75876 Entity Published / External 75873 Lake Michigan: ESI (Polygons, Lines) Data Set Completed 2025-05 The ESIP table contains attribute information for the ESI classified vector polygons. GIS File Feature classes, which correspond to map layers, represent a single element and geometry type. | Description Source: NOAA ESI Guidelines 1 ESI TEXT 12 Yes No Active A numeric or alpha-numeric coded description of the characteristics for each ESI polygon. Upper 2A, 5, 7, 9A, 9B, 9C (Flats) 10A, 10B, 10C, 10D, 10E, 10F (Marshes) Acceptable attribute values will vary by region. 2 WATER_CODE TEXT 1 Yes No Active Specifies whether a polygon is water (W) or land (L). Upper L: Land | W: Water 3 ENVIR TEXT 1 Yes No Active Type of physiographic region. E = Estuarine | L = Lacustrine | P = Palustrine |R = Riverine 4 ESI_DESCRIPTION TEXT 60 Yes No Active The numeric representation and the physical description of the polygon's ESI type. Mixed 2A: Exposed, Wave-Cut Platforms (Bedrock/Mud/Clay) | 5: Mixed Sand and Gravel Beaches | 7: Exposed Tidal Flats | 9A: Sheltered Tidal Flats | 9B: Vegetated Low Banks | 9C: Hyper-Saline Tidal Flats | 10A: Salt and Brackish Water Marshes | 10B: Freshwater Marshes | 10C: Swamps |10D: Scrub and Shrub Wetlands | 10E: Inundated Low Lying Tundra | 10F: Mangroves 5 SOURCE_ID NUMBER Yes No Active The SOURCE_ID links to SOURCE in the SOURCES data table, where the source for the polygon's geographic extent is listed. This number should be the same as the SOURCE_ID in the HYDRO_LINES layer for the same segment. The SOURCE_ID begins in the range of 1-100, then is added to the Atlas ID number * 10,000 to generate a number that is unique across atlases. 20200001 - 20200100 6 ESI_SOURCE NUMBER Yes No Active ESI_SOURCE links to SOURCE in the SOURCES data table, where the source used for classifying the polygon is listed. The SOURCE_ID begins in the range of 1-100, then is added to the Atlas ID number * 10,000 to generate a number that is unique across atlases. 20200001 - 20200100 gov.noaa.nmfs.inport:75876 Katy Beckham 2025-05-12T20:52:25 Adam Rotert 2025-08-07T15:00:33 2025-08-07 Office of Response and Restoration ORR 1002 Public No 1 Year