Groundwater-level contour map of Fauquier County, Virginia, October–November 2018

This dataset is the product of a geospatial interpolation using groundwater-level data obtained from a U.S. Geological Survey (USGS) synoptic survey of 129 groundwater wells in Fauquier County, VA from October 29 through November 2, 2018 and selected points from the National Hydrography Dataset (NHD). Methodology is detailed in USGS SIR 2022-5014 \"Groundwater-level contour map of Fauquier County, VA, October - November 2018.\" Files include a continuous raster surface of groundwater-level altitudes at a horizontal resolution of 30 meters and vector lines of discrete groundwater-level altitude contours.

The groundwater district map is Idaho Groundwater Districts (GWDs) as established under Idaho Code § 42-5202.

本数据集为地理空间插值（geospatial interpolation）的成果，其数据源包含两部分：一是2018年10月29日至11月2日，针对美国弗吉尼亚州福基尔县129口地下水井开展的美国地质调查局（U.S. Geological Survey, USGS）同步勘测所获取的地下水位数据；二是取自国家水文数据集（National Hydrography Dataset, NHD）的选定点位。相关方法细节详见美国地质调查局SIR 2022-5014号报告《2018年10-11月弗吉尼亚州福基尔县地下水位等值线图》。数据集包含两类文件：一类是水平分辨率为30米的地下水位高程连续栅格表面，另一类是离散地下水位高程等值线矢量线。本数据集附带的地下水区地图为依据《爱达荷州法典》第42-5202条划定的爱达荷州地下水区（Idaho Groundwater Districts, GWDs）。