POD! GIS Shapefile of 50km buffer of the Upper San Francisco Estuary
收藏KNB Data Repository2009-01-01 更新2026-05-11 收录
下载链接：
https://knb.ecoinformatics.org/view/doi:10.5063/AA/stoms.10.5
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资源简介：
This is an ESRI (ArcGIS) shapefile of a 50 km buffer surrounding the Upper San Francisco Estuary hydrodynamic subregions (see GIS Shapefile of Hydrodynamic Subregions of the Upper San Francisco Estuary data package). Contaminants can also be imported to the Estuary from upstream sources. As a rule-of-thumb, water travels approximately 50 km (30 miles) in a day. Therefore I delineated a drainage area that extends 50 km upstream from the boundary of the subregions (or until reaching the watershed divide where streams drain the western slope of the Coast Ranges directly into San Francisco Bay. This buffer area does not overlap with or include the hydrodynamic subregions.
提供机构：
NCEAS 12192: Fleishman: Ecosystem analysis of pelagic organism declines in the Upper San Francisco Estuary
创建时间：
2009-01-01
