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Climatic Gradient and Hydrometeorological Characterization: Studies from the Cauvery River Basin South India

机译:气候梯度和水文气象特征:来自印度南部Cauvery河流域的研究

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摘要

Humid, transition or sub-humid and Semi-arid lands are characterized by a combination of high temporal variability in rainfall and spatial heterogeneity of Hydro meteorological properties. As a consequence, presence of decadal variations in rainfall along with temporal variations will impact on groundwater extractions for irrigation requirements and their hydrological regime. In addition, during the past half century, changes have occurred in most semi-arid lands in the southern India agricultural abandonment and consequently a change in land use. In order to investigate the hydro meteorological consequences of such abandonment, three representative field sites on contrasting climate were instrumented additional field observations, experiments and secondary data simulations were performed to characterize the watersheds. A summary of the first long term results of analyses of rainfall, Temperature Evapotranspiration wind speed and other hydro meteorological variables are analyzed in climosequence zone at micro catchment scales is presented here.
机译:湿润,过渡或半湿润和半干旱地区的特点是降雨的高时间变化性和水文气象特性的空间异质性。结果,降雨的年代际变化和时间变化的存在将影响地下水抽取量,满足灌溉需求及其水文状况。此外,在过去的半个世纪中,印度南部农业放弃的大部分半干旱土地发生了变化,因此土地用途也发生了变化。为了调查这种弃水的水文气象后果,对三个具有代表性的对比气候的野外站点进行了附加野外观测,并进行了实验和二次数据模拟以表征流域。本文介绍了在微流域尺度上对气候序列区中降雨,温度蒸散风速和其他水文气象变量的第一批长期分析结果。

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    Kumar C.; Nagesh P.C.;

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  • 年度 2014
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