Grid cells used for Surface-Water Network for the Central Valley Hydrologic Model

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. This digital dataset contains the segment and reaches for the surface-water network by model cell for the Central Valley Hydrologic Model (CVHM). The Central Valley encompasses an approximate 50,000 square-kilometer region of California. The complex hydrologic system of the Central Valley is simulated using the U.S. Geological Survey (USGS) numerical modeling code MODFLOW-FMP (Schmid and others, 2006 ). This simulation is referred to here as the CVHM [...]

本数据集发布于美国地质调查局（U.S. Geological Survey, USGS）关于科学数据审核、批准与发布政策的2016年10月1日生效日期之前，该政策详见USGS《调查手册》第502.8章《基础科学实践：科学数据发布的审核与批准》。本数字数据集包含针对中央谷地水文模型（Central Valley Hydrologic Model, CVHM）、按模型格网划分的地表水网络水系分段与河段。中央谷地覆盖加利福尼亚州约50000平方千米的区域。中央谷地复杂的水文系统采用美国地质调查局（USGS）的数值模拟代码MODFLOW-FMP进行模拟（Schmid等，2006）。本模拟过程在本数据集中被称为CVHM[...]