Total atmospheric deposition of reduced nitrogen in the United States Pacific Northwest for 2002

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 spatial data set was created by the U.S. Geological Survey (USGS) to represent the amount of wet and dry deposition of reduced nitrogen in the Pacific Northwest region of the United States (Hydro Region 17; Major River Basin 7 (MRB7)) during 2002.

本数据集发布于2016年10月1日美国地质调查局（U.S. Geological Survey）相关政策生效日前，该政策对科学数据的审核、批准及发布流程作出规定，具体参照《美国地质调查局勘测手册第502.8章：基础科学实践：科学数据发布的审核与批准》。本空间数据集由美国地质调查局（USGS）编制，旨在表征2002年美国太平洋西北地区（水文区域17；主要流域7（MRB7））内还原态氮的湿沉降与干沉降总量。