Hydrologic Unit Boundaries for Oregon, Washington, and California
Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information
Identification Information
Section Index
Citation:
Citation Information:
Originator: Regional Ecosystem Office
Publication Date: 2002
Title: Hydrologic Unit Boundaries for Oregon, Washington, and California
Geospatial Data Presentation Form: vector digital data
Publication Information:
Publication Place: Portland, Oregon
Publisher: Regional Ecosystem Office
Online Linkage: www.reo.gov
Description:
Abstract:
This geospatial dataset is a hydrologic boundary layer containing nested hydrologic unit boundaries. The standard allows for mapping to the (16-digit) level. The dataset was developed by delineating the boundary lines on 1:24,000 base maps and digitizing the delineated lines. Digital Elevation Model data was used in part of the process to establish preliminary boundaries.
This data set consists of geo-referenced digital map data and associated attributes. The hydrologic unit code attached to each delineated polygon is linked to the attribute data, which can contain information on area in acres, non-contributing area, state(s) the HU falls within, name for 7th and 8th level HU, 5th and 6th level code for downstream hydrologic unit, and hydrologic unit modifications. Each line has attributes that describe the HU level (1-8), originating source for that line and a metadata ID number that links the line to its associated metadata file.
Purpose:
The watershed and subwatershed hydrologic unit boundaries provide a uniquely identified and uniform method of subdividing large drainage areas. These smaller sized hydrologic units (up to 250,000 acres) are useful in many programs supported by the NRCS and others.
This data set is intended as a tool for water-resource management and planning activities, particularly for site-specific and localized studies, which require the amount of detail provided by a large-scale map.
Supplemental Information:
For additional information please refer to the following documents. ftp://ftp.or.blm.gov/gisweb/metadata/Data_Dict_Copy_from_Userguide.doc ftp://ftp.or.blm.gov/gisweb/metadata/HU_standards_061201.doc The following procedures were used to produce this data set:Hydrologic units were incorporated into this dataset from an aggregate of pre-existing HUs. Some new HU boundaries were delineated using flow lines and basins computed from 10- and 30-meter horizontal resolution Digital Elevation data based on flow derived from the elevation grid to determine potential pour points. The DEM data is derived from hypsography represented on 1:24000 USGS topographic quadrangles. Additional hydrography data was used as a template to control pourpoint locations for the delineated HUs.
Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: 2002
Time of Day: Unknown
Currentness Reference: Publication date
Status:
Progress: Complete
Maintenance and Update Frequency: As needed
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -124.75
East Bounding Coordinate: -116.375
North Bounding Coordinate: 49
South Bounding Coordinate: 38
Keywords:
Theme:
Theme Keyword Thesaurus: None
Theme Keyword: Hydrologic units
Theme Keyword: Watershed Boundaries
Theme Keyword: Subwatershed Boundaries
Place:
Place Keyword Thesaurus: Counties and County Equivalents of the United States and the District of Columbia (FIPS Pub 6-3)
Place Keyword: California
Place Keyword: Idaho
Place Keyword: Nevada
Place Keyword: Oregon
Place Keyword: Washington
Access Constraints: None
Use Constraints:
The U.S. Department of Agriculture, Natural Resources Conservation Service, should be acknowledged as the data source in products derived from these data. These data should not be used at scales greater than 1:24,000.
This is public information and may be interpreted by organizations, agencies, units of government, or others based on needs; however they are responsible for the appropriate application of the data. Federal, state, or local regulatory bodies are not to reassign to the Natural Resources Conservation Service any authority for the decisions they make. The Natural Resources Conservation Service will not perform any evaluations of these maps or purposes related solely to State or local regulatory programs. Photographic or digital enlargement of these maps to scales greater than that at which they were originally delineated can cause misrepresentation of the data. If enlarged, the maps will not include the fine detail that would be appropriate for mapping at the small scale. Digital data files are periodically updated. Files are dated, and users are responsible for obtaining the latest version of the data.
Contacts:
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Regional Ecosystem Office
Contact Person: Dale Guenther
Contact Address:
Address Type: mailing address
Address: P.O. Box 3623
City: Portland
State or Province: OR
Postal Code: 97208-3263
Country: USA
Contact Voice Telephone: 503-808-2188
Contact Facsimile Telephone: 503-808-2163
Native Data Set Environment: Windows_NT, 4.0, Intel ARC/INFO version 7.1.2
Data Quality Information
Section Index
Attribute Accuracy:
Attribute Accuracy Report:
Polygon identifiers are manually checked with the original base map using the attribute file. Verification on polygon identification continuity on each side of a neatline is done visually on the screen as adjacent quad representations are assembled into larger area data layers.
Logical Consistency Report:
Certain node/geometry and topology (GT) polygon/chain relationships are collected or generated to satisfy topological requirements. (The GT-polygon corresponds to a hydrologic unit or a portion of a hydrologic unit at the edge of a Quadrangle sheet.) Some of these requirements include: chains must begin and end at nodes, left and right GT-polygons are defined for each chain element and are consistent throughout, and the chains representing the limits of the file (neatline) are free of gaps. The tests of logical consistency are performed using vendor software. The neatline is generated by connecting the explicitly entered four corners of the digital file. All data outside the enclosed region are ignored and all data crossing geographically straight lines are clipped at the neatline. Neatline straightening aligns the digitized edges of the digital data with the generated neatline (i.e., with the longitude/latitude lines in geographic coordinates). All internal polygons are tested for closure with vendor software and are checked on hard copy plots. All data are checked for common boundary lines (i.e., adjacent polygons with the same label). Quadrangles are edge matched within the Sub-basin area and edge locations generally do not deviate from centerline more than 0.01 inches.
Completeness Report: Data exists for Oregon, Washington , and parts of California.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report:
The accuracy of these maps is generally based on the contour information or DEM data available for the base maps. Such data may be supplemented with site visits to locate ridge lines for hydrologic unit boundaries in flat terrain areas, changes in drainage patterns due to man's activities. The differences in positional accuracy between the hydrologic unit boundaries and their digitized map locations is unknown.
Hydrologic unit boundaries generally were digitized within 0.01 inches of their locations on the digitizing source. The digital map elements are edge matched against the data for the adjacent Quadrangle. Edge match locations generally do not deviate from centerline to centerline by more than 0.01 inches.
Lineage:
Source Information:
Source Citation:
Citation Information:
Originator: OR BLM
Publication Date: 19980731
Title: Digital Elevation Model Collection (30 meter) Oregon
Source Time Period of Content:
Source Citation Abbreviation: DEM30
Source Contribution: Line reference
Source Information:
Source Citation:
Citation Information:
Originator: OR BLM
Publication Date: 19980731
Title: Digital Elevation Model Collection (10 meter) Oregon
Online Linkage: http://earthexplorer.usgs.gov
Source Scale Denominator: 24000
Type of Source Media: online
Source Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: Unknown
Time of Day: Unknown
Source Currentness Reference: ground condition
Source Citation Abbreviation: DEM10
Source Contribution: Line reference
Source Information:
Source Citation:
Citation Information:
Originator: USGS
Publication Date: Unknown
Publication Time: Unknown
Title: Digital Line Graphs
Source Time Period of Content:
Source Citation Abbreviation: DLG
Source Contribution: Lines
Process Step:
Process Description: Hydrologic units redelineated
Source Used Citation Abbreviation: DEM30
Source Used Citation Abbreviation: DEM10
Source Used Citation Abbreviation: DLG
Process Date: 2002
Process Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Titan Geospatial
Contact TDD/TTY Telephone: 503-794-1344
Process Step:
Process Description: Metadata imported.
Cloud Cover: 0
Spatial Data Organization Information
Section Index
Indirect Spatial Reference: Oregon, Washington, California, Idaho
Direct Spatial Reference Method: Vector
Point and Vector Object Information:
SDTS Terms Description:
SDTS Point and Vector Object Type: Complete chain
Point and Vector Object Count: 2045395
SDTS Terms Description:
SDTS Point and Vector Object Type: Label point
Point and Vector Object Count: 6198
SDTS Terms Description:
SDTS Point and Vector Object Type: GT-polygon composed of chains
Point and Vector Object Count: 6198
SDTS Terms Description:
SDTS Point and Vector Object Type: Point
Point and Vector Object Count: 1020
SDTS Terms Description:
SDTS Point and Vector Object Type: Composite object
Point and Vector Object Count: 3
SDTS Terms Description:
SDTS Point and Vector Object Type: Composite object
Point and Vector Object Count: 17
SDTS Terms Description:
SDTS Point and Vector Object Type: Composite object
Point and Vector Object Count: 25
SDTS Terms Description:
SDTS Point and Vector Object Type: Composite object
Point and Vector Object Count: 200
SDTS Terms Description:
SDTS Point and Vector Object Type: Composite object
Point and Vector Object Count: 1158
SDTS Terms Description:
SDTS Point and Vector Object Type: Composite object
Point and Vector Object Count: 5859
SDTS Terms Description:
SDTS Point and Vector Object Type: Composite object
Point and Vector Object Count: 435
Spatial Reference Information
Section Index
Horizontal Coordinate System Definition:
Planar:
Grid Coordinate System:
Grid Coordinate System Name: Universal Transverse Mercator 1927
Universal Transverse Mercator:
UTM Zone Number: 10
Transverse Mercator:
Scale Factor at Central Meridian: 0.9996
Longitude of Central Meridian: -123
Latitude of Projection Origin: 0
False Easting: 500000
False Northing: 0
Planar Coordinate Information:
Planar Coordinate Encoding Method: Coordinate Pair
Coordinate Representation:
Abscissa Resolution: 0.61
Ordinate Resolution: 0.61
Planar Distance Units: Meters
Geodetic Model:
Horizontal Datum Name: North American Datum of 1927
Ellipsoid Name: Clarke 1866
Semi-major Axis: 6378206
Denominator of Flattening Ratio: 294.9786982
Entity and Attribute Information
Section Index
Detailed Description:
Entity Type:
Entity Type Label: WATERSHED.PAT
Entity Type Definition: Polygon attributes for the hydrologic units
Entity Type Definition Source: various
Attribute:
Attribute Label: ACRES
Attribute Definition: Area of polygon in GIS acres
Attribute Definition Source: Computed
Attribute:
Attribute Label: BASIN
Attribute Definition: 3rd Field Hydrologic Unit Code
Attribute Definition Source: Based on data from HUC_NUM item
Attribute:
Attribute Label: BASIN_NAME
Attribute Definition: 3rd Field Hydrologic Unit Naming Protocol
Attribute Definition Source: NRCS
Attribute Domain Values:
Unrepresentable Domain: Whole numbers that are automatically generated.
Attribute:
Attribute Label: CATCHMENT
Attribute Definition: 7th Field Hydrologic Unit Code
Attribute Definition Source: Based on data from HUC_NUM item
Attribute:
Attribute Label: CATCHMENT_NAME
Attribute Definition: 7th Field Hydrologic Unit Naming Protocol
Attribute Definition Source: NRCS
Attribute:
Attribute Label: COMMENT
Attribute Definition: Any additional information that pertains to the hydrologic unit's history or general characteristics that cannot be adequately described in previous items.
Attribute Definition Source: Various
Attribute:
Attribute Label: DS_HUC5
Attribute Definition:
Fifth Level Downstream HUC- This item represents the hydrologic unit code of the 5th level hydrologic unit receiving the majority of the downstream flow. Outlets created by ditching or other artificial drainage are not to be considered.
Attribute Definition Source: NRCS
Attribute:
Attribute Label: DS_HUC6
Attribute Definition:
Sixth Level Downstream Hydrologic Unit Code- This item represents the hydrologic unit code of the 6th level hydrologic unit receiving the majority of the downstream flow. Outlets created by ditching or other artificial drainage are not to be considered.
Attribute Definition Source: NRCS
Attribute:
Attribute Label: EIGHTH_FIELD
Attribute Definition: 2-digit identifier
Attribute Definition Source: Based on data from HUC_NUM item
Attribute:
Attribute Label: FIFTH_FIELD
Attribute Definition: 2-digit identifier
Attribute Definition Source: Based on data from HUC_NUM item
Attribute:
Attribute Label: FIRST_FIELD
Attribute Definition: 2-digit identifier
Attribute Definition Source: Based on data from HUC_NUM item
Attribute:
Attribute Label: FOURTH_FIELD
Attribute Definition: 2-digit identifier
Attribute Definition Source: Based on data from HUC_NUM item
Attribute:
Attribute Label: HUC_MOD
Attribute Definition:
Hydrologic Unit Modifications- This item should contain information about hydrologic unit modifications to natural overland flow (that affect boundary) unique to the 5th or 6th field level unit delineated in an area of interest. This may include information on the type of structure, date of construction or other features that may influence surface water flow. In the attribute field, identify from most significant to least significant modification(s).
Attribute Definition Source: NRCS
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: SC
Enumerated Domain Value Definition: Stormwater Canal
Enumerated Domain:
Enumerated Domain Value: BC
Enumerated Domain Value Definition: Barge Canal
Enumerated Domain:
Enumerated Domain Value: PD
Enumerated Domain Value Definition: Pipe Diversion
Enumerated Domain:
Enumerated Domain Value: KA
Enumerated Domain Value Definition: Karst
Enumerated Domain:
Enumerated Domain Value: OC
Enumerated Domain Value Definition: Overflow Channel
Enumerated Domain:
Enumerated Domain Value: ID
Enumerated Domain Value Definition: Irrigation Ditch
Enumerated Domain:
Enumerated Domain Value: SD
Enumerated Domain Value Definition: Stormwater Ditch
Enumerated Domain:
Enumerated Domain Value: CD
Enumerated Domain Value Definition: Channel Diversion
Enumerated Domain:
Enumerated Domain Value: LE
Enumerated Domain Value Definition: Levee
Enumerated Domain:
Enumerated Domain Value: OT
Enumerated Domain Value Definition: Other
Enumerated Domain:
Enumerated Domain Value: IT
Enumerated Domain Value Definition: Interbasin Transfer
Enumerated Domain:
Enumerated Domain Value: CB
Enumerated Domain Value Definition: Closed Basin
Enumerated Domain:
Enumerated Domain Value: NC
Enumerated Domain Value Definition: Non-Contributing
Enumerated Domain:
Enumerated Domain Value: NM
Enumerated Domain Value Definition: No Modifications
Attribute:
Attribute Label: HUC_NUM
Attribute Definition:
Hydrologic Unit Field Code- In order to identify an area, be it 1st through Nth Levels, each is assigned the combination of Levels which comprise it. Starting at the uppermost end of the drainage, the first 7th level hydrologic unit would be assigned the code 01 for the 13th and 14th digits. When combined with the 6th level code, the full Hydrologic Unit Code in the above example would be 17100203020901XX.
Attribute:
Attribute Label: HUC_TYPE
Attribute Definition:
Hydrologic Unit Types-This item allows users to query hydrologic units based on composition type. Information is presented as a running string where each individual character of the string represents the composition type of a particular unit (e.g.- character number 1 represents the composition type of a 1st level unit, character number 2 represents the composition type of a 2nd level unit, etc). Where a hydrologic unit level has not been delineated or the type has yet to be classified, an X will serve as a placeholder. This is an optional item that may be populated for 1st through 8th level units where deemed necessary.
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: T
Enumerated Domain Value Definition: True, pure, or ""classic"" hydrologic units are land areas having all the surface drainage within its boundary converging at a single point.
Enumerated Domain:
Enumerated Domain Value: C
Enumerated Domain Value Definition:
Composite hydrologic units, or remnant areas are drainage areas typically formed as the residual areas after delineation of classic watersheds. The most common example of a remnant area is the small triangular wedge between the boundaries of adjacent hydrologic units flowing into the same side of another stream.
Enumerated Domain:
Enumerated Domain Value: F
Enumerated Domain Value Definition: Frontal hydrologic units are areas that include multiple, non-convergent rivers. Frontal units would most likely be related to hydrologic units feeding into the Pacific Ocean or Columbia River.
Enumerated Domain:
Enumerated Domain Value: X
Enumerated Domain Value Definition: Unclassified hydrologic units
Enumerated Domain:
Enumerated Domain Value: S
Enumerated Domain:
Enumerated Domain Value: R
Attribute:
Attribute Label: NCONTRIB_DA
Attribute Definition:
Drainage areas that do not flow towards the outlet are considered non-contributing. Such areas may be due to glaciated plains (potholes), enclosed basins, karst topography, playas, cirques, depression lakes, dry lakebeds, or similar landforms.
Attribute Definition Source: This item is based on the national interagency protocol.
Attribute:
Attribute Label: OLD_HUCNUM
Attribute Definition: Historic Hydrologic Unit Number
Attribute:
Attribute Label: REGION
Attribute Definition: 1st Field Hydrologic Unit Code
Attribute Definition Source: Based on data from HUC_NUM item
Attribute:
Attribute Label: REGION_NAME
Attribute Definition: 1st Field Hydrologic Unit Naming Protocol
Attribute Definition Source: NRCS
Attribute Domain Values:
Unrepresentable Domain: Whole numbers that are automatically generated.
Attribute:
Attribute Label: SECOND_FIELD
Attribute Definition: 2-digit identifier
Attribute Definition Source: Based on data from HUC_NUM item
Attribute:
Attribute Label: SEVENTH_FIELD
Attribute Definition: 2-digit identifier
Attribute Definition Source: Based on data from HUC_NUM item
Attribute:
Attribute Label: SIXTH_FIELD
Attribute Definition: 2-digit identifier
Attribute Definition Source: Based on data from HUC_NUM item
Attribute:
Attribute Label: STATES
Attribute Definition: This item should include the names of all states that a hydrologic unit falls within. A 2-digit postal code abbreviation with a coma separating each state is used.
Attribute Definition Source: NRCS
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: OR
Enumerated Domain Value Definition: Oregon
Enumerated Domain:
Enumerated Domain Value: CA
Enumerated Domain Value Definition: California
Enumerated Domain:
Enumerated Domain Value: NV
Enumerated Domain Value Definition: Nevada
Enumerated Domain:
Enumerated Domain Value: ID
Enumerated Domain Value Definition: Idaho
Enumerated Domain:
Enumerated Domain Value: WA
Enumerated Domain Value Definition: Washington
Attribute:
Attribute Label: SUBBASIN
Attribute Definition: 4th Field Hydrologic Unit Code
Attribute Definition Source: Based on data from HUC_NUM item
Attribute:
Attribute Label: SUBBASIN_NAME
Attribute Definition: 4th Field Hydrologic Unit Naming Protocol
Attribute Definition Source: NRCS
Attribute:
Attribute Label: SUBCATCH
Attribute Definition: 8th Field Hydrologic Unit Code
Attribute Definition Source: Based on data from HUC_NUM item
Attribute:
Attribute Label: SUBCATCH_NAME
Attribute Definition: 8th Field Hydrologic Unit Naming Protocol
Attribute Definition Source: NRCS
Attribute:
Attribute Label: SUBREGION
Attribute Definition: 2nd Field Hydrologic Unit Code
Attribute Definition Source: Based on data from HUC_NUM item
Attribute:
Attribute Label: SUBREGION_NAME
Attribute Definition: 2nd Field Hydrologic Unit Naming Protocol
Attribute Definition Source: NRCS
Attribute:
Attribute Label: SUBWAT
Attribute Definition: 6th Field Hydrologic Unit Code
Attribute Definition Source: Based on data from HUC_NUM item
Attribute:
Attribute Label: SUBWAT_NAME
Attribute Definition: 6th Field Hydrologic Unit Naming Protocol
Attribute Definition Source: NRCS
Attribute:
Attribute Label: THIRD_FIELD
Attribute Definition: 2-digit identifier
Attribute Definition Source: Based on data from HUC_NUM item
Attribute:
Attribute Label: WATERSHED
Attribute Definition: 5th Field Hydrologic Unit Code
Attribute Definition Source: Based on data from HUC_NUM item
Attribute:
Attribute Label: WATERSHED_NAME
Attribute Definition: 5th Field Hydrologic Unit Naming Protocol
Attribute Definition Source: NRCS
Detailed Description:
Entity Type:
Entity Type Label: WATERSHED.AAT
Entity Type Definition: Arc attributes as it relates to the hydrologic units
Entity Type Definition Source: various
Attribute:
Attribute Label: COMMENT
Attribute Definition: This item may include any additional information that pertains to the hydrologic units boundary line's history or general characteristics that cannot be adequately described in previous items.
Attribute Definition Source: Various
Attribute:
Attribute Label: HUC_LEVEL
Attribute Definition: This item is used to identify the hydrologic unit groupings a given line segment belongs to.
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 1
Enumerated Domain Value Definition: 1st Level Unit Boundary
Enumerated Domain:
Enumerated Domain Value: 2
Enumerated Domain Value Definition: 2nd Level Unit Boundary, NOT Shared with a 1st Level Unit Boundary
Enumerated Domain:
Enumerated Domain Value: 3
Enumerated Domain Value Definition: 3rd Level Unit Boundary, NOT Shared with 1st or 2nd Level Unit Boundary
Enumerated Domain:
Enumerated Domain Value: 4
Enumerated Domain Value Definition: 4th Level Unit Boundary, NOT Shared with 1st - 3rd Level Unit Boundary
Enumerated Domain:
Enumerated Domain Value: 5
Enumerated Domain Value Definition: 5th Level Unit Boundary, NOT Shared with 1st - 4th Level Unit Boundary
Enumerated Domain:
Enumerated Domain Value: 6
Enumerated Domain Value Definition: 6th Level Unit Boundary, NOT Shared with 1st - 5th Level Unit Boundary
Enumerated Domain:
Enumerated Domain Value: 7
Enumerated Domain Value Definition: 7th Level Unit Boundary, NOT Shared with 1st - 6th Level Unit Boundary
Enumerated Domain:
Enumerated Domain Value: 8
Enumerated Domain Value Definition: 8th Level Unit Boundary, NOT Shared with 1st - 7th Level Unit Boundary
Attribute:
Attribute Label: LINEDATE
Attribute Definition: Date that the last line edit was performed.
Attribute Definition Source: Various
Attribute:
Attribute Label: LINEORG
Attribute Definition: The organization who performed the last spatial edit to a given line segment.
Attribute:
Attribute Label: LINESOURCE
Attribute Definition: Information related to the original spatial data source from which the boundary line was derived.
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: DRG24
Enumerated Domain Value Definition: USGS 1:24,000 Digital Raster Graphics (DRG)
Enumerated Domain:
Enumerated Domain Value: TVC23
Enumerated Domain Value Definition: USGS 1:24,000 Tagged Vector Contours (TVC)
Enumerated Domain:
Enumerated Domain Value: DEM10
Enumerated Domain Value Definition: Derived from 10 Meter Digital Elevation Model (Surface modeling)
Enumerated Domain:
Enumerated Domain Value: DEM30
Enumerated Domain Value Definition: Derived from 30 Meter Digital Elevation Model (Surface modeling)
Enumerated Domain:
Enumerated Domain Value: DLG
Enumerated Domain Value Definition: USGS Digital Line Graph
Enumerated Domain:
Enumerated Domain Value: UNK
Enumerated Domain Value Definition: Unknown
Attribute:
Attribute Label: LINEVER
Attribute Definition:
Line Edit Verification- Indicates which level in a series of quality control checks the hydrologic boundary has undergone prior to being accepted as part of the finalized dataset. * Only verification levels of 4 and 5 will be included in the regional dataset.
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 1
Enumerated Domain Value Definition: Initial Draft Line
Enumerated Domain:
Enumerated Domain Value: 2
Enumerated Domain Value Definition: Line accuracy certified by local hydrologist
Enumerated Domain:
Enumerated Domain Value: 3
Enumerated Domain Value Definition: Line accuracy certified by ALL local participating organizations
Enumerated Domain:
Enumerated Domain Value: 4
Enumerated Domain Value Definition: Line accuracy certified by Pacific Northwest stewards
Enumerated Domain:
Enumerated Domain Value: 5
Enumerated Domain Value Definition: Line accuracy certified by National stewards
Attribute:
Attribute Label: METADATA_ID
Attribute Definition: Metadata ID is a code that identifies which metadata file applies to the arc.
Detailed Description:
Entity Type:
Entity Type Label: reohucv1.pathuc1
Attribute:
Attribute:
Attribute Label: AREA
Attribute Definition: Area of feature in internal units squared.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute:
Attribute Label: FID
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: FIRST_FIELD
Attribute:
Attribute:
Attribute:
Attribute Label: HUC_TYPE
Attribute:
Attribute Label: HUC1#
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: HUC1-ID
Attribute Definition: User-defined feature number.
Attribute Definition Source: ESRI
Attribute:
Attribute Label: NCONTRIB_DA
Attribute:
Attribute Label: PERIMETER
Attribute Definition: Perimeter of feature in internal units.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute:
Attribute Label: REGION_NAME
Attribute:
Attribute Label: Shape
Attribute Definition: Feature geometry.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Coordinates defining the features.
Attribute:
Detailed Description:
Entity Type:
Entity Type Label: reohucv1.pathuc2
Attribute:
Attribute:
Attribute Label: AREA
Attribute Definition: Area of feature in internal units squared.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute:
Attribute Label: FID
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: FIRST_FIELD
Attribute:
Attribute:
Attribute:
Attribute Label: HUC_TYPE
Attribute:
Attribute Label: HUC2#
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: HUC2-ID
Attribute Definition: User-defined feature number.
Attribute Definition Source: ESRI
Attribute:
Attribute Label: NCONTRIB_DA
Attribute:
Attribute Label: PERIMETER
Attribute Definition: Perimeter of feature in internal units.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute:
Attribute Label: REGION_NAME
Attribute:
Attribute Label: SECOND_FIELD
Attribute:
Attribute Label: Shape
Attribute Definition: Feature geometry.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Coordinates defining the features.
Attribute:
Attribute:
Attribute Label: SUBREGION
Attribute:
Attribute Label: SUBREGION_NAME
Detailed Description:
Entity Type:
Entity Type Label: reohucv1.pathuc3
Attribute:
Attribute:
Attribute Label: AREA
Attribute Definition: Area of feature in internal units squared.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute:
Attribute Label: BASIN_NAME
Attribute:
Attribute:
Attribute Label: FID
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: FIRST_FIELD
Attribute:
Attribute:
Attribute:
Attribute Label: HUC_TYPE
Attribute:
Attribute Label: HUC3#
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: HUC3-ID
Attribute Definition: User-defined feature number.
Attribute Definition Source: ESRI
Attribute:
Attribute Label: NCONTRIB_DA
Attribute:
Attribute Label: PERIMETER
Attribute Definition: Perimeter of feature in internal units.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute:
Attribute Label: REGION_NAME
Attribute:
Attribute Label: SECOND_FIELD
Attribute:
Attribute Label: Shape
Attribute Definition: Feature geometry.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Coordinates defining the features.
Attribute:
Attribute:
Attribute Label: SUBREGION
Attribute:
Attribute Label: SUBREGION_NAME
Attribute:
Attribute Label: THIRD_FIELD
Detailed Description:
Entity Type:
Entity Type Label: reohucv1.pathuc4
Attribute:
Attribute:
Attribute Label: AREA
Attribute Definition: Area of feature in internal units squared.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute:
Attribute Label: BASIN_NAME
Attribute:
Attribute:
Attribute Label: FID
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: FIRST_FIELD
Attribute:
Attribute Label: FOURTH_FIELD
Attribute:
Attribute:
Attribute:
Attribute Label: HUC_TYPE
Attribute:
Attribute Label: HUC4#
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: HUC4-ID
Attribute Definition: User-defined feature number.
Attribute Definition Source: ESRI
Attribute:
Attribute Label: NONCONTRIB_DA
Attribute:
Attribute Label: PERIMETER
Attribute Definition: Perimeter of feature in internal units.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute:
Attribute Label: REGION_NAME
Attribute:
Attribute Label: SECOND_FIELD
Attribute:
Attribute Label: Shape
Attribute Definition: Feature geometry.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Coordinates defining the features.
Attribute:
Attribute:
Attribute Label: SUBBASIN
Attribute:
Attribute Label: SUBBASIN_NAME
Attribute:
Attribute Label: SUBREGION
Attribute:
Attribute Label: SUBREGION_NAME
Attribute:
Attribute Label: THIRD_FIELD
Detailed Description:
Entity Type:
Entity Type Label: reohucv1.pathuc5
Attribute:
Attribute:
Attribute Label: AREA
Attribute Definition: Area of feature in internal units squared.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute:
Attribute Label: BASIN_NAME
Attribute:
Attribute:
Attribute:
Attribute Label: FID
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: FIFTH_FIELD
Attribute:
Attribute Label: FIRST_FIELD
Attribute:
Attribute Label: FOURTH_FIELD
Attribute:
Attribute:
Attribute:
Attribute Label: HUC_TYPE
Attribute:
Attribute Label: HUC5#
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: HUC5-ID
Attribute Definition: User-defined feature number.
Attribute Definition Source: ESRI
Attribute:
Attribute Label: NCONTRIB_DA
Attribute:
Attribute Label: PERIMETER
Attribute Definition: Perimeter of feature in internal units.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute:
Attribute Label: REGION_NAME
Attribute:
Attribute Label: SECOND_FIELD
Attribute:
Attribute Label: Shape
Attribute Definition: Feature geometry.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Coordinates defining the features.
Attribute:
Attribute:
Attribute Label: SUBBASIN
Attribute:
Attribute Label: SUBBASIN_NAME
Attribute:
Attribute Label: SUBREGION
Attribute:
Attribute Label: SUBREGION_NAME
Attribute:
Attribute Label: THIRD_FIELD
Attribute:
Attribute Label: WATERSHED
Attribute:
Attribute Label: WATERSHED_NAME
Detailed Description:
Entity Type:
Entity Type Label: reohucv1.pathuc6
Attribute:
Attribute:
Attribute Label: AREA
Attribute Definition: Area of feature in internal units squared.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute:
Attribute Label: BASIN_NAME
Attribute:
Attribute:
Attribute:
Attribute:
Attribute Label: FID
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: FIFTH_FIELD
Attribute:
Attribute Label: FIRST_FIELD
Attribute:
Attribute Label: FOURTH_FIELD
Attribute:
Attribute:
Attribute:
Attribute Label: HUC_TYPE
Attribute:
Attribute Label: HUC6#
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: HUC6-ID
Attribute Definition: User-defined feature number.
Attribute Definition Source: ESRI
Attribute:
Attribute Label: NCONTRIB_DA
Attribute:
Attribute Label: OLD_HUCNUM
Attribute:
Attribute Label: PERIMETER
Attribute Definition: Perimeter of feature in internal units.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute:
Attribute Label: REGION_NAME
Attribute:
Attribute Label: SECOND_FIELD
Attribute:
Attribute Label: Shape
Attribute Definition: Feature geometry.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Coordinates defining the features.
Attribute:
Attribute Label: SIXTH_FIELD
Attribute:
Attribute:
Attribute Label: SUBBASIN
Attribute:
Attribute Label: SUBBASIN_NAME
Attribute:
Attribute Label: SUBREGION
Attribute:
Attribute Label: SUBREGION_NAME
Attribute:
Attribute:
Attribute Label: SUBWAT_NAME
Attribute:
Attribute Label: THIRD_FIELD
Attribute:
Attribute Label: WATERSHED
Attribute:
Attribute Label: WATERSHED_NAME
Detailed Description:
Entity Type:
Entity Type Label: reohucv1.pathuc7
Attribute:
Attribute:
Attribute Label: AREA
Attribute Definition: Area of feature in internal units squared.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute:
Attribute Label: BASIN_NAME
Attribute:
Attribute Label: CATCHMENT
Attribute:
Attribute Label: CATCHMENT_NAME
Attribute:
Attribute:
Attribute:
Attribute:
Attribute Label: FID
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: FIFTH_FIELD
Attribute:
Attribute Label: FIRST_FIELD
Attribute:
Attribute Label: FOURTH_FIELD
Attribute:
Attribute:
Attribute:
Attribute Label: HUC_TYPE
Attribute:
Attribute Label: HUC7#
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: HUC7-ID
Attribute Definition: User-defined feature number.
Attribute Definition Source: ESRI
Attribute:
Attribute Label: NCONTRIB_DA
Attribute:
Attribute Label: OLD_HUCNUM
Attribute:
Attribute Label: PERIMETER
Attribute Definition: Perimeter of feature in internal units.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute:
Attribute Label: REGION_NAME
Attribute:
Attribute Label: SECOND_FIELD
Attribute:
Attribute Label: SEVENTH_FIELD
Attribute:
Attribute Label: Shape
Attribute Definition: Feature geometry.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Coordinates defining the features.
Attribute:
Attribute Label: SIXTH_FIELD
Attribute:
Attribute:
Attribute Label: SUBBASIN
Attribute:
Attribute Label: SUBBASIN_NAME
Attribute:
Attribute Label: SUBREGION
Attribute:
Attribute Label: SUBREGION_NAME
Attribute:
Attribute:
Attribute Label: SUBWAT_NAME
Attribute:
Attribute Label: THIRD_FIELD
Attribute:
Attribute Label: WATERSHED
Attribute:
Attribute Label: WATERSHED_NAME
Overview Description:
Entity and Attribute Overview:
The hydrologic Unit Boundaries coverage contains attributes for polygons, arcs and seven Arc/Info regions. Hydrologic Unit delineations are closed polygons that encompass all area draining toward the lowest point (called pour point) in the polygon. Because of nominal sizes for the different hydrologic unit level: Watershed (40,000 to 250,000 acres) and Subwatershed (generally 10,000 to 40,000 acres), some polygons do not include all areas up to the drainage divide but all areas to one or more other upstream hydrologic units. A unique hydrologic unit code is used to identify each hydrologic unit. The hydrologic unit codes start with the 8-digit Sub-basin (sub-basin) number that contains the Watershed. Likewise the Subwatershed hydrologic unit codes start with the 10-digit Watershed number that contains the Subwatershed. Attributes associated with a hydrologic unit code includes: ACRES, HUC_NUM, HUC_TYPE, REGION_NAME, SUBREGION_NAME, BASIN_NAME, SUBBASIN_NAME, WATERSHED_NAME, SUBWAT_NAME, CATCHMENT_NAME, SUBCATCH_NAME, OLD_HUCNUM, STATES, NCONTRIB_DA, DS_HUC5, DS_HUC6, HUC_MOD, COMMENT, REGION, SUBREGION, BASIN, SUBBASIN, WATERSHED, SUBWAT, CATCHMENT, SUBCATCH, FIRST_FIELD, SECOND_FIELD, THIRD_FIELD, FOURTH_FIELD, FIFTH_FIELD, SIXTH_FIELD, SEVENTH_FIELD, EIGHTH_FIELD, HUC_LEVEL, LINESOURCE, LINEVER, LINEDATE, LINEORG, METADATA_ID, COMMENT
Entity and Attribute Detail Citation: Pacific Northwest Regional Hydrologic Unit Boundary Database Attribute Standards ""URL"
Distribution Information
Section Index
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: Regional Ecosystem Office
Contact Person: Dale Guenther
Contact Address:
Address Type: mailing address
Address: P.O. Box 3623
City: Portland
State or Province: OR
Postal Code: 97208-3263
Country: USA
Contact Voice Telephone: 503-808-2188
Contact Facsimile Telephone: 503-808-2163
Resource Description: Downloadable Data
Distribution Liability: Contact Distributor
Standard Order Process:
Fees: Contact Distributor
Ordering Instructions: Contact Distributor
Turnaround: Contact Distributor
Custom Order Process: Contact Distributor
Metadata Reference Information
Section Index
Metadata Date: 11/27/2002
Metadata Review Date:
Metadata Future Review Date:
Metadata Contact:
Contact Information:
Contact Person Primary:
Contact Person: Dale Guenther
Contact Organization: Regional Ecosystem Office
Contact Position: Data Administrator
Contact Address:
Address Type: mailing address
Address: P.O. Box 3623
City: Portland
State or Province: OR
Postal Code: 97208-3263
Country: USA
Contact Voice Telephone: (503)808-2188
Contact Facsimile Telephone: (503)808-2163
Contact Electronic Mail Address:dguenther@fs.fed.us
Metadata Standard Name: Content Standards for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Time Convention: local time
Metadata Extensions:
Online Linkage: http://www.esri.com/metadata/esriprof80.html
Profile Name: ESRI Metadata Profile
SMMS Metadata report generated 12/4/2002