TauDEM Tools for Watershed Delineation and Analysis

TauDEM suite of programs where developed to calculate hydrologic information from Digital Elevation Models (DEM). It includes DEM conditioning and correction, delineation, stream network development, distance to features (stream or divide), accumulation (downslope, decay limited, concentration limited, accumulation limited, reverse), avalanche runout zone, and others. For flat or closed basins, the typical approach of conditioning the DEM by pit-filling doesn't work well and those areas need to be masked.

Presentation at 2018 AWRA Spring Specialty Conference: Geographic Information Systems (GIS) and Water Resources X, Orlando, Florida, April 23-25, http://awra.org/meetings/Orlando2018/

TauDEM工具包是为从数字高程模型（Digital Elevation Models，DEM）计算水文信息而开发的程序集。其功能涵盖DEM预处理与校正、流域边界勾画、河网生成、要素距离计算（河道或分水线）、累积分析（下坡累积、衰减限制型累积、集中限制型累积、累积限制型累积、反向累积）、雪崩流路径区分析等。针对平坦或闭合流域，采用填洼方式进行DEM预处理的常规方法效果欠佳，此类区域需进行掩膜处理。

本报告展示于2018年美国水资源协会（AWRA）春季专题会议：地理信息系统（Geographic Information Systems，GIS）与水资源X，该会议于美国佛罗里达州奥兰多市举办，会议时间为2018年4月23日至25日，会议网址：http://awra.org/meetings/Orlando2018/