Layer: Baltimore Core and Edge Forest (ID:6)

View In: Map Viewer

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tree canopy using an edge parameter of 15 m based on observed changes in vegetation composition and structure (Baker, unpublished data).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:

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:

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:

patch_loc: Core

patch_loc: Edge

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 Query Pivot Query Top Features Query Analytic Query Bins Generate Renderer Validate SQL Get Estimates ConvertFormat