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Layer: Structure (Moderate) (ID: 60)

Parent Layer: St. John USVI (2009)

Name: Structure (Moderate)

Display Field: ZONE

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Thirteen distinct and non-overlapping geomorphological structure types were mapped using a combination of semi-automated classification and visual interpretation of acoustic imagery. Geomorphological structure refers to a habitat feature’s dominate physical composition and does not address its location (e.g., on the Bank/Shelf). The structure types are defined in a collapsible hierarchy ranging from three major classes (Coral Reef and Hardbottom, Unconsolidated Sediment, and Unknown), to ten detailed classes (Individual Patch Reef, Aggregated Patch Reefs, Aggregate Reef, Pavement, Pavement with Sand Channels, Rhodoliths, Rhodoliths with Scattered Coral and Rock, Sand, Sand with Scattered Coral and Rock and Unknown). Habitat features with areas smaller than the map’s minimum mapping unit or MMU (1,000 m2) were not considered. For example, sand halos surrounding individual patch reefs were often too small to be mapped independently.

Copyright Text: NOAA/NOS/NCCOS/MSE/Biogeography Branch

Default Visibility: false

MaxRecordCount: 1000

Supported Query Formats: JSON, geoJSON

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Drawing Info: Advanced Query Capabilities:
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HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Supported Operations:   Query   Query Attachments   Generate Renderer   Return Updates

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