Parent Layer: Hydrologic Unit Code 2 Outline

Name: Hydrologic Unit Code 2 Ouline VOS 3

Display Field: NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This layer represents the Hydrologic Unit Code 2 Ouline VOS 3 outline, The Hydrologic Unit Code 2 outline VOS 3 layer does not display out beyond 1:1,733,371 and in beyond 1:216,672. The Hydrologic Unit Code 2 Watersheds of Alberta is a feature class within the Hydrologic Unit Code Watersheds of Alberta feature dataset that represents a seamless basin-wide coverage. The coding is a two-digit numeric code. There are 19 polygons within this feature class ranging from 243 to 195 899 square kilometres in area. The Peace and the Athabasca represent the largest HUC 2 watersheds.The smallest HUC 2 watersheds are the Churchill and the Kakisa. The Churchill HUC 2 watershed consists of two parts that are maintained as separate watersheds (243 and 458 square kilometres) but their combined area is actually larger than the Kakisa HUC 2 watershed (466 square kilometres). Most of the HUC 2 watersheds are larger than 900 square kilometres. The HUC 2 watersheds are further subdivided into 42 HUC 4 watersheds. The Hydrologic Unit Code Watersheds of Alberta collection of feature classes is intended to define hydrologic units that form a standardized baseline which covers the province of Alberta. Successively smaller hydrologic units are nested within larger hydrologic units to create hierarchal watershed boundaries. These standard units are based on sound hydrologic principles (flow direction) and have been reconciled between and within the feature classes that form the dataset. Existing high resolution watersheds or catchment polygons have been collated into larger watershed units to achieve the hierarchical, nested polygon dataset structure. This dataset is produced for the Government of Alberta and is available to the general public. Please consult the Distribution Information of this metadata for the appropriate contact to acquire this dataset. The Hydrologic Unit Code (HUC) Watersheds of Alberta represents a collection of four nested hierarchically structured drainage basin feature classes that have been created using the Hydrologic Unit Code system of classification developed by the United States Geological Survey (USGS) with accommodation to reflect the pre-existing Canadian classification system. The pour points associated with the delineation of these watersheds have also been included as a point feature class. The HUC Watersheds of Alberta consist of successively smaller hydrologic units that nest within larger hydrologic units, resulting in a hierarchal grouping of alphanumerically-coded watersheds feature classes. These nesting watersheds feature classes were created using ArcHydro Tools v.2 (Alberta Environment and Parks) and are subject to periodic review and update. There are currently individual feature classes for HUC 2 (coarsest level), HUC 4, HUC 6 and HUC 8 (finest level). These are all contained within a single feature dataset. The HUC Watersheds of Alberta co-exists with the Watersheds of Alberta (GOA) as well as a number of other non-GOA watersheds datasets such as the Prairie Farm Rehabilitation Administration watersheds data publishedby Agriculture and Agri-Food Canada. The alphanumeric watershed coding follows the USGS system and also has a direct link to the Environment Canada Water Survey of Canada coding (as outlined by departmental Water Policy and Operations staff). Where possible, Water Survey of Canada regions (00XX level) were approximated by the HUC 6 level of delineation but some exceptions will be noted. Further delineation past the HUC 8 level may be required where smaller, more refined watershed units are needed. More information on the USGS hydrologic units can be found at http://water.usgs.gov/GIS/huc.html. It should be noted that the HUC Watersheds of Alberta feature class polygons may be represented as multipart polygons (i.e. there may be only one record in the database associated with more than one polygon). Multipart polygons are typically located in the same watershed or basin where by two (or more) polygons flow into another province or territory. Multipart polygons may be exploded into single part polygons if required. NOTE: this dataset replaces the Hydrologic Unit Code 2 Watersheds of Alberta released on August 13, 2015. Data Use Limitations GENERAL PUBLIC: This digital data is protected under copyright to the Government of Alberta with all rights reserved and is subject to the conditions outlined in the Informatics Branch License Agreement for Digital Data. GOVERNMENT OF ALBERTA MINISTRIES AND AUTHORIZED AGENCIES: Government of Alberta Ministries: Government of Alberta Ministries and authorized agencies may conditionally use this data for internal business purposes which includes conditional sharing of the data with other third parties (i.e. contractors, stakeholders) if necessary for reasonable use of the data relating to the provision of services to the Crown as represented by each Ministry.

Service Item Id: 445415b6708e4defbabeef08adbaf036

Copyright Text: Copyright Government of Alberta

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 1733371.0

Max Scale: 216672.0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 170844.32959999982
YMin: 5425575.4867
XMax: 865133.5149999997
YMax: 6659344.34
Spatial Reference: 102184  (3400)  LatestVCSWkid(0)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [0, 0, 0, 0]
Outline:
Style: esriSLSSolid
Color: [102, 153, 205, 255]
Width: 12
Label: N/A
Description: N/A
Transparency: 10
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: true
Supports Sql Format: false
Supports Query Analytic: true
Supports Query With Current User: true

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: Object ID )
• HUC_2 ( type: esriFieldTypeString, alias: Hydrologic Unit Code 2, length: 12 )
• NAME ( type: esriFieldTypeString, alias: Name, length: 36 )
• SHAPE ( type: esriFieldTypeGeometry, alias: Shape )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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