遇见数据集

Utah Shallow Ground Water

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ArcGIS Hub2026-07-04 更新2026-07-05 收录
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资源简介:

This dataset represents the depth to groundwater in Utah, defined by areas. Original manuscript maps were provided by the Utah Geological Survey (UGS) and digitized by AGRC. The final data products were verified and approved by the UGS. Procedures_Used: Data was digitized by AGRC with ARC/INFO software from the reproduction film positive at 1:750,000 scale. After modifications. the final data products were verified and approved by the UGS. Reviews_Applied_to_Data: Possible distortion of the original manuscription (conceivably introduced through the photo-reduction process) was detected during digitizing. The digitized linework was visually compared to the source document. Differences in the base map data as depicted on this dataset are revealed when compared to other sources (eg. the shoreline of the Great Salt Lake). This disparity does not reflect the quality of the data.

本数据集为犹他州区域地下水埋深数据,以区域为划分单元。原始手绘地图由犹他州地质调查局(Utah Geological Survey, UGS)提供,由AGRC完成数字化工作,最终数据产品经犹他州地质调查局审核并批准发布。 数据处理流程:AGRC使用ARC/INFO软件,以1:750,000比例尺的阳像复制胶片为数据源开展数字化处理。经后期修改完善后,最终数据产品再次通过犹他州地质调查局的审核与批准。 数据审核说明:数字化过程中检测到原始手稿可能存在因照片缩印流程引入的失真问题。数字化后的线划要素已与源文档进行目视比对。将本数据集与其他数据源(例如大盐湖(Great Salt Lake)岸线)对比时,可发现底图数据存在差异。此类差异并不反映本数据集的数据质量问题。

创建时间:
2019-11-22
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