基于ArcSWAT的流域水文参数评价

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摘要

气候变化是导致地球从冰河时代进化到现在的不可避免的现象。由于温度的升高,蒸散速率增加,导致最大事件率升高。这就提出了对流域进行分析的必要性,这些流域对气候变化表现出相当大的脆弱性。采用半分布式水文模型SWAT进行模拟分析。模式运行已进行了35年,其中将模式输出与蒸散发的观测值进行了比较。模型经过5年的验证,NSE为0.89。经校正和验证的模型显示,在82mm降水条件下,蒸散发和地表径流的平均值(mm)分别为303mm和285mm。印度西部的Hathmati流域被用来展示这项工作
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessment of Hydrological Parameters of the Watershed using ArcSWAT
Climate change is an inevitable phenomenon that has lead the earth to evolve from an ice age to present era. Due to rise in temperature, rate of Evapotranspiration is increasing that leads to higher rate of maximum event. This raises the need to analyse the watersheds which shows considerable vulnerability towards climate change. SWAT model is chosen to simulate the analysis which is a semi-distributed hydrological model. The model run has been carried out for 35 years where model outputs are compared with the observed values of Evapotranspiration. Model is successfully validated for five years giving NSE as 0.89. Calibrated & Validated model shows that average values of Evapotranspiration & Surface Runoff in mm against 882mm of rainfall are 303mm & 285mm respectively. A Hathmati watershed of western India is taken to demonstrate the work
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