Name: Water Availability Basins
Display Field: basin_name
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: Water availability is the amount of water that can be appropriated from a given point on a given stream for new out-of-stream consumptive uses. It is obtained from the natural stream flow by subtracting existing in-stream flow requirements and out-of-stream consumptive uses. For a detailed description of the Water Availability Report program and the methodology used to develop it, you may review the report titled Determining Water Availability in Oregon. For additional information, please visit Water Availability Report System.
Ideally a water availability calculation would be done for every watershed associated with a point of diversion or an in-stream water right. A watershed, in this case, includes all lands draining to the stream upstream of the point of diversion or the downstream end of an in-stream water right reach. Because there are so many water rights, the ideal approach is impractical.
The practical alternative is to limit the number of watersheds for which water availability is calculated. The delineation of these watersheds depends on the location of in-stream demands and on the physiography of affected streams. Generally watersheds are defined above the mouths of significant tributaries, on main channels above significant tributaries and for all in-stream demands.
These delineated watersheds are referred to as Water Availability Basins (WABs). Water availability is estimated at the downstream end, or pour point, of each WAB. Large drainage areas( e.g. the Rogue and Umpqua basins) are broken into a number of WABs. The WABs are nested, each upstream WAB being included in a WAB downstream. For water to be available in a given WAB, it must be available in all the other watersheds in which it is nested.
Definition Expression: N/A
Copyright Text: Oregon Water Resources Department
Default Visibility: true
MaxRecordCount: 1000
Supported Query Formats: JSON, AMF, geoJSON
Min Scale: 7000000
Max Scale: 3000
Effective Min Scale: 500000
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: -1.38645096268E7
YMin: 5031224.077
XMax: -1.28699054254E7
YMax: 5814844.512800001
Spatial Reference: 102100
(3857)
Drawing Info:
Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [0, 0, 0, 0]
Outline:
Style: esriSLSSolid
Color: [168, 56, 0, 255]
Width: 1
Label: Water Availability Basins
Description:
Transparency: 0
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
HasZ: false
HasM: false
Has Attachments: false
HTML Popup Type: esriServerHTMLPopupTypeNone
Type ID Field: null
Fields:
-
OBJECTID
(
type: esriFieldTypeOID
, alias: OBJECTID
)
-
SHAPE
(
type: esriFieldTypeGeometry
, alias: SHAPE
)
-
wab_long
(
type: esriFieldTypeString
, alias: WA_
, length: 32
)
-
SHAPE_Length
(
type: esriFieldTypeDouble
, alias: SHAPE_Length
)
-
SHAPE_Area
(
type: esriFieldTypeDouble
, alias: SHAPE_Area
)
-
basin_name
(
type: esriFieldTypeString
, alias: basin_name
, length: 16
)
-
watershedid
(
type: esriFieldTypeInteger
, alias: watershedid
)
-
watershed_order
(
type: esriFieldTypeInteger
, alias: watershed_order
)
-
watershed_nbr
(
type: esriFieldTypeInteger
, alias: watershed_nbr
)
-
wab_watershed_nbr
(
type: esriFieldTypeInteger
, alias: wab_watershed_nbr
)
-
basin_nbr
(
type: esriFieldTypeSmallInteger
, alias: basin_nbr
)
-
basin_wab
(
type: esriFieldTypeString
, alias: basin_wab
, length: 34
)
-
wab_name
(
type: esriFieldTypeString
, alias: wab_name
, length: 64
)
Supported Operations:
Query
Generate Renderer
Return Updates
Iteminfo
Thumbnail
Metadata