20181128
15054900
1.0
FALSE
AZ_WBD_HUC8
-179.229655
179.856675
-14.424695
71.439573
1
002
0.000
Geographic
GCS_North_American_1983
Angular Unit: Degree (0.017453)
<GeographicCoordinateSystem xsi:type='typens:GeographicCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.1'><WKT>GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433],AUTHORITY["EPSG",4269]]</WKT><XOrigin>-400</XOrigin><YOrigin>-400</YOrigin><XYScale>11258999068426.238</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>8.9831528411952133e-009</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><LeftLongitude>-180</LeftLongitude><WKID>4269</WKID><LatestWKID>4269</LatestWKID></GeographicCoordinateSystem>
20140114
17222500
20140114
17222500
ArcGIS Metadata
1.0
Feature Class
USGS
Shapefile
0.000
AZ_WBD_HUC8
vector digital data
2012-11-02T00:00:00
2012-10-18T00:00:00
<div style='text-align:Left;'><p><br /></p></div>
This layer was created from the HUC8 layer.
Funding and support for the Watershed Boundary Dataset (WBD) were provided by the Natural Resources Conservation Service, the Environmental Protection Agency, and the United States Geological Survey. Representatives from the U.S. Geological Survey and Environmental Protection Agency contributed a substantial amount of time and salary towards quality review and updating of the dataset in order to meet the Federal Standards for Delineation of Hydrologic Unit Boundaries.
Watershed Boundaries
WBD
boundaries
Hydrologic Unit Code
Region
HUC
HUC12
Watershed
Subwatershed
Sub-region
Sub-basin
Watershed Boundary Dataset
Basin
Hydrologic Units
Hydrology
Watershed Boundaries
WBD
boundaries
Watershed
Cross Watershed Network
See access and use constraints information.
<div style='text-align:Left;'><p><br /></p></div>
United States
U.S.
Puerto Rico
Canada
Mexico
U.S. Territories
Virgin Islands
Esri ArcGIS 10.2.0.3348
1
-179.229655
179.856675
71.439573
-14.424695
AZ_WBD_HUC8
identifies watershed boundaries (as polygons)
n/a
Feature Class
0
FID
FID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
TNMID
TNMID
String
40
0
0
LoadDate
LoadDate
Date
8
0
0
MetaSource
MetaSource
String
40
0
0
SourceData
SourceData
String
100
0
0
SourceOrig
SourceOrig
String
130
0
0
SourceFeat
SourceFeat
String
40
0
0
GNIS_ID
GNIS_ID
Integer
9
9
0
AreaAcres
AreaAcres
Double
19
0
0
AreaSqKm
AreaSqKm
Double
19
0
0
HUC8
HUC8
String
8
0
0
Name
Name
String
120
0
0
SHAPE
Feature geometry.
ESRI
Coordinates defining the features.
As needed
Shape
Geometry
0
0
0
STATES
The "States" field includes the names of all state(s) that the subwatershed falls within. The 2-digit postal abbreviation in upper case and in alphabetical order was used, separated with a comma.
Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Character String
As needed
States
String
50
0
0
Shape_STAr
Shape_STAr
Double
19
0
0
Shape_STLe
Shape_STLe
Double
19
0
0
Shape_Leng
Shape_Leng
Double
19
0
0
Shape_Area
Shape_Area
Double
19
0
0
Area of feature in internal units squared.
ESRI
Positive real numbers that are automatically generated.
Each hydrologic unit polygon has associated attributes stored in tabular format. An attribute, also called a field or column, is defined by name, type, size, and valid values. For this layer, these attributes are the Hydrologic Unit Codes, Names, Acreage, States crossed, non-contributing area, Downstream unit code, Type, and Modification. ftp://ftp-fc.sc.egov.usda.gov/NCGC/products/watershed/hu-standards.pdf
Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3. The data is currently updated through the USGS National Hydrography Dataset (NHD) Program and replicated to NRCS twice per year.
dataset
EPSG
8.1.1
0
Simple
FALSE
0
FALSE
FALSE
20140114