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obs/NWM_Stream_Analysis (MapServer)

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View Footprint In:   ArcGIS Online Map Viewer

Service Description:

This service is built by processing the analysis assimilation output of the National Water Model river network based data. All output of the river network dataset have the same geospatial extent covering all of CONUS with partial coverage into Canada and Mexico. Currently, the service contains two layers: one depicting streamflow values and the other indicating streamflow anomalies.

Each layer contains 6 sub layers each with varying levels of simplification and filtering to make visualization more performant. There is also an additional labels layer which shows known stream names at the lowest scale. The streamflow layer colorizes streams according to the rate in which water is flowing through the stream while the anomaly layer colorizes streams according to how far their flow values deviate from normal flow values. All flow values are in cubic feet per second (CFS). Model Output Version: v3.0

Link to metadata

Questions/Concerns about the service, please contact the DISS GIS team

Time Information:

This service is not time enabled

Map Name: Layers


All Layers and Tables

Dynamic Legend

Dynamic All Layers

Layers: Description: See Service Description.

Copyright Text: Source: NOAA/NWS/OWP

Spatial Reference: 4269  (4269)

Single Fused Map Cache: false

Initial Extent: Full Extent: Units: esriDecimalDegrees


Document Info: Supports Dynamic Layers: true

Resampling: false

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   QueryLegends   QueryDomains   Find   Return Updates   Generate KML