58535 Entity Published / External 58450 GL_StClair_Detroit_River 2019 ESI NAVIGATION/MARINE Polygons, Lines, Points Data Set Completed 2019-09 The NAV_MARINE_POINT table contains attribute information for the vector POINTS representing navigation/marine areas, including boat ramps, ferries, lock and dams, marinas, and ports found in the Great Lakes - St. Clair / Detroit River System. The key field, HUNUM, links to the SOC_DAT table where attribute information for the vector POINTS in this data set are stored. A second field, TYPE, stores a 1-4 letter abbreviation of the mapped resource type. This field can be used to quickly identify feature types, and is used to symbolize the human use data layers. See the Entity_and_Attribute_Overview for a detailed description of how the primary attribute tables relate to the geographic data layers. Also see the Browse_Graphic section for a link to the entity-relationship diagram, which describes the relationships between attribute tables in the ESI data structure. | Description Source: NOAA ESI Guidelines The ESI data are intended to provide baseline environmental data for oil spill planning and response. The Clean Water Act with amendments by the Oil Pollution Act of 1990 requires response plans for immediate and effective protection of sensitive resources. The ESI data may be appropriate for many other coastal management efforts, though the original intent should be kept in mind. GIS File Socioeconomic features represented as points. 1 TYPE TEXT 4 Yes No Active The human-use features depicted on the maps are those that could be impacted by an oil spill or could provide access for response operations. TYPE is used to symbolize the map; it can also be used as a quick identifier for the managed polygon features. Greater detail about the object is provided in the SOC_DAT table. | Description Source: NOAA ESI Guidelines Upper BR: boat ramps |F: ferries | LD: lock and dams | M: marinas | P: ports 2 HUNUM NUMBER Yes Yes Active An identifier that links the SOCECON features to their related attributes in the SOC_DAT table. | Description Source: NOAA ESI Guidelines 20200003 – 20201457 gov.noaa.nmfs.inport:58535 David Moe Nelson 2020-01-10T14:52:05 SysAdmin InPortAdmin 2022-08-09T17:11:44 2020-02-14 Office of Response and Restoration ORR 1002 Public No 2020-02-14 1 Year 2021-02-14