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Service Description: This map depicts the Strahler stream order classification system across the State of Alaska. Strahler stream order is a river classification system that assigns a hierarchical number to a given reach of a waterway based on its branching network of tributaries. The assigned Strahler stream order number corresponds to the amount and Strahler numbers of upstream tributaries that contribute to a given portion of the waterway. In this way Strahler stream order numbers assist in classifying and understanding characteristics along the course of a watershed. This dataset was created using the 2018 National Hydrography Dataset and RivEX version 1.14 within ArcGIS Pro. Where appropriate the Canada1Water hydrologic model was used to classify transboundary watercourses. Areas of that have been determined to be pre-statehood land withdrawals are excluded from the current version of this dataset. Canada1Water Southeast AK data derived from: https://open.canada.ca/data/en/dataset/1c0e8a4e-952c-cd7a-1be8-29691aea2cd1

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Has Versioned Data: false

MaxRecordCount: 1000000

Supported Query Formats: JSON

Supports Query Data Elements: true

Layers:

• Canada1Water Southeast AK (0)
• Southeast AK (1)
• Southcentral AK (2)
• Kuskokwim, Bristol Bay Aleutian Islands (3)
• Northwest Arctic (4)
• Yukon Drainage (5)

Description:

Service Item Id: dfe5c76ad72a449c8ef453cfabce48c8

Copyright Text:

Spatial Reference: 102006  (3338)  LatestVCSWkid(0)


Initial Extent:

XMin: -1090487.48655019
YMin: 140581.02087266324
XMax: 1236792.1680091196
YMax: 2686936.113582849
Spatial Reference: 102006  (3338)  LatestVCSWkid(0)

Full Extent:

XMin: -2157227.138800001
YMin: 416938.03270000033
XMax: 1578611.2224000003
YMax: 2154905.9047
Spatial Reference: 102006  (3338)  LatestVCSWkid(0)

Units: esriMeters

Document Info:

Title: Map
Author:
Comments:
Subject:
Category:
Keywords: StreamOrder,MapServer
AntialiasingMode: null
TextAntialiasingMode: null

Enable Z Defaults: false

Supports ApplyEdits With Global Ids: true

Support True Curves : true

Only Allow TrueCurve Updates By TrueCurveClients : true

Supports Return Service Edits Option : true

Supports Dynamic Layers: false

Child Resources:   Info   Query Data Elements   Relationships

Supported Operations:   Query   Query Contingent Values   QueryDomains   Extract Changes   Get Estimates