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首页> 外文会议>International Conference on Water and Environment(WE-2003); 20031215-18; Bhopal(IN) >Hydrologic Modelling Using GIS
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Hydrologic Modelling Using GIS

机译：使用GIS进行水文建模

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摘要

Water is one of the most fundamental prevalent substances in the earth atmosphere system. Understanding of general laws governing the distribution of water over earth and water balance of sea and river basin is essential for the rational use and management of the water resource. From global perspective hydrologic cycle is complete, but within catchments is not complete. The changes in hydrologic cycle have impact on water quality, drainage, agriculture, flood etc. In the present study an attempt has been made to create a digital database pertaining to natural resources. An integrated analysis of this database on watershed basis is used in estimation of the runoff from ungauged catchments. The study area covers the Dhule taluk in the south - eastern part of the Dhule district and located between 20°37′20″ to 21°10′00″ North latitude and 74°20′12″ to 74°59′51″ East longitude. The Dhule tehsil falls in zone - 6 of the agro - climatic zones. GIS database is developed by incorporating the digital information pertaining to topography of the study area, land use and lands cover patterns, stream channel and drainage network. Respective attribute information is also collected and is fed into the database and the data is analysed. By using the developed database of drainage map and land use/ land cover, runoff from ungauged catchments of the study area is estimated by using the rational formula. This work attempts to highlight how GIS can be used for the development of watersheds.
机译：水是地球大气系统中最基本的普遍物质之一。理解控制水在地球上的分布以及海河流域水平衡的一般规律对于合理利用和管理水资源至关重要。从全球角度看，水文循环是完整的，但集水区内的水文循环是不完整的。水文循环的变化对水质，排水，农业，洪水等产生影响。在本研究中，人们试图建立一个与自然资源有关的数字数据库。在分水岭的基础上对该数据库进行综合分析可用于估算未引水流域的径流。研究区域覆盖了Dhule区东南部的Dhule taluk，位于北纬20°37′20″至21°10′00″和东经74°20′12″至74°59′51″之间经度。 Dhule tehsil落在农业-气候区的6区。 GIS数据库是通过整合与研究区域的地形，土地利用和土地覆盖格局，河道和排水网络有关的数字信息而开发的。还将收集相应的属性信息，并将其输入数据库中，并对数据进行分析。通过使用发达的排水图和土地利用/土地覆盖数据库，可以使用合理公式估算研究区域未开垦集水区的径流。这项工作试图强调如何将GIS用于流域开发。

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