National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States 1991-2001

Name: National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States 1991-2001
Creator: Department of the Interior
Published: 2026-01-17T10:52:56+08:00

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水质评估监测

环境地理单元划分

数据链接：

https://catalog.data.gov/dataset/national-water-quality-assessment-nawqa-study-unit-investigations-in-the-conterminous-1991-172b7 数据链接链接失效反馈

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资源简介：

This is a coverage of the boundaries and codes used for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program Study-Unit investigations in...

提供机构：

Department of the Interior

National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States 1991-2001

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