Name: Sediment Diversity

Display Field: GridID

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This dataset constitutes a portion of the input data for the Northeast Fishing Effects Model (Fishing Effects), and its primary purpose is to indicate the number of sediment types associated with each 5 x 5 km grid cell in the percent sediment base layer for the Fishing Effects model. The maximum diversity is five, since there are five grain size classes: mud, sand, granule/pebble, cobble, and boulder. The grain size distribution was modeled based on available data (primarily from the USGS and SMAST drop camera survey dataset, and also from various sediment polygon data sources). This layer provides a rough indication of the diversity of sediment types within a cell. The associated map of sediment grain size diversity can be used to inform various spatial planning issues where seabed diversity is a consideration for decision making. It is important to understand caveats and limitations associated with both the underlying source data and this compilation when using the data for spatial planning. Additional information about the model can be found on the <a href="https://www.nefmc.org/library/fishing-effects-model" target="_blank">New England Fishery Management Council's Fishing Effects</a> page.

Definition Expression: N/A

Copyright Text: New England Fishery Management Council, 2020. For questions contact Michelle Bachman, mbachman@nefmc.org

Default Visibility: false

MaxRecordCount: 1000

Supported Query Formats: JSON, AMF, geoJSON

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Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: false

Can Scale Symbols: false

Use Standardized Queries: true

Extent:

XMin: -8611020.2341
YMin: 4077078.6543999985
XMax: -7365550.703199999
YMax: 5657373.000299998
Spatial Reference: 102100  (3857)

Drawing Info:

Renderer:
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Labeling Info:

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HasZ: false

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HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• Shape ( type: esriFieldTypeGeometry , alias: Shape )
• GridID ( type: esriFieldTypeInteger , alias: GridID )
• Mud ( type: esriFieldTypeDouble , alias: Mud )
• Sand ( type: esriFieldTypeDouble , alias: Sand )
• GrPe ( type: esriFieldTypeDouble , alias: GrPe )
• Cobble ( type: esriFieldTypeDouble , alias: Cobble )
• Boulder ( type: esriFieldTypeDouble , alias: Boulder )
• StDeep ( type: esriFieldTypeDouble , alias: StDeep )
• n_sed ( type: esriFieldTypeInteger , alias: n_sed )
• n_pts ( type: esriFieldTypeInteger , alias: n_pts )
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• Shape_Length ( type: esriFieldTypeDouble , alias: Shape_Length )
• Shape_Area ( type: esriFieldTypeDouble , alias: Shape_Area )

Supported Operations:   Query   Generate Renderer   Return Updates