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Geolocation of man-made reservoirs across terrains of varying complexity using GIS

机译：使用GIS在复杂程度不同的地形上对人造水库进行地理定位

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The Reservoir Sedimentation Survey Information System (RESIS) is one of the world's most comprehensive databases of reservoir sedimentation rates, comprising nearly 6000 surveys for 1819 reservoirs across the continental United States. Sediment surveys in the database date from 1904 to 1999, though more than 95% of surveys were entered prior to 1980, making RESIS largely a historical database. The use of this database for large-scale studies has been limited by the lack of precise coordinates for the reservoirs. Many of the reservoirs are relatively small structures and do not appear on current USGS topographic maps. Others have been renamed or have only approximate (i.e. township and range) coordinates. This paper presents a method scripted in ESRl's ARC Macro Language (AML) to locate the reservoirs on digital elevation models using information available in RESIS. The script also delineates the contributing watersheds and compiles several hydrologically important parameters for each reservoir. Evaluation of the method indicates that, for watersheds larger than 5 km2, the correct outlet is identified over 80% of the time. The importance of identifying the watershed outlet correctly depends on the application. Our intent is to collect spatial data for watersheds across the continental United States and describe the land use, soils, and topography for each reservoir's watershed. Because of local landscape similarity in these properties, we show that choosing the incorrect watershed does not necessarily mean that the watershed characteristics will be misrepresented. We present a measure termed terrain complexity and examine its relationship to geolocation success rate and its influence on the similarity of nearby watersheds.
机译：水库泥沙调查信息系统（RESIS）是世界上最全面的水库泥沙淤积率数据库之一，包括美国大陆1819个水库的近6000份调查。数据库中的泥沙调查可追溯到1904年至1999年，尽管超过95％的调查是在1980年之前输入的，这使得RESIS很大程度上是一个历史数据库。由于缺乏用于储层的精确坐标，该数据库用于大规模研究的使用受到限制。许多储层结构相对较小，因此不会出现在当前的USGS地形图上。其他名称已重命名或仅具有近似（即乡镇和范围）坐标。本文介绍了一种使用ESR1的ARC宏语言（AML）编写脚本的方法，可使用RESIS中提供的信息在数字高程模型上定位储层。该脚本还勾画了贡献的分水岭，并为每个水库汇编了一些水文重要参数。对方法的评估表明，对于大于5 km2的流域，将在80％的时间内识别出正确的出口。正确识别流域出口的重要性取决于应用程序。我们的目的是收集整个美国大陆上流域的空间数据，并描述每个水库流域的土地使用，土壤和地形。由于这些属性的局部景观相似性，我们表明选择不正确的分水岭并不一定意味着该分水岭特征将被错误地表述。我们提出了一种称为地形复杂性的方法，并研究了其与地理位置成功率的关系及其对附近流域相似性的影响。

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