Name: National Wetland Inventory 2005
Display Field: NWICode
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: This data set represents the extent, approximate location and type of wetlands and deepwater habitats in Michigan. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). The National Wetlands Inventory - Version 2, Surface Waters and Wetlands Inventory was derived by retaining the wetland and deepwater polygons that compose the NWI digital wetlands spatial data layer and reintroducing any linear wetland or surface water features that were orphaned from the original NWI hard copy maps by converting them to narrow polygonal features. Additionally, the data are supplemented with hydrography data, buffered to become polygonal features, as a secondary source for any single-line stream features not mapped by the NWI and to complete segmented connections. Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the data also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps. This dataset should be used in conjunction with the Wetlands_Project_Metadata layer, which contains project specific wetlands mapping procedures and information on dates, scales and emulsion of imagery used to map the wetlands within specific project boundaries.
Copyright Text:
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MaxRecordCount: 1000
Supported Query Formats: JSON, geoJSON, PBF
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Max Scale: 0
Supports Advanced Queries: true
Supports Statistics: true
Has Labels: false
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Supports Datum Transformation: true
Extent:
XMin: -1.0090993375397624E7
YMin: 5094040.210650607
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YMax: 6161769.393832144
Spatial Reference: 102100
(3857)
Drawing Info:
Renderer:
Unique Value Renderer:
Field 1: WetlandType
Field 2: N/A
Field 3: N/A
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Value: Freshwater Emergent Wetland
Label: Freshwater Emergent Wetland
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Value: Freshwater Forested/Shrub Wetland
Label: Freshwater Forested/Shrub Wetland
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Value: Freshwater Pond
Label: Freshwater Pond
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Labeling Info:
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Fields:
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OBJECTID
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type: esriFieldTypeOID, alias: OBJECTID
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NWICode
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WetlandType
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Metadata