Layer: WRD_Water_Acres_Update

View In: Map Viewer

Name: WRD_Water_Acres_Update_2024

Display Field:

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <div style="text-align:Left;">This feature layer contains polygon data calculating the cumulative water acres within the 88 ocean, coastal, and Great Lakes National Park units. This data accompanies the NPS Natural Resource Report titled “Shoreline Length and Water Area in the Ocean, Coastal, and Great Lakes Parks (Second Edition): Updated Statistics for Shoreline Miles and Water Acres” <a href="https://irma.nps.gov/DataStore/Reference/Profile/2299484" style="color:rgb(0, 97, 155); text-decoration-line:none; font-family:inherit;">(Winchell</a> et al., 2024), which is an update to the original report <a href="https://irma.nps.gov/DataStore/Reference/Profile/2180595" style="color:rgb(0, 97, 155); text-decoration-line:none; font-family:inherit;">(Curdts,</a> 2011). The goal of this project was to recalculate the number of shoreline miles and water area within each park unit using the best available data. Note: For park units located in marine settings, “water acres” refers to ocean, estuarine, and tidally influenced waters. For park units in the Great Lakes region, “water acres” refers to freshwater. For all park units, freshwater bodies such as lakes, ponds, and rivers that exist inland of the marine or Great Lake shoreline are excluded from the calculation. Existing shoreline products from federal, state, and NPS sources were visually assessed for each park and compared to reference imagery within ESRI ArcGIS Pro to determine the best available data. The resulting shoreline delineation for each park was reviewed by NPS park, regional, national, and/or Inventory and Monitoring Network staff, and manual adjustments were made as needed to accurately reflect the shoreline. Park boundaries were provided by NPS Land Resources Division (LRD) and are accessible via NPS DataStore (with a few exceptions as noted within the report). Shoreline miles and water acres within each park’s boundary were then calculated within a Geographical Information System (GIS) framework. These calculations were made based on the best-known data as of December 2022. These shoreline miles and water acres statistics and associated geospatial data and maps are intended for general reference only; they are useful for describing the scale of NPS holdings and management responsibilities. The data should not be used for navigational purposes. The data and maps generated from this project are not legally binding and are not intended to be used as such.</div>

Copyright Text:

Min. Scale: 0

Max. Scale: 1128

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

Drawing Info:

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HasZ: true

HasM: true

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeNone

Object ID Field: FID

Unique ID Field:

Global ID Field:

Type ID Field:

Fields:

FID (type: esriFieldTypeOID, alias: FID, SQL Type: sqlTypeInteger, length: 0, nullable: false, editable: false)
UNIT_CODE (type: esriFieldTypeString, alias: UNIT_CODE, SQL Type: sqlTypeNVarchar, length: 10, nullable: true, editable: true)
UNIT_NAME (type: esriFieldTypeString, alias: UNIT_NAME, SQL Type: sqlTypeNVarchar, length: 254, nullable: true, editable: true)
State (type: esriFieldTypeString, alias: State, SQL Type: sqlTypeNVarchar, length: 10, nullable: true, editable: true)
WaterAcres (type: esriFieldTypeString, alias: WaterAcres, SQL Type: sqlTypeNVarchar, length: 254, nullable: true, editable: true)
Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeFloat, nullable: true, editable: false)
Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeFloat, nullable: true, editable: false)

Templates:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 12/30/2024 8:30:43 PM

Schema Last Edit Date: 6/9/2023 12:21:47 AM

Data Last Edit Date: 3/1/2024 3:36:15 PM

Supported Operations: Query Query Top Features Query Analytic Query Bins Generate Renderer Validate SQL Get Estimates ConvertFormat

Layer: WRD_Water_Acres_Update_2024 (ID:0)