Hydrologic Soil Group for the Upper Colorado River Basin in Daymet Climate Data resolution (hsg_UCRB_Daymet_resolution.txt)

These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. hsg_UCRB_Daymet_resolution.txt is an Esri ASCII grid representing the hydrologic soil group (HSG) for the Upper Colorado River Basin. The HSG for an area is determined by the least water-transmitting layer in the soil column. The Natural Resources Conservation Service (NRCS) classifies four HSGs from Group A (high infiltration capacity and low overland flow potential) to Group D (low infiltration capacity and high overland flow potential). In Soil-Water [...]

本数据集发布于2016年10月1日之前，彼时美国地质调查局（USGS）制定的科学数据审核、批准与发布政策尚未正式生效；该政策详见《USGS勘测手册第502.8章：基础科学实践：科学数据发布的审核与批准》。文件hsg_UCRB_Daymet_resolution.txt采用Esri ASCII网格（Esri ASCII grid）格式，代表科罗拉多河上游流域的水文土壤组（hydrologic soil group，简称HSG）。区域的水文土壤组由其土壤剖面中透水性最差的土层决定。美国自然资源保护局（Natural Resources Conservation Service，简称NRCS）将水文土壤组划分为四类，从A组（入渗能力强、坡面径流潜力低）至D组（入渗能力弱、坡面径流潜力高）。在土壤-水[……]