HUC_11_8_stitch

Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: Waterborne Environmental, Incorporated
Publication_Date: 05.2004
Title:
HUC_11_8_stitch
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage: NA
Description:
Abstract:
The United States is divided and sub-divided into successively smaller hydrologic units,which are initially classified into four levels: regions, sub-regions, accounting units, and cataloging units. The hydrologic units are arranged within each other, from the smallest(cataloging units) to the largest (regions). Each hydrologic unit is identified by a unique hydrologic unit code (HUC) consisting of two to eight digits based on the four levels of classification in the hydrologic unit system (USGS, 2003a). The region represented by a HUC of level 2 is larger than a cataloging unit (HUC8). The numbering system for the hydrologic units fully describes the nested nature of the HUC system. The HUC8 level is also called the sub-basin level (Legleiter, 2001). Some years ago, USGS and Natural Resource Conservation Service (NRCS) developed two further even more highly resolved watershed  classifications known as watersheds (HUC11) and sub-watersheds (HUC14). However, USGS is currently in the process of developing a nationally consistent hydrologic unit dataset for the delineation of watersheds and sub-watersheds at the 10-digit and 12-digit scales and these follow the format of the HUC2 to HUC8 nested system. 

HUC10 watersheds are equivalent in scale to those previously designated as HUC11, and HUC12 units are similar to those previously given the HUC14 descriptor.


Legleiter, Kenneth J., 2001. Interagency Development of National Watershed and Subwatershed Hydrologic Units. Conference Paper 21st Annual ESRI International User Conference, July 9-13, 2001.
http://gis.esri.com/library/userconf/proc01/professional/papers/pap492/p492.htm

This data set compiles the 11 digit or 8 digit Hydrologic Cataloging Unit (HUC) for 37 states in the eastern and mid-western United States into one spatial data set.  It was compiled in 2004 from the individual state 11 digit or 8 digit HUC available at that time.  Processing occured during the compilation process.  Please read the data processing steps of this metadata document for further information.
Purpose:
The data set was compiled in order to provide a stop-gap measure before the official edge -matched 10 digit HUCS are available.  The HUCS were stitched together to provide a continous data layer of best available data. 

For use with the GEOSTAC database, this data set was compiled in order to simplify pesticide risk assesment and to provide a common data set for interested parties.
Supplemental_Information:
Please visit: http://www.ncgc.nrcs.usda.gov/products/datasets/watershed/, for more information on the offical Watershed Boundary Dataset compilation process.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Currentness_Reference:
publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -111.416687
East_Bounding_Coordinate: -66.016260
North_Bounding_Coordinate: 50.138268
South_Bounding_Coordinate: 23.472206
Keywords:
Theme:
Theme_Keyword_Thesaurus: REQUIRED: Reference to a formally registered thesaurus or a similar authoritative source of theme keywords.
Theme_Keyword: HUC 11
Theme_Keyword: HUC 8
Theme_Keyword: 8 digit HUC
Theme_Keyword: 11 digit HUC
Theme_Keyword: Stop Gap
Access_Constraints: This data set is intended for use with the GEOSTAC database.
Use_Constraints:
The use constraints on this data set are particularly important.  This data set was compiled as a stop-gap measure prior to official release of the edge matched HUC watershed boundary data sets.  Users should be aware that the USDA, NRCS are currently managing the production of an offical country wide watershed boundary data set.  More information is available at: http://www.ncgc.nrcs.usda.gov/products/datasets/watershed/.  In addition, user should be aware of the compilation process of this data set.  Please refer to the data processing portion of this metadata document for further information.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Waterborne Environmental, Incorporated
Contact_Person: Spatial Technologies Group
Contact_Address:
Address_Type: mailing and physical address
Address:
897 B Harrison Street SE
City: Leesburg
State_or_Province: Virginia
Postal_Code: 20175
Contact_Voice_Telephone: 703.777.0005
Data_Set_Credit:
The individual state HUC data sets were compiled from the USDA, NRCS, USGS, or State, and stitched into one data layer.
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 9.1.0.722
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Data_Quality_Information:
Lineage:
Process_Step:
Process_Description:
Watershed (HUC10/11) were only available from individual states, and this resulted in potential complications at state  boundaries. To create a continuous, consistent scale watershed spatial dataset, the aggregated and native HUC10/11 datasets (and national HUC8 where necessary) were joined across state boundaries to provide a continuous HUC coverage for data processing and analysis of the 37 states. The following general rules were used to create a continuous 37 state watershed coverage from individual state coverages:

• For HUC10/11 watersheds in states bordering those outside of the 37 state extents, watersheds that crossed state borders were excluded.

• For HUC8 sub-basins that crossed borders outside of the 37 state extents, the subbasin was included if the flow drained into one of the 37 states.

• In cases where there were only national HUC8 data available for a state, national HUC8 sub-basins were used in the interior of the state.

• HUC10/11 watersheds were aggregated to the HUC8 level, using the same procedure as above, to match the sub-basin scale for continuity across state borders (e.g., Nebraska and Oklahoma border in Figure 9).

• HUC 12/14 watersheds were aggregated to the HUC 11 level using the dissolve function in ArcGIS on the HUC 8 attribute field.
Process_Date: 2004
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Waterborne Environmental, Incorporated
Contact_Person: Spatial Technologies Group
Process_Step:
Process_Description:
State HUC Information

ALABAMA
Al_huc11_dd coverage
Metadata included.
Source:
http://www.gsa.state.al.us
Geographic Coordinate System: GCS_Clarke_1866

ARKANSAS
No huc11 coverage available
Huc8 used from USGS huc250 coverage (1:250,000-scale Hydrologic Units of the United States)
http://water.usgs.gov/GIS/metadata/usgswrd/huc250k.html
ftp://water.usgs.gov/pub/dsdl/huc250.e00.gz

COLORADO
Ws_co coverage
Metadata included
Level 5 watershed with 10 digit codes for HUCs.
Huc 11 from Ws_co_20000902.zip coverage
Projected Coordinate System: NAD_1927_UTM_Zone_13N
http://www.cdphe.state.co.us/hs/gis/spatialdata.asp

CONNECTICUT
Ct_hu12_geo83.e00 coverage
ftp://ftp.ftw.nrcs.usda.gov/pub/hu/wbd_docs/
Geographic Coordinate System: GCS_North_American_1983

DISTRICT OF COLUMBIA
Covered by Maryland watersheds

DELAWARE
Ncbasin coverage, kbsin coverage, and sxbasins coverage
Metadata included
http://www.udel.edu/FREC/Spatlab/basins
Projected Coordinate System: NAD_1983_UTM_Zone_18N

FLORIDA
HUC_18_albers.shp
http://www.dep.state.fl.us/geology/gisdatamaps/index.htmFrom Harbourt…?
Projected Coordinate System: Albers_NAD83
Coordinate System:
Albers
False_Easting: 400000.000000
False_Northing: 0.000000
Central_Meridian: -84.000000
Standard_Parallel_1: 24.000000
Standard_Parallel_2: 31.500000
Latitude_Of_Origin: 24.000000
GCS_North_American_1983_HARN
Datum: D_North_American_1983_HARN
Prime Meridian: 0


GEORGIA
Ga_huc12_geo83
Metadata included.
ftp://ftp.ftw.nrcs.usda.gov/pub/hu/wbd_docs/
Geographic Coordinate System: GCS_North_American_1983

IOWA
Ia_huc11_dd coverage
Metadata included.
ftp.igsb.uiowa.edu/download/HUC11
Geographic Coordinate System: GCS_North_American_1983

ILLINOIS
Il_huc12_geo83 coverage
Metadata included.
ftp://ftp.ftw.nrcs.usda.gov/pub/hu/wbd_docs/
Geographic Coordinate System: GCS_North_American_1983

INDIANA
In_huc12_dd coverage
ftp.ftw.nrcs.usda.gov/pub/hu_qa/
Geographic Coordinate System: GCS_North_American_1983

KANSAS
Ks_huc14_dd coverage
http://gisdasc.kgs.ukans.edu/

Geographic Coordinate System: GCS_Clarke_1866
KENTUCKY
Ky_huc14_dd coverage
ftp.ftw.nrcs.usda.gov/pub/hu_qa/
Geographic Coordinate System: GCS_North_American_1983

LOUISIANA
Subseg99_dd.shp
http://gis1.deq.state.la.us/downloads/index.htm
Geographic Coordinate System: GCS_North_American_1927

MAINE
No huc11 coverage available
Huc8 used from USGS huc250 coverage (1:250,000-scale Hydrologic Units of the United States)
http://water.usgs.gov/GIS/metadata/usgswrd/huc250k.html
ftp://water.usgs.gov/pub/dsdl/huc250.e00.gz

MARYLAND
Md_hu12_geo83
ftp://ftp.ftw.nrcs.usda.gov/pub/hu/wbd_docs/
Geographic Coordinate System: GCS_North_American_1983

MASSACHUSETTS
Ma_hu12_geo83
ftp://ftp.ftw.nrcs.usda.gov/pub/hu/wbd_docs/
Geographic Coordinate System: GCS_North_American_1983

MICHIGAN
Mi_huc12_dd coverage
ftp.ftw.nrcs.usda.gov/pub/hu_qa/
Geographic Coordinate System: GCS_North_American_1983

MINNESOTA
Mn_hucs coverage
http://lucy.lmic.state.mn.us/metadata/nrcsws99.html
Projected Coordinate System: NAD_1983_UTM_Zone_15N

MISSISSIPPI
Ms_hucs.shp (wsheds.tar.z)
http://www.maris.state.ms.us/statewide.html
Geographic Coordinate System: GCS_North_American_1927

MISSOURI
Mo_huc11_dd coverage
Http://msdis.missouri.edu/pub/state/natural/
Geographic Coordinate System: GCS_North_American_1983

NORTH CAROLINA
Nc_huc14_dd coverage
www.cgia.state.nc.us/cgdb/datalist.html
Geographic Coordinate System: GCS_North_American_1983

NEBRASKA
Bblhyd, elkhyd, lblhyd, lphyd, lplthyd, motrhyd, mplthyd, nemahhyd, niobyhyd, nplthyd, rephyd, splthy, and
whthyd coverages for Nebraska watershed regions
www.nrc.state.ne.us/databank/hydro.html
Projected Coordinate System: NAD_1983_UTM_Zone_14N

NEW HAMPSHIRE
Nh_hu12_geo83.shp
Metadata included.
ftp://ftp.ftw.nrcs.usda.gov/pub/hu/
Geographic Coordinate System: GCS_North_American_1983

NEW JERSEY
NJ_huc14.shpe (from Dephuc14 coverage)
Metadata included.
http://www.state.nj.us/dep/gis/
Projected Coordinate System: Transverse Mercator, NAD83
Coordinate System:
Transverse_Mercator
False_Easting: 492125.000000
False_Northing: 0.000000
Central_Meridian: -74.500000
Scale_Factor: 0.999900
Latitude_Of_Origin: 38.833333
GCS_North_American_1983
Datum: D_North_American_1983
Prime Meridian: 0

NEW YORK
No huc11 coverage available
Huc8 used from USGS huc250 coverage (1:250,000-scale Hydrologic Units of the United States)
http://water.usgs.gov/GIS/metadata/usgswrd/huc250k.html
ftp://water.usgs.gov/pub/dsdl/huc250.e00.gz

OHIO
Oh_huc14_dd coverage
Metadata included.
ftp.ftw.nrcs.usda.gov/pub/hu/
Geographic Coordinate System: GCS_North_American_1983

OKLAHOMA
No huc11 coverage available
Huc8 used from USGS huc250 coverage (1:250,000-scale Hydrologic Units of the United States)
http://water.usgs.gov/GIS/metadata/usgswrd/huc250k.html
ftp://water.usgs.gov/pub/dsdl/huc250.e00.gz

PENNSYLVANIA
Pa24k_geo83 coverage
ftp://ftp.ftw.nrcs.usda.gov/pub/hu_qa/
Geographic Coordinate System: GCS_North_American_1983

RHODE ISLAND
No huc11 coverage available
Huc8 used from USGS huc250 coverage (1:250,000-scale Hydrologic Units of the United States)
http://water.usgs.gov/GIS/metadata/usgswrd/huc250k.html
ftp://water.usgs.gov/pub/dsdl/huc250.e00.gz

SOUTH CAROLINA
Sc_hu14_geo83
ftp://ftp.ftw.nrcs.usda.gov/pub/hu/wbd_docs/
Geographic Coordinate System: GCS_North_American_1983

SOUTH DAKOTA
No huc11 coverage available
Huc8 used from USGS huc250 coverage (1:250,000-scale Hydrologic Units of the United States)
http://water.usgs.gov/GIS/metadata/usgswrd/huc250k.html
ftp://water.usgs.gov/pub/dsdl/huc250.e00.gz

TENNESSEE
tn_huc12_dd coverage
http://63.148.169.50/watershed.html
Geographic Coordinate System: GCS_North_American_1983

TEXAS
No huc11 coverage available
Huc8 used from USGS huc250 coverage (1:250,000-scale Hydrologic Units of the United States)
http://water.usgs.gov/GIS/metadata/usgswrd/huc250k.html
ftp://water.usgs.gov/pub/dsdl/huc250.e00.gz

VERMONT
Vt_huc12 coverage
ftp://ftp.ftw.nrcs.usda.gov/pub/hu/wbd_docs/
Geographic Coordinate System: GCS_North_American_1983

VIRGINIA
Hu_va coverage
Metadata included.
Source: Karl Huber, GIS/Data Management Manager Virginia DCR – DSWC,
203 Governor St, Suite 206
Richmond, VA 23219-2094
(804) 371-7484
khuber@dcr.state.va.us
Geographic Coordinate System: GCS_North_American_1927

WISCONSIN
Wsdrwats.shp
Metadata included:
Source: Janel Pike, GIS Analyst
Watershed Management
WI Dept. of Natural Resources
(608) 266-5606
Janel.Pike@dnr.state.wi.us
Projected Coordinate System: Transverse Mercator, NAD83
Coordinate System:
Transverse_Mercator
False_Easting: 520000.000000
False_Northing: -4480000.000000
Central_Meridian: -90.000000
Scale_Factor: 0.999600
Latitude_Of_Origin: 0.000000
GCS_North_American_1983_HARN
Datum: D_North_American_1983_HARN
Prime Meridian: 0

WEST VIRGINIA
No huc11 coverage available
Huc8 used from USGS huc250 coverage (1:250,000-scale Hydrologic Units of the United States)
http://water.usgs.gov/GIS/metadata/usgswrd/huc250k.html
ftp://water.usgs.gov/pub/dsdl/huc250.e00.gz
Process_Date: 2004
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Waterborne Environmental, Incorporated
Contact_Person: Spatial Technologies Group
Process_Step:
Process_Description:
Project data set to Albers Equal and NAD 83 datum.
Process_Date: 09.2005
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Waterborne Environmental, Incorporated
Contact_Person: Spatial Technologies Group
Process_Step:
Process_Description:
Convert data set to ArcGIS geodatabase feature class file format.
Process_Date: 09.2005
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Waterborne Enviornmental, Incorporated
Contact_Person: Spatial Technologies Group
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Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 9513
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Albers Conical Equal Area
Albers_Conical_Equal_Area:
Standard_Parallel: 29.500000
Standard_Parallel: 45.500000
Longitude_of_Central_Meridian: -96.000000
Latitude_of_Projection_Origin: 23.000000
False_Easting: 0.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.001736
Ordinate_Resolution: 0.001736
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: HUC_11_8_stitch
Attribute:
Attribute_Label: OBJECTID_12
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: Shape
Attribute_Definition:
Feature geometry.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Coordinates defining the features.
Attribute:
Attribute_Label: HUC_11D
Attribute:
Attribute_Label: Huc_8D
Attribute:
Attribute_Label: Shape_Length
Attribute_Definition:
Length of feature in internal units.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Positive real numbers that are automatically generated.
Attribute:
Attribute_Label: Shape_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_Label: HUC_8D
Attribute:
Attribute_Label: STATE
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Texas A&M University, Spatial Sciences Laboratory
Contact_Person: Texas A&M University, Spatial Sciences Laboratory
Contact_Address:
Address_Type: mailing and physical address
Address:
1500 Research Parkway, Suite B223
City: College Station
State_or_Province: Texas
Postal_Code: 77845
Contact_Voice_Telephone: 979-862-7956
Resource_Description: Downloadable Data
Distribution_Liability:
None
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: www.geostac.org
Access_Instructions:
Registered user ID and password provided by the Spatial Sciences Laboratory.
Fees: None
Ordering_Instructions:
Data can be downloaded from www.geostac.org with a registered user ID and password provided by the Spatial Sciences Laboratory.
Turnaround: Not Applicable
Custom_Order_Process:
Not Applicable
Technical_Prerequisites:
GIS Capable
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Metadata_Reference_Information:
Metadata_Date: 20060227
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Waterborne Environmental, Incorporated
Contact_Person: Spatial Technologies Group
Contact_Address:
Address_Type: mailing and physical address
Address:
897-B Harrison Street, SE
City: Leesburg
State_or_Province: VA
Postal_Code: 20175
Contact_Voice_Telephone: 703.777.0005
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Use_Constraints:
This metadata document is intended for use with the HUC_8_11_stitch data set of the GEOSTAC database.
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name: ESRI Metadata Profile
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