Hydro Nepal: Journal of Water, Energy and Environment最新文献_第10页

Freshwater Scarcity and Sustainable Water Management in the Hindu Kush-Himalayan (HKH) Region 兴都库什-喜马拉雅(HKH)地区的淡水短缺和可持续水管理

Hydro Nepal: Journal of Water, Energy and Environment Pub Date : 2014-10-22 DOI: 10.3126/HN.V15I0.11291

Pabitra Gurung, T. Sherpa

引用次数: 8

Harnessing Fisheries Innovation for Transformational Impact in Nepal 利用渔业创新促进尼泊尔的变革影响

Hydro Nepal: Journal of Water, Energy and Environment Pub Date : 2014-10-22 DOI: 10.3126/HN.V15I0.11295

T. Gurung

{"title":"Harnessing Fisheries Innovation for Transformational Impact in Nepal","authors":"T. Gurung","doi":"10.3126/HN.V15I0.11295","DOIUrl":"https://doi.org/10.3126/HN.V15I0.11295","url":null,"abstract":"In Nepal, per capita fish production lags far below most of the world. To be on par with our neighbors, present fish production would need to be increased at least three- or fourfold. For fish production to have a transformational impact on Nepal’s economy, an increase of four- or fivefold would be needed within a decade before the climate change could impact severely the industry. As well, businesses and the government would need to move quickly to produce a more favorable environment for job creation. However, for this transformation to happen pronouncedly, we need to know what additional fisheries technologies would best suit to enhance substantial production under putative climate changes and stimulating socioeconomics for more job and income opportunities. In this paper, we propose several solutions keeping intact aquatic biodiversity. 1) Carp, catfish Pangasius spp, tilapia and rainbow trout would provide the best returns from the marketplace. 2) Recreational fisheries and further cold water aquaculture opportunities need to be improved, 3) Head and tail waters of Pico-, micro-, and mega-hydropower should be prioritized as an area of aquaculture concern for harnessing Nepal’s vertical gradient landscape. DOI: http://dx.doi.org/10.3126/hn.v15i0.11295 HYDRO Nepal Journal Journal of Water, Energy and Environment Volume: 15, 2014, July Page: 53-59","PeriodicalId":117617,"journal":{"name":"Hydro Nepal: Journal of Water, Energy and Environment","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121360813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Runoff Forecasting and Its Application in Reservoir Operation and Flood Warnings in Nepal 尼泊尔径流预报及其在水库运行和洪水预警中的应用

Hydro Nepal: Journal of Water, Energy and Environment Pub Date : 2014-10-22 DOI: 10.3126/HN.V15I0.11288

A. Khanal, N. P. Timalsina, K. Alfredsen

引用次数: 0

Improved Particle Swarm Optimization Algorithm for Hydrothermal Generation Scheduling 热液发电调度的改进粒子群算法

Hydro Nepal: Journal of Water, Energy and Environment Pub Date : 2014-10-22 DOI: 10.3126/HN.V15I0.11298

Deepika Yadav, R. Naresh, Veena Sharma

{"title":"Improved Particle Swarm Optimization Algorithm for Hydrothermal Generation Scheduling","authors":"Deepika Yadav, R. Naresh, Veena Sharma","doi":"10.3126/HN.V15I0.11298","DOIUrl":"https://doi.org/10.3126/HN.V15I0.11298","url":null,"abstract":"The short term hydrothermal scheduling (STHTS) problem is a complicated nonlinear dynamic constrained optimization problem, which plays an important role in the economic operation of electric power systems. The objective of hydro thermal generation scheduling is to minimize the overall operation cost and to satisfy the given constraints by scheduling optimally the power outputs of all hydro and thermal units under study periods, given electrical load and limited water resource. This paper presents an improved particle swarm optimization (IPSO) algorithm for solving the STHTS problem considering valve point loading for fixed head hydro-thermal system. Various other heuristic algorithms such as basic PSO, modified PSO, differential evolution, real variable genetic algorithm (RVGA) are also implemented on the same problem. The programs for these algorithms have been developed in Matlab software. From the simulation results, it is found that the IPSO based approach is able to provide a better solution at a lesser computational effort. DOI: http://dx.doi.org/10.3126/hn.v15i0.11298 HYDRO Nepal Journal Journal of Water, Energy and Environment Volume: 15, 2014, July Page: 65-72","PeriodicalId":117617,"journal":{"name":"Hydro Nepal: Journal of Water, Energy and Environment","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132037017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Prospects of Storage and Pumped- Storage Hydropower for Enhancing Integrated Nepal Power Systems 提高尼泊尔综合电力系统的蓄能和抽水蓄能水电前景

Hydro Nepal: Journal of Water, Energy and Environment Pub Date : 2014-10-22 DOI: 10.3126/HN.V15I0.11290

N. Sah, Madhab Uprety, S. Bhandari, Prativa Kharel, S. Suman, R. Maskey

{"title":"Prospects of Storage and Pumped- Storage Hydropower for Enhancing Integrated Nepal Power Systems","authors":"N. Sah, Madhab Uprety, S. Bhandari, Prativa Kharel, S. Suman, R. Maskey","doi":"10.3126/HN.V15I0.11290","DOIUrl":"https://doi.org/10.3126/HN.V15I0.11290","url":null,"abstract":"An Integrated Power System (IPS) should have electrical energy generating plants for base load (e.g., nuclear and thermal plants) and peak load (e.g., hydropower plants) so that they can work in coordination in such a way that the demand is met in time. In Nepal, the Integrated Nepal Power System (INPS) is a hydro-dominated system where the base and intermediate power demands are covered primarily by run-of-river hydropower plants and the peak demand by seasonal storage and several diesel power plants of lower capacity. The INPS should have sufficient natural storage and forced storage power plants to improve the system’s reliability. On top of that, daily peak electrical demand could also be adequately covered by demand-side management, using a pumped-storage hydropower plant that can employ a system’s surplus energy during low demand period for pumping. To rectify this extreme imbalance of installed capacity in Nepal, this paper explores the prospect of storage and pumped-storage power plants for enhancing INPS. A case study of Rupa-Begnas pumped-storage hydropower is highlighted for these purposes. DOI: http://dx.doi.org/10.3126/hn.v15i0.11290 HYDRO Nepal Journal Journal of Water, Energy and Environment Volume: 15, 2014, July Page: 37-41","PeriodicalId":117617,"journal":{"name":"Hydro Nepal: Journal of Water, Energy and Environment","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127927213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Fishing Gear in the Sondu-Miriu River: Level of Use, Preference and Selectivity Sondu-Miriu河渔具:使用水平、偏好和选择性

Hydro Nepal: Journal of Water, Energy and Environment Pub Date : 2014-10-22 DOI: 10.3126/HN.V15I0.11301

B. Waswala-Olewe, James Okot Okuku, R. Abila

{"title":"Fishing Gear in the Sondu-Miriu River: Level of Use, Preference and Selectivity","authors":"B. Waswala-Olewe, James Okot Okuku, R. Abila","doi":"10.3126/HN.V15I0.11301","DOIUrl":"https://doi.org/10.3126/HN.V15I0.11301","url":null,"abstract":"Artisan fishers of Osodo beach of Sondu-Miriu River (Kenya) use both traditional and modern gear to catch riverine fish species. This study, conducted between August 2006 and July 2007, revealed that fishers most predominantly used gear were the seine nets (42%) and the gill nets (28%). Other used gear include long lines (14%); fish baskets (9%) and weirs (7%). The selectivity of this fishing gear varied with the developmental stages of the fish to be caught. Non-selective gear caught both targeted and non-targeted species irrespective of size and development stages. The ranking of selective to non-selective fishing gear was the long lines, fish baskets, weirs, gill nets and beach nets at 2%, 11%, 16%, 24% and 32%, respectively. The non-selective fishing gear may have negative impacts on the riverine fish by reducing spawning biomass and lacustrine fish recruitment. These findings underscore the need for greater appreciation, research, and adaptation of appropriate fishing gear to ensure sustainable utilization of the riverine fisheries in Sondu-Miriu River DOI: http://dx.doi.org/10.3126/hn.v15i0.11301 HYDRO Nepal Journal Journal of Water Energy and Environment Volume: 15, 2014, July Page: 82-86","PeriodicalId":117617,"journal":{"name":"Hydro Nepal: Journal of Water, Energy and Environment","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131173445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

May You Live in Interesting Times 愿你生活在有趣的时代

Hydro Nepal: Journal of Water, Energy and Environment Pub Date : 2014-10-22 DOI: 10.3126/hn.v15i0.11286

Christopher Butler

引用次数: 1

Impacts of Climate Change as Evident in the Langtang Catchment 气候变化对朗塘流域的影响尤为明显

Hydro Nepal: Journal of Water, Energy and Environment Pub Date : 2014-10-22 DOI: 10.3126/HN.V15I0.11289

N. Gautam

引用次数: 2

Comparative Study of Flood Calculation Approaches, a Case Study of East Rapti River Basin, Nepal 洪水计算方法的比较研究——以尼泊尔东拉普提河流域为例

Hydro Nepal: Journal of Water, Energy and Environment Pub Date : 2014-10-22 DOI: 10.3126/HN.V15I0.11296

K. Rijal

{"title":"Comparative Study of Flood Calculation Approaches, a Case Study of East Rapti River Basin, Nepal","authors":"K. Rijal","doi":"10.3126/HN.V15I0.11296","DOIUrl":"https://doi.org/10.3126/HN.V15I0.11296","url":null,"abstract":"Various approaches to high flood calculation have been used to inform the design of hydraulic structures and flood protection works in Nepal. To assess potential flood volumes, a variety of methods and calculations are employed and the highest figure is adopted as correct so as to err on the side of safety. This approach, while safe, can result in excessively uneconomic design. As well, this approach erodes the designer’s confidence in the process to determine the potential flood volume and perpetuates such sub-optimal approaches. Through the case study of East Rapti River, this paper tries to shed light on various ungauged basin approaches of flood prediction currently in practice. It also compares the relative performance of those approaches using statistical methods and observed data. From the study, Jha PCJ method (1996) yielded a comparable result with the gauged basin methods. A remarkably notable fact obtained is that all the ungauged basin methods except rational method underestimated the flood discharge as compared to that obtained from the frequency analysis based on measured data sets. Overall, our study concludes that flood forecasting on ungauged basins cannot be recommended because a number of assumptions and personal judgments influence each of the prediction methods. Therefore, a more radical shift to basin specific intensive research is desirable DOI: http://dx.doi.org/10.3126/hn.v15i0.11296 HYDRO Nepal Journal Journal of Water, Energy and Environment Volume: 15, 2014, July Page: 60-64","PeriodicalId":117617,"journal":{"name":"Hydro Nepal: Journal of Water, Energy and Environment","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130065592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Evaluation of Seismic Events Occurred after Filling and Drawdown of the Reservoir at Song Tranh 2 HPP in Vietnam 越南宋川2号水电站水库充放后地震事件评价

Hydro Nepal: Journal of Water, Energy and Environment Pub Date : 2014-10-22 DOI: 10.3126/HN.V15I0.11285

Q. Trinh, K. K. Panthi

{"title":"Evaluation of Seismic Events Occurred after Filling and Drawdown of the Reservoir at Song Tranh 2 HPP in Vietnam","authors":"Q. Trinh, K. K. Panthi","doi":"10.3126/HN.V15I0.11285","DOIUrl":"https://doi.org/10.3126/HN.V15I0.11285","url":null,"abstract":"Reservoir-induced earthquakes are a challenging issue for hydropower, and have occurred at many sites around the world. However, each event is unique in itself and depends on the geo-tectonics and geo-hydrology of the area in which the event is situated. This article focuses on seismic events at the Song Tranh 2 hydropower project located in Quang Nam province, Vietnam. The construction of the 96 meter high Roller Compacted Concrete (RCC) dam of this project was completed in August 2011. Approximately one year after commissioning, the dam began experiencing a serious leakage problem through the dam body. In addition, a series of earthquakes occurred near the project area, and continued for several months. The high intensity and magnitude of the earthquakes caused damage to the project and promoted fear among the local people living in the downstream valley. The issues drew significant media attention and thousands of articles about this project were written within a short time. As a result, dam authorities have been subject to extreme public pressure.This paper describes the earthquake events and difficult situation that both the local population and authorities faced in its aftermath. In addition, we analyze seismic events qualitatively,using data and information on the water filling and drawdown processes. Our analysis provides an insight into these seismic events, as we reconstruct the earthquake scenarios and test a hypothesis of earthquake occurrence. Future earthquake activities are also predicted and compared. DOI: http://dx.doi.org/10.3126/hn.v15i0.11285 HYDRO Nepal Journal Journal of Water, Energy and Environment Volume: 15, 2014, July Page: 16-20","PeriodicalId":117617,"journal":{"name":"Hydro Nepal: Journal of Water, Energy and Environment","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127474003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4