Hypoxia Data Inventory Layer Description
Hypoxia Data Inventory
The Hypoxia Data Inventory is based on a spreadsheet compiled at NCDDC to document the known hypoxia-related data available from various sources. The map layer shows the footprints of the hypoxia data.
Coastline
The State Digital Geography is a digital spatial framework developed using geographic information system technology. The state geography is derived from the Census Bureau's 1:2 million scale county geography. County boundaries within each state were dissolved using a GIS. The shoreline and international boundaries in the geography come for NOAA's Coastal Assessment Framework. The geography encompasses 100 percent of the land area within the coterminous United States of America. A document is available that describes the attribute tables of this digital geography in detail. High resolution United States and Mexican states were combined together in a single states ArcSDE (spatial data engine) 8.3 layer.