View In:   ArcGIS Online Map Viewer

Name: CHAMP

Display Field: HUC12Name

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: <DIV STYLE="text-align:Left;"><DIV><P><SPAN>The Channel Migration Potential (CHAMP) layer contains stream networks of Western Washington (and much of Western Oregon) with associated data and information important for assessing channel migration activity. It also features information on channel characteristics such as stream flow and physical dimensions. This data layer’s main feature is a classification of channel migration potential based on channel confinement and erosion potential. The layer was derived from existing statewide geospatial datasets and classified according to channel migration measurements by the High Resolution Change Detection (HRCD) project for the Puget Sound Region (Washington Department of Fish and Wildlife, 2014). While the layer identifies the potential for channel migration, it does not predict channel migration rates. Thus, this data layer should be used to screen and prioritize stream reaches for further channel migration evaluation. The tool helps plan and prioritize floodplain management actions such as Channel Migration Zone mapping, erosion risk reduction, and floodplain restoration. The background, use, and development of the CHAMP layer are fully described in Ecology Publication 15-06-003 (full report citation and URL below). That report also describes visual assessment techniques that should be used along with the CHAMP layer to assess channel migration potential. Legg, N.T. and Olson, P.L., 2015, Screening Tools for Identifying Migrating Stream Channels in Western Washington: Geospatial Data Layers and Visual Assessments: Washington State Department of Ecology Publication 15-06-003, 40 p. https://fortress.wa.gov/ecy/publications/SummaryPages/1506003.html</SPAN><SPAN /><SPAN>The tool developers would like to thank the following people for their contribution to this work: • Brian D. Collins (University of Washington) • Jerry Franklin (Washington Department of Ecology) • Christina Kellum (Washington Department of Ecology) • Matt Muller (Washington Department of Fish and Wildlife) • Hugh Shipman (Washington Department of Ecology) • Terry Swanson (Washington Department of Ecology) This project has been funded wholly or in part by the United States Environmental Protection Agency under Puget Sound Ecosystem Restoration and Protection Cooperative Agreement Grant PC-00J27601 with Washington Department of Ecology. The contents of this document do not necessarily reflect the views and policies of the Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.</SPAN></P></DIV></DIV>

Service Item Id: dfbb296e276b4e18bae61b025f4e441e

Copyright Text: Washington Department of Ecology, Shorelands and Environmental Assistance Program, University of Washington, Washington Department of Fish and Wildlife

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MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 5.91657529E8

Max Scale: 70.53

Supports Advanced Queries: true

Supports Statistics: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Supports Datum Transformation: true

Extent:

XMin: 554512.6668682992
YMin: -999913.450836435
XMax: 1594051.2672488838
YMax: 1344623.7659196407
Spatial Reference: 2927  (2927)  LatestVCSWkid(0)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: mig_class
Field 2: N/A
Field 3: N/A
Field Delimiter: ,
Default Symbol:
N/A
Default Label: N/A
UniqueValueInfos:
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Supports Sql Expression: true
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HasM: false

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---

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Templates:
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  Drawing Tool: esriFeatureEditToolLine

---

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  Drawing Tool: esriFeatureEditToolLine

---

ID: Confined with High Erosion Potential
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---

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---

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---

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---

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  Drawing Tool: esriFeatureEditToolLine

---

ID: Unconfined with High Erosion Potential
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Domains:
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  Drawing Tool: esriFeatureEditToolLine

---

Capabilities: Query,Sync,Extract,ChangeTracking

Sync Can Return Changes: true

Is Data Versioned: true

Supports Rollback On Failure: false

Supports ApplyEdits With Global Ids: true

Supports OidReservation: true

Edit Fields Info:

• Creation Date Field: created_date
• Creator Field: created_user
• Edit Date Field: last_edited_date
• Editor Field: last_edited_user

Supports Query With Historic Moment: true

Supports Coordinates Quantization: true

Child Resources:   Field Groups   Contingent Values

Supported Operations:   Query   Validate SQL   Generate Renderer   Return Updates   Iteminfo   Thumbnail   Metadata   Update Metadata