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GulfDataAtlas/NOS_StaticThreeZoneSalinityScheme (MapServer)

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Service Description: This map of estuarine salinity zones is based on analysis of long-term salinity data for 37 Gulf of Mexico estuaries. Each estuary was subdivided into three possible salinity zones between the head of tide and the seaward boundaries, based on annual-averaged and depth-averaged salinities. The three zones include a Tidal Fresh Zone (0 - 0.5 parts per thousand), a Mixing Zone (0.5 - 25 parts per thousand) , and a Seawater Zone (25 parts per thousand or greater). This three-zone scheme is considered static rather than dynamic because it does not take into account the seasonal variations in salinity patterns and stratification that occur in most estuaries. Note that not all estuaries contain all three zones - for example, Baffin Bay, Texas, receives relatively little freshwater inflow, and is considered to be entirely Seawater Zone.

Map Name: Static Three-Zone Salinity Scheme

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Layers: Description: This map of estuarine salinity zones is based on analysis of long-term salinity data for 37 Gulf of Mexico estuaries. Each estuary was subdivided into three possible salinity zones between the head of tide and the seaward boundaries, based on annual-averaged and depth-averaged salinities. The three zones include a Tidal Fresh Zone (0 - 0.5 parts per thousand), a Mixing Zone (0.5 - 25 parts per thousand) , and a Seawater Zone (25 parts per thousand or greater).

Copyright Text: National Ocean Service, Special Projects Office

Spatial Reference: 102100  (3857)


Single Fused Map Cache: false

Initial Extent: Full Extent: Units: esriMeters

Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP

Document Info: Supports Dynamic Layers: true

MaxRecordCount: 1000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, geoJSON

Supports Query Data Elements:

Min Scale: 0

Max Scale: 0

Supports Datum Transformation: true



Child Resources:   Info   Dynamic Layer

Supported Operations:   Export Map   Identify   QueryDomains   QueryLegends   Find   Return Updates   Generate KML