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Thematische Bibliographien / RAKTI BASIN

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Auswahl der wissenschaftlichen Literatur zum Thema „RAKTI BASIN“

Autor: Grafiati

Veröffentlicht am 18. Mai 2024

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Zeitschriftenartikel zum Thema "RAKTI BASIN"

1

Thapa, Bibek, Anusha Danegulu, Naresh Suwal, Surabhi Upadhyay, Bikesh Manandhar, and Rajaram Prajapati. "Rainfall-Runoff Modelling of the West Rapti Basin, Nepal." Technical Journal 2, no. 1 (2020): 99–107. http://dx.doi.org/10.3126/tj.v2i1.32846.

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A hydrological model helps in understanding, predicting, and managing water resources. The HEC-HMS (Centre for Hydrological Engineering - Hydrological Modelling Systems, US Army Corps of Engineers) is one of the hydrological models used to simulate rainfall-runoff and routing processes in diverse geographical areas. In this study, a semi-distributed hydrological model was developed using HEC-HMS for the West-Rapti river basin. The model was calibrated and validated at each outlet of sub-basins and used to simulate the outflow of each sub-basins of the West Rapti river basin. A total of eight rain gauge stations, five meteorological stations, and three hydrological stations, within the basin, were used. The simulated results closely matched the observed flows at the three gauging stations. The Nash-Sutcliffe Efficiency indicated the good model performance of the simulated streamflow with the observed flow at two stations and satisfactory model fit at one station. The performance based on percentage bias and root mean square error was good. This model provides a reference to study water balance, water resource management, and flooding control of the West Rapti basin and can be replicated in other basins.

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2

Singh, Chander Kumar, Anand Kumar, and Sonal Bindal. "Arsenic contamination in Rapti River Basin, Terai region of India." Journal of Geochemical Exploration 192 (September 2018): 120–31. http://dx.doi.org/10.1016/j.gexplo.2018.06.010.

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3

Shilpakar, Rajendra Lal, Wim G. M. Bastiaanssen, and David J. Molden. "A remote sensing-based approach for water accounting in the East Rapti River Basin, Nepal." Himalayan Journal of Sciences 7, no. 9 (2011): 15–30. http://dx.doi.org/10.3126/hjs.v7i9.5785.

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Accurate estimates of evapotranspiration across different land uses are a major challenge in the process of understanding water availability and uses in a river basin. This study demonstrated a remote sensing-based procedure for accurately generating evaporative depletion and runoff in mountainous areas using Landsat ETM+ images combined with standard hydro-meteorological data. The data was used as a key input into the International Water Management Institute (IWMI)’s water accounting procedure to understand how water is now used, and opportunities for improvements in the future. We found a higher annual actual evapotranspiration from the riparian forest than from irrigated agriculture in the East Rapti River basin of Nepal. Another important finding of our study is that simple rainfall surplus can be a good predictor of river flow at an ungagged site of the East Rapti River basin. The water accounting analysis revealed that there is the potential for further development of water resources in the East Rapti River basin as only 59% of the total available water is depleted. A critical analysis of social and ecological flow requirements downstream is necessary before any development of water resources upstream. This study successfully demonstrated that the key inputs required for evaluating and monitoring the overall water resources conditions in a mountainous river basin can be computed from satellite data with a minimal support from ground information.DOI: http://dx.doi.org/10.3126/hjs.v7i9.5785 Himalayan Journal of Sciences Vol.7 Issue 9 2011 pp.15-30

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Regmi, H. P., P. P. Regmi, J. P. Dutta, and D. R. Dangol. "Farmers’ perception on climate change and ecological hazards in Riu and Rapti waterbasin, Chitwan, Nepal." Journal of Agriculture and Environment 18 (May 12, 2018): 59–66. http://dx.doi.org/10.3126/aej.v18i0.19890.

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A survey research was done to study the farmers’ perception on climate change and ecological hazards in Riu and Rapti water basin, Chitwan, Nepal. Altogether 120 households, 60 from each water basin in Riu and Rapti were selected randomly for the study. Pre-tested interview, direct observation, focus group discussion as well as secondary data from Department of Hydrology and Meteorology (DHM), Kathmandu were used to collect the required information. Majority of the farmers’ perceived the change in climatic condition in their locality in terms of increase in hotter days, decrease in colder days, variability in the number of rainy days, decrease in rainfall duration, increase in amount and intensity of rainfall, late onset and shift of usual monsoon pattern, prolonged occurrences of dry spells, decrease water level in the river as compared to the past decades. Farmers prioritized the floods/riverbank cutting (61.7%) and drought (63.4%) hazards for obtaining immediate solution/adaptation strategies in Riu water basin; and for drought (60%) and loss of wetland and declining water source (45%) in Rapti water basin. Analysis of the climatic data (last 42 years for rainfall and last 30 years for temperature) showed the increasing trend of annual rainfall (6.83 mm per year) and those of both maximum and minimum temperature (0.019°C per year and 0.069°C per year, respectively). These analyses strongly support the farmers’ perception about the climate change and for which immediately effective adaptation mechanism is required.

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Talchabhadel, Rocky, and Rajendra Sharma. "Real Time Data Analysis of West Rapti River Basin of Nepal." Journal of Geoscience and Environment Protection 02, no. 05 (2014): 1–7. http://dx.doi.org/10.4236/gep.2014.25001.

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6

Kumari, Sonali, Vikram Singh, Shakti Suryavanshi, and Mukesh Kumar. "Application of SWAT Model for Hydrological Simulation of Rapti River Basin." Journal of Experimental Agriculture International 46, no. 6 (2024): 140–53. http://dx.doi.org/10.9734/jeai/2024/v46i62466.

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This study aimed at application of SWAT model for hydrological simulations of Rapti River Basin (RRB) water systems. The Rapti River originates from Nepal and then it comes in India. SWAT (Soil and Water Assessment Tool) model was used for hydrological simulation of the RRB surface and sub surface water systems. SWAT is a comprehensive, semi-distributed river basin model that requires a large number of input parameters, which complicates model parameterization and calibration. The RRB was discretised into 4 sub-basins and 630 hydrological response units (HRUs) and calibration and validation was carried out at Bagasoti using monthly flow data of 11 years, respectively. We first calibrated the model in SWAT-CUP which is a decision-making framework that incorporates a semi-automated approach (SUFI2) using manual calibration and incorporating sensitivity and uncertainty analysis. Parameter sensitivity analysis helps focus the calibration and uncertainty analysis and is used to provide statistics for goodness-of-fit. In this study Calibration has been done between simulated and observed discharge data (1974-1985) for 50 simulations with 6 parameters that is Curve number (CN2 = 0.945), Groundwater delay (GW_DELAY = 50), Baseflow alpha factor (ALPHA_BF = 0.58), Manning's "n" value for the main channel (CH_N2 = 0.15), Effective hydraulic conductivity in main channel alluvium (CH_K2 = 10.20) and Available water capacity of the soil layer (SOL_AWC = 0.28). The results were analysed and compared with the observational data. The model performance evaluation showed acceptable ranges of values (i.e., Nash Sutcliff was 0.75 and R2 was 0.71). After model calibration, in order to predict water balance, the model was validated by using the best parameter.

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Bhattarai, Tek Narayan, and Swastik Ghimire. "Flood Susceptibility Analysis in West Rapti River Basin Using Frequency Ratio Model." Jalawaayu 3, no. 1 (2023): 1–24. http://dx.doi.org/10.3126/jalawaayu.v3i1.52053.

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Floods are recognized as lethal natural events, which result in devastating natural and human losses. So, identifying flood susceptible zones is crucial to adopt necessary mitigation strategies beforehand. With the advent of GIS tools and modelling techniques, mapping of such zones has become easier and more precise; yet, flood prone countries like Nepal have not been able to embrace such tools for flood risk management. With a compelling need to address this situation, this paper employs Frequency Ratio model to analyze flood susceptibility in the West Rapti River Basin. The model, created with the help of 77 flood points and tested with 30 points to obtain 80.7% accuracy, maps the flood hazard zones in the area and identifies the lower Terai and settlement regions as high-risk areas. With the increasing threat of changing climate in the future, this study also propounds better preparation of flood inventory maps in the future for more precise susceptibility analysis models and better flood risk management.

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1, Meemansa, and Manish Kumar Saini. "A COMPREHENSIVE REVIEW OF MODE OF ACTION OF DRAKSHADI YOGA IN MANAGEMENT OF ASRIGDARA." International Ayurvedic Medical Journal 8, no. 9 (2020): 4516–19. http://dx.doi.org/10.46607/iamj3508092020.

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Asrigdara or dysfunctional uterine bleeding is a menstrual disorder causing the excessive or prolonged bleeding hence deteriorating the health of female. As per Ayurveda classics, according to its pathogenesis Pittashamaka, Vatanulomana, Rakta-Sthapaka, Rakta-Samgrahi, Agni-deepana and Garbhashaya-balya Chikitsa is beneficial in Asrigdara. Because the main motive in its management is to stop bleeding and achieve the normal menstrual cycle in terms of bleeding, duration and frequency, Acharaya Charaka also said its treatment to accomplish on the principles of management of Raktatisara, Raktapitta and Rakta ar-sha. Thus, Drakshadi yoga was taken in this review article from Sushruta Samhita Uttar Tantra 45/34 in reference to Raktapitta Chikitsa. Present study is concerning illumination on the basic mode of action of Drakshadi Yoga in treating the Asrigdara.

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Mohanty, Bishnupriya, Divya Naik, and Sangram Keshari Das. "JALAUKA ANUSHASTRANAM-AN INTEGRATED UNDERSTANDING." International Ayurvedic Medical Journal 11, no. 6 (2023): 1285–87. http://dx.doi.org/10.46607/iamj1111062023.

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The basic Ayurvedic treatment is based on two principles viz. Shodhan Chikitsa (Elimination Therapy) and Shaman Chikitsa (Internal medicine). Shodhana Chikitsa deals with five purificatory procedures popularly known as Panchakarma. Acharya Susruta included Rakta Mokshana in Panchakarma and described it as the best procedure because it eliminates all three vitiated Doshas viz. Vata, Pitta & Kapha. Jalaukavacharana is a type of Raktamokshana where leeches are used for bloodletting. This is considered the most effective and unique method of Raktamokshana as vitiated Doshas are removed from the body without using any cutting instruments, so, Raktamokshana by means of ‘Leech’ comes under the Ashastra category. The following paper deals with the basic concepts of leeches therapy and the method of using leeches for Rakta Mokshana.

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Gautam, Dilip K., and Anup G. Phaiju. "Community Based Approach to Flood Early Warning in West Rapti River Basin of Nepal." Journal of Integrated Disaster Risk Management 3, no. 1 (2013): 155–69. http://dx.doi.org/10.5595/idrim.2013.0060.

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Dissertationen zum Thema "RAKTI BASIN"

1

Bhattacharya, Sudip Kumar. "Comprehensive study on the problems of management of the Rakti Basin in the Darjeeling Himalaya." Thesis, University of North Bengal, 1993. http://hdl.handle.net/123456789/854.

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2

Nilsson, Sara. "Sustainable development around the Lake Victoria basin, part 1, : a case study of farmers'perception of the VI Agroforestry Project Masaka/Rakai, Uganda, from a gender perspective." Thesis, Linköping University, Department of Thematic Studies, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2572.

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<p>During the years the awareness of gender issues has increased in the international arena and the importance of including gender aspects in development projects has been emphasised. This Master’s thesis is based on a case study of the VI Agroforestry Project (VIAFP) in Uganda and is one of the two subprojects of the study Sustainable development around the Lake Victoria basin, with the purpose to investigate the importance of local anchoring and active participation in the work towards sustainable development. The aim of this subproject is to investigate how gender roles among men and women in Kalisizo zone, in the Masaka and Rakai districts, in Uganda, affect the VI Agroforestry Project and if the project in return affects the gender roles. </p><p>The study is primarily based on interviews with farmers involved in the VIAFP activities in Kalisizo zone and shows that the project and the gender roles affect each other more or less in both ways. The women are somewhat more active in both farming and the activities connected with the household, and therefore also more engaged in the project activities and meetings. However, the gender roles have changed in the way that men have increased their interest in farming activities since they joined the VI Agroforestry Project. Both men and women involved in the VIAFP activities have more work on their farm than before they joined the project, but it seems as if they think it is worth the extra effort to gain more in the end. However, the project has to consider the fact that women often have a bigger workload to start with. </p><p>It is important for the VIAFP to adjust the activities and the feedback to different wishes and needs within the communities so that everyone feels they gain from the project activities, and also so that everyone who wants to participate at different activities have the opportunity to do so. Since the majority of the staff are Ugandans the ways of implying values from the North into the communities are less than if this had not been the case. </p><p>The study is published in two versions, both as a Master's thesis for the Environmental Science Programme, Linköping University and as a Minor Field Study for Sida. The differences between the versions are only editorial.</p>

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Buchteile zum Thema "RAKTI BASIN"

1

Rana, Narendra Kumar. "Floodplain Management in Rapti River Basin." In Spatial Diversity and Dynamics in Resources and Urban Development. Springer Netherlands, 2015. http://dx.doi.org/10.1007/978-94-017-9771-9_20.

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2

Neupane, Shekhar Nath, and Ashish Pandey. "Hydrological Modeling of West Rapti River Basin of Nepal Using SWAT Model." In Water Management and Water Governance. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58051-3_19.

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3

Rana, Narendra Kumar, and Neha Singh. "Governance Issues for Sustainable Water Management in Rapti River Basin, Uttar Pradesh." In Sustainable Development Goals Series. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-85839-1_16.

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4

Tolo, Casim Umba, Enock Amos Majule, and Julius Bunny Lejju. "Local and Indigenous Knowledge Systems in Subsistence Agriculture, Climate Risk Management, and Mitigation of Community Vulnerability in Changing Climate, Lake Victoria Basin: A Case Study of Rakai and Isingiro Districts, Uganda." In Nile River Basin. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-02720-3_23.

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5

Kumar, Rajesh. "Flood Inundation and Hazard Mapping of 2017 Floods in the Rapti River Basin Using Sentinel-1A Synthetic Aperture Radar Images." In Applications and Challenges of Geospatial Technology. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-99882-4_6.

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6

Talchabhadel, R., H. Nakagawa, K. Kawaike, K. Yamanoi, and R. Prajapati. "Numerical simulation of inundation process of a heavy precipitation event: A case study of August 2014 in West Rapti River basin, Nepal." In River Flow 2020. CRC Press, 2020. http://dx.doi.org/10.1201/b22619-261.

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