Name: Baltimore Core and Edge Forest
Display Field: patch_loc
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: This layer displays the core and edge forest patches related to the Urban Forest Patch Viewer app. The layer displays forest patch cover in Baltimore, MD derived from 2017/18 high resolution tree canopy data (CBPO 2022). To identify forest area within each city, tree canopy over impervious surfaces was first subtracted from the overall tree canopy layer, including buildings and roads identified from planimetric data. Morphological spatial pattern analysis (MSPA; Vogt et al. 2007) was then used to distinguish forest patches from remaining tree canopy using an edge parameter of 15 m based on observed changes in vegetation composition and structure (Baker, unpublished data). MSPA applies the 15 m edge parameter to distinguish forest core from surrounding edges. Patches always include core areas and their surrounding edges, as well as any perforations.
Copyright Text: Chesapeake Bay Program Office (CBPO), 2022. One-meter Resolution Land Cover Dataset for the Chesapeake Bay Watershed, 2017/18. Developed by the
University of Vermont Spatial Analysis Lab, Chesapeake Conservancy, and U.S. Geological Survey. [Accessed July 1, 2024], [https://www.chesapeakeconservancy.org/conservation-innovation-center/high-resolution-data/lulc-data-project-2022/].
Vogt P, Riitters K H, Estreguil C, Kozak J, Wade T G and Wickham J D 2007 Mapping spatial patterns with morphological image processing Landsc. Ecol. 22 171–7. https://doi.org/10.1007/s10980-006-9013-2.
Min. Scale: 0
Max. Scale: 0
Default Visibility: true
Max Record Count: 2000
Supported query Formats: JSON, geoJSON, PBF
Use Standardized Queries: True
Extent:
XMin: -8539459.0325
YMin: 4749964.398
XMax: -8519243.9194
YMax: 4775099.8993
Spatial Reference: 102100 (3857)
Drawing Info:
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HasZ: false
HasM: false
Has Attachments: false
Has Geometry Properties: true
HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText
Object ID Field: OBJECTID
Unique ID Field:
IsSystemMaintained : True
Global ID Field:
Type ID Field: patch_loc
Fields:
- OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
- patch_id (type: esriFieldTypeDouble, alias: Unique ID for patch, SQL Type: sqlTypeOther, nullable: true, editable: true)
- patch_loc (type: esriFieldTypeString, alias: Location within patch, SQL Type: sqlTypeOther, length: 80, nullable: true, editable: true)
- patch_type (type: esriFieldTypeString, alias: Patch type, SQL Type: sqlTypeOther, length: 80, nullable: true, editable: true)
- edge_acres (type: esriFieldTypeDouble, alias: Edge area in acres, SQL Type: sqlTypeOther, nullable: true, editable: true)
- core_acres (type: esriFieldTypeDouble, alias: Core area in acres, SQL Type: sqlTypeOther, nullable: true, editable: true)
- patch_area (type: esriFieldTypeDouble, alias: Patch area in acres, SQL Type: sqlTypeOther, nullable: true, editable: true)
- Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
- Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)
Types:
ID: Core
Name: Core
Domains:
Templates:
Name: Core
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:
ID: Edge
Name: Edge
Domains:
Templates:
Name: Edge
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:
Is Data Versioned: false
Has Contingent Values: false
Supports Rollback On Failure Parameter: true
Last Edit Date: 10/17/2024 2:53:20 PM
Schema Last Edit Date: 10/17/2024 2:53:20 PM
Data Last Edit Date: 10/17/2024 2:53:20 PM
Supported Operations:
Query
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Query Analytic
Query Bins
Generate Renderer
Validate SQL
Get Estimates
ConvertFormat