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Layer: Ocean Sediment Thickness Contours (ID: 8)

Name: Ocean Sediment Thickness Contours

Display Field: depth

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: Ocean sediment thickness contours in 200 meter intervals for water depths ranging from 0 – 18,000 meters. These contours were derived from a global sediment thickness grid distributed by the National Geophysical Data Center (NGDC). The NGDC grid was compiled from various existing sediment thickness maps and drilling cores, and has a cell resolution of 5 arc seconds. Sediment thickness data is typically acquired through two methods. Seismic (or sub-bottom) profile technologies rely on powerful pulses of low-frequency sound which penetrate the substrate and return information about substrate thickness, character, and stratification. The data are collected along transect lines and require interpolation to create comprehensive maps. Sediment thickness is also determined by direct measurement through coring, which provides more detailed information but only at discrete sites. Coring data can also be interpolated to form area maps, and to help interpret the seismic data.

Definition Expression: N/A

Copyright Text: NOAA National Geophysical Data Center

Default Visibility: true

MaxRecordCount: 10000

Supported Query Formats: JSON, AMF, 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

Drawing Info: Advanced Query Capabilities:
HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Supported Operations:   Query   Generate Renderer   Return Updates