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Geospatial approach to elucidate anomalies in the hierarchical organization of drainage network in Kuttiyadi river basin, Southern India

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Frontiers of Earth Science 2022年第3期16卷 786-797页

作者： Thulasi Veedu SWETHA Girish GOPINATH Arun BHADRAN Arjun P Department of Geology and Environmental Science Christ CollegeKerala 680125India Geomatics Division Centre for Water Resources Development and ManagementKerala 673571India Department of Climate Variability and Aquatic Ecosystems Kerala University of Fisheries and Ocean StudiesKerala 682508India Earthquake Geology Division Geological Survey of IndiaNER Shillong 793014India

An assessment of anomalies in the hierarchical organization of the drainage network in the Kuttiyadi river basin(KuRB),Kerala,has been performed by considering various morphometric parameters such as bifurcation index(R),hierarchical anomaly index(Δa),hierarchical anomaly density(ga),and stream gradient index(SL)in a geographical information system(GIS)***,a digital elevation model(DEM)of the area has been generated from Cartosat stereo pair data at 2.5-m *** computed quantitative information about drainage characteristics reveals the highest drainage anomaly is observed in sub-watersheds(SW)III and *** is observed that neo-tectonic activity caused the development of younger stage drainage patterns of structural controls in the sub-watersheds of this river *** tectonic activityinduced diffusion,high energy fluvial erosion,and anthropogenic interferences altered the hierarchical organization of the drainage network of the sub-watersheds in mature to old stages of geomorphic *** results of finding validated with asymmetry factor and ratio of the hierarchical index(Δa)with hierarchical anomaly number(A),bifurcation index(R),direct bifurcation ratio(Rdb),stream gradient index(SL),and denudation index(logTu).From the denudation index analysis,the sediment yield of the river basin is identified as 0.67 t·km^(−2)·yr^(−1).Moreover,the asymmetric factor(AF)in the KuRB shows the imprints of Paleo−Neo Proterozoic crustal tilting toward a NNW−SSE direction.

关键词： river basin hierarchical anomaly bifurcation index stream gradient index denudation index Cartosat-1 DEM

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Use of Sentinel-1 imagery for flood management in a reservoir-regulated river basin

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Frontiers of Earth Science 2018年第3期12卷 506-520页

作者： T. PERROU A. GAR/OUD I. PARCHARIDIS Department of Geography Harokopio University of Athens Athens Greece European Space Agency/ESRIN Frascati Rome Italy Department of Geography University Paris Diderot Paris France

Flood hazard monitoring and mapping is of great importance because it represents a significant contribution to risk management. The present study investigated the flood event that occurred downstream from the transboundary Strymon river basin, more specifically at Serres basin-a reservoir-regulated basin, in the beginning of 2015. The focus of this study was to better understand the spatio-temporal dynamic of the flood and the causes that initiated the hazard. Within the Serres basin, the Strymon transboundary river outflows to Lake Kerkini, which regulates water flow downstream for irrigation purposes and flood protection. For this research, a dataset of Sentinel-1 SAR GRD images was collected and processed covering the period of October 2014-October 2015 to investigate the water level changes in Lake Kerkini. Based on SAR images, binary water/non-water products and multitemporal RGB amplitude images were generated and interpreted. Sentinel-1 products have proved to be an effective tool on flood hazard dynamic extension mapping and estimation of water extent bodies retained by small reservoirs. In agreement with hydro-meteorological data and the high-resolution DEM, it was conceived that the flood event occurred due to the water volume flowing from upstream in the reservoir and the large amount of water draining from the tributaries into nearby sub-basins. Moreover, inefficient water management of the overwhelming water flow through the dam could further strengthen the flood event. The proposed approach, which is entirely based on open access remotely sensed data and processing tools, could be implemented in the same area for past flood events to produce archive retrospective data, as well as in other similar reservoir-regulated river basins in terms of water management and flood risk management.

关键词： flood mapping Sentinel-1 SAR binary images multitemporal image river basin

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Study of Influence of Terrain and Climatic Factors on Groundwater-Level Fluctuation in a Minor river basin Using GIS

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Geo-Spatial Information Science 2011年第3期14卷 190-197页

作者： N.Radhakrishnan L.Elango Geosensing Information Pvt.Ltd. Department of Geology Anna University

Terrain environment parameters play a vital role in controlling groundwater movement:its recharge and discharge *** earlier studies have been conducted relating terrain parameters and groundwater condition using conventional me-thods and remote sensing *** study,however,endeavors to spatially visualize the degree of fluctuation in the ground-water level of Ongur,a minor river basin in different terrain units under different seasons(monsoon and summer) for three histori-cal periods of time using Geographic Information System(GIS) raster analysis.

关键词： groundwater river basin terrain environment parameters seasonal fluctuations GIS

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Multiobjective Optimal Water ResourcesManagement for a Large river basin

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Systems Science and Systems Engineering 1999年第2期9卷 244-251页

作者： Mahmoud Mohammad Issa Hasan(Ph. D Student in Hydrology and Weter Resources Enginering, College of Hydrology and WaterResources Engineering, Hohai University, Nanjing 210098 P. R. China)

The availalability. use, development, and management of water resources are receivingincreasing attentioll worldwide. As demands for water continues to grow and the resources continue todwindle or at best remain constant at some level, it has become increasingly necessary to develop moreand more methods for the managaement of this scarce resource especially in arid and semiarid *** necessity of integrated planning and management of the basin arises because of insufficient anderratic nature of the rainfall. The purpose of this paper is to determine the optimal operation policy ofthe water resources for the river basins to meet the multi-objective demands of water requirements. Anoptimization approach has been developed to aid decision making in the real time allocation of waterwithin t he context of a large-scale, multi-objective, complex river system. The optimization approach isbased on the Progressive Optimality Algorithm, Golden Search techniqlle, and the ε-constraint *** a case study, the present methodology is applied to the Yellow river Reservoir system in China andpresented in a companion paper in this issue.

关键词： multiobjective optimization reservoir operation, large scale real time allocation river basin water resources

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Decani Bistrica river basin Waters

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Journal of Environmental Science and Engineering(B) 2017年第9期6卷 449-455页

作者： Sali Fazliu Enkelejda Gjinali Department of Water Recourses Management University of Pristine for Civil Engineering Pristine 10000 Republic of Kosova Department of Environmental Engineering Polytechnic University of Tirana Tirana 1000 Albania

The catchment in Republic of Kosova can be divided in basins of the rivers as： basin of White Drino in village Radavc, Peja municipality; basin of river Iber, Mitrovica municipality; basin of river Morava of Binca, Gjilani municipality and basin of river Lepenci in Kacanik municipality. The watershed subject to this paper belongs to the basin of White Drino which belongs to the Adriatic sea catchment. This river occupies nearly 6.13% of the catchment of ＂White Drino＂ and has several positive features which make it more interesting for the study such as a considerable amount of annual rainfall and a distinct topography providing strong currents. The study comprises of a detailed analysis of the quantity of water which can be accumulated and used for water supply, irrigation for agricultural, production of electric hydropower and recreation.

关键词： Catchment river basin stream rainfall utilizations of water resources.

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The Preliminary Research and Analysis of Ecological Environment Construction in the Small river basin——A Case Study in Taojia Small river, Yunnan

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Agricultural Biotechnology 2019年第6期8卷 59-63页

作者： Haifan WANG Yuanjun XU Yunnan Forestry Technological College

Through nearly seven months of investigation and research, detailed information and data on vegetation resources, land resources and other ecological resources in the Taojia small river basin were obtained, and the data were analyzed and processed. The results show that due to the destruction of forest vegetation, the steep slope reclamation and water channel leakage in the Taojia small river basin, well fields and forest land at multiple sites in the basin have been buried by mud and rock, and abundant forest vegetation distributed in the middle and upper reaches has reduced to the situation of a forest coverage rate of only 15.5%. As a result, a vicious circle of "ecological destruction, soil erosion, farmland reduction, poverty, steep slope cultivation, ecological destruction" has been formed. Based on the analysis of the basic ecological background of the basin, six ecological restoration proposals such as planting soil and water conservation forests and fruit trees and blockading protection were proposed, in order to provide support for restoring the ecological environment of the basin and achieving sustainable development of the ecological environment within the basin.

关键词： Dongchuan Yunnan river basin Ecological resources Soil erosion Sustainable development

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Incorporating Groundwater Dynamics and Surface/Subsurface Runoff Mechanisms in Regional Climate Modeling over river basins in China

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Advances in Atmospheric Sciences 2013年第4期30卷 983-996页

作者：秦佩华谢正辉袁星 State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences Department of Civil and Environmental Engineering Princeton University

To improve the capability of numerical modeling of climate-groundwater interactions, a groundwater component and new surface/subsurface runoff schemes were incorporated into the regional climate model RegCM3, renamed RegCM3_Hydro. 20-year simulations from both models were used to investigate the effects of groundwater dynamics and surface/subsurface runoff parameterizations on regional climate over seven river basins in China. A comparison of results shows that RegCM3_Hydro reduced the positive biases of annual and summer （June, July, August） precipitation over six river basins, while it slightly increased the bias over the Huaihe river basin in eastern China. RegCM3_Hydro also reduced the cold bias of surface air temperature from RegCM3 across years, especially for the Haihe and the Huaihe river basins, with significant bias reductions of 0.80~C and 0.88~C, respectively. The spatial distribution and seasonal variations of water table depth were also well captured. With the new surface and subsurface runoff schemes, RegCM3_Hydro increased annual surface runoff by 0.11 0.62 mm d 1 over the seven basins. Though previous studies found that incorporating a groundwater component tends to increase soil moisture due to the consideration of upward groundwater recharge, our present work shows that the modified runoff schemes cause less infiltration, which outweigh the recharge from groundwater and result in drier soil, and consequently cause less latent heat and more sensible heat over most of the basins.

关键词： groundwater runoff river basin regional climate

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Changes of Terrestrial Water Storage in river basins of China Projected by RegCM4

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Atmospheric and Oceanic Science Letters 2013年第3期6卷 154-160页

作者： ZOU Jing XIE Zheng-Huix XIE Zheng-Hui QIN Pei-Hua MA Qian SUN Qin State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China University of Chinese Academy of Sciences Beijing 100049 China Beijing Normal University Beijing 100875 China

In this study, a historic simulation covering the period from 1951 to 2000 and three projected scenario simulations covering 2001-2050 were conducted em- ploying the regional climate model RegCM4 to detect the changes of terrestrial water storage （TWS） in major river basins of China, using the Intergovernmental Panel on Climate Change （IPCC） Special Report on Emissions Scenarios （SRES）： A1B, A2, and B1. The historic simula- tion revealed that the variations of TWS, which are dominated by precipitation in the basins, rely highly on their climatic features. Compared with the historic simu- lation, the changes of TWS in the scenario simulations showed strong regional differences. However, for all sce- narios, TWS was found to increase most in Northeast China and surrounding mountains around the Tibetan Plateau, and decrease most in eastern regions of China. Unlike the low seasonal variations of TWS in arid areas, the TWS showed strong seasonal variations in eastern monsoon areas, with the maximum changes usually oc- curring in summer, when TWS increases most in a year. Among the three scenario simulations, TWS increased most in Songhua river basin of B1 scenario, and de- creased most in Pearl river basin of A2 scenario and Hal river basin of A1B scenario, accompanied by different annual trends and seasonal variations.

关键词： terrestrial water storage RegCM4 river basin climate scenario

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Review:The International Sediment Initiative case studies of sediment problems in river basins and their management

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International Journal of Sediment Research 2018年第2期33卷 216-219页

作者： Cheng Liu Desmond E.Walling Yun He International Research and Training Center on Erosion and Sedimentation College of Life and Environmental Sciences University of Exeter Information Center China Institute of Water Resources and Hydropower Research

Management of sediment in river basins and waterways has been an important issue for water managers throughout history. The changing nature of sediment issues has meant that water managers today face many complex technical and environmental challenges in relation to sediment management. UNESCO’s International Hydrological Programme(IHP) launched the International Sediment Initiative(ISI) in *** aims to further advance sustainable sediment management on a global scale. This is achieved through the delivery of a decision support framework for sediment management that provides guidance on legislative and institutional solutions, applicable across a range of socio-economic and physiographic settings in the context of global change. ISI mobilizes international experience on sediment problems and their management through the compilation of a series of case studies representative of a broad range of physiographic and socio-economic conditions, which are made available as guidance for policy makers dealing with water and river basin management. Case studies prepared to date include the basins of the Nile, Mississippi, Rhine, Volga, Yellow, and Haihe and Liaohe rivers. Available in full from the ISI website,these detailed case studies are briefly introduced in this review articles.

关键词： Sediment river basin International Sediment Initiative(ISI) Sediment management

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The Ecosystem Condition of basin of the Trans Border river Argun in Zabaikalsky Krai, Russia

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Journal of Resources and Ecology 2015年第2期6卷 119-122页

作者： Gazhit Ts. TSYBEKMITOVA 俄罗斯科学院西伯利亚分院自然资源生态与冰冻学研究所

Cyclic climatic changes, as well as the press of anthropogenic impact, affect ecosystems of the river Argun basin. Specialization of basin management is industrial and agricultural. The main impact is connected with the development of mining companies （including the mining of ore and placer gold）, energy facilities, and the formation of reservoirs in the basin of rivers： the Argun -- the Hailar. As a result of natural and anthropogenic pressure, the limiting factor for ecosystem exploitation in this basin is water resources （water deficiency and its quality）.

关键词： river basin legal and regulatory framework transformation of the ecosystems climate anthropogeniccontributions hydrochemistry biodiversity

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