rainwater being harvested is sufficient to address the current demand of drinking water, with a mean rainfall of 1664 mm on a catchment area of 372 m2. Storage capacity needs to be expanded if the demand increases. Physico-chemical and microbial analyses of water samples (before and after a series of treatments) were carried out for the winter, monsoon, and post-monsoon seasons. The values of physico-chemical parameters of t...

Research paper thumbnail of Coupling Glacio-Hydrological Response to Climate Variability in MT Everest Region in Central Himalaya

Research paper thumbnail of Debris-covered glacier anomaly? Morphological factors controlling changes in the mass balance, surface area, terminus position, and snow line altitude of Himalayan glaciers

Earth and Planetary Science Letters, 2017

Research paper thumbnail of Thermal evaluation of a greenhouse in a remote high altitude area of Nepal

Research paper thumbnail of Environmental Monitoring Schemes

... Technology Mr Ramchandra Nepal National Trust for Nature Conservation Ms Pravina Rana Faculty... more ... Technology Mr Ramchandra Nepal National Trust for Nature Conservation Ms Pravina Rana Faculty of Science, NAST Mr Sajan Subedi Madan Puraskar Guthi Mr Parwin Chetri Amrit Science Campus, Tribhuvan University Members ...