8 Digit Watershed Boundary Dataset

Metadata:

• Identification_Information
• Spatial_Data_Organization_Information
• Entity_and_Attribute_Information
• Metadata_Reference_Information
• Data_Quality_Information
• Spatial_Reference_Information
• Distribution_Information

Identification_Information:

Citation:

Citation_Information:

Title: 8 Digit Watershed Boundary Dataset

Geospatial_Data_Presentation_Form: vector digital data

Originator:

U.S. Department of Agriculture, Service Center Agencies - National Geospatial Management Center

Publication_Date: 2013

Publication_Information:

Publisher: USDA/NRCS - National Geospatial Management Center

Publication_Place: Reston, VA

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -92.094423

East_Bounding_Coordinate: -78.847711

North_Bounding_Coordinate: 49.022606

South_Bounding_Coordinate: 40.954215

Access_Constraints: None.

Use_Constraints:

The U.S. Department of Agriculture, Service Center Agencies should be acknowledged as the data source in products derived from these data.

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcGIS 10.0.5.4400

Keywords:

Description:

Abstract:

This dataset at 1:24,000 scale is a greatly expanded version of the hydrologic units created in the mid-1970's by the U.S. Geological Survey under the sponsorship of the Water Resources Council. The WBD is a complete set of hydrologic units from new watershed and subwatesheds less than 10,000 acres to entire river systems draining large hydrologic unit regions, all attributed by a standard nomenclature.

Purpose:

This dataset is intended to be used as a tool for water-resource management and planning activities, particularly for site-specific and localized studies requiring a level of detail provided by large-scale map information.

Time_Period_of_Content:

Currentness_Reference: Ground condition

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2013

Status:

Progress: In work

Maintenance_and_Update_Frequency: Continually

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Department of Agriculture, Service Center Agencies - National Geospatial Management Center

Contact_Address:

Address_Type: Mailing address

Address: 501 W. Felix St, Bldg 23

City: Fort Worth

State_or_Province: Texas

Postal_Code: 76115

Spatial_Data_Organization_Information:

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: 64

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: wbdhu8_a_mi

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: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: AreaAcres

Attribute_Definition: Area, shown in acres

Attribute_Definition_Source: USDA

Attribute:

Attribute_Label: AreaSqKm

Attribute_Definition: Area, shown in square kilometers

Attribute_Definition_Source: USDA

Attribute:

Attribute_Label: States

Attribute_Definition: States included in the 8-digit hydrologic unit

Attribute_Definition_Source: USDA

Attribute:

Attribute_Label: HUC8

Attribute_Definition: Unique 8-digit hydrologic unit code

Attribute_Definition_Source: USDA

Attribute:

Attribute_Label: Name

Attribute_Definition: Subbasin name

Attribute_Definition_Source: USDA

Overview_Description:

Entity_and_Attribute_Overview:

Hydrologic Unit delineation are closed polygons that encompass all area draining toward the lowest point (called outlet or pour point) in the polygon. Because of varying sizes for the different hydrologic unit levels: some polygons do not include all areas up to the drainage divide, but all areas are included up 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 2-digit Region number that contains the 4-, 6-, and 8-digit hydrologic units. Each hydrologic unit has a unique hydrologic code.

Metadata_Reference_Information:

Metadata_Date: 20130322

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Organization:

Center for Shared Solutions and Technology Partnerships, Michigan Dept of Technology, Management, and Budget

Contact_Person: Bob Reszka

Contact_Position: Resource Analyst

Contact_Address:

Address_Type: mailing address

Address: P.O. Box 30026

City: Lansing

State_or_Province: MI

Postal_Code: 48933

Contact_Voice_Telephone: 517-373-7910

Contact_Facsimile_Telephone: 517-373-2939

Contact_Electronic_Mail_Address: Reszkar@michigan.gov

Contact_Instructions: <http://www.Michigan.gov/cgi>

Data_Quality_Information:

Logical_Consistency_Report:

This data set is not designed for use as a primary regulatory tool in permitting or citing decisions, but may be used as a reference source. This information may be interpreted by organizations, agencies, units of government, or others based on needs; however, they are responsible for the appropriate application. Federal, State, or local regulatory bodies are not to reassign to the Service Center Agencies any authority for the decisions that they make. The Service Center Agencies will not perform any evaluations of these data for purposes related solely to State or local regulatory programs.
Photographic or digital enlargement of these data to scales greater than at which they were originally mapped can cause misinterpretation of the data. Digital data files are periodically updated, and users are responsible for obtaining the latest version of the data.

Completeness_Report: Data is as complete as possible

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Data was created using the accuracy of the ESRI Arc platform and positional accuracy of USGS topoquads and the latest aerial imagery.

Lineage:

Process_Step:

Process_Date: None

Process_Description:

For a complete description of the attributes and processes used to delineate hydrologic units to 1:24,000 scale accuracy, please refer to document Watershed Boundary Dataset (WBD) User Guide included with each WBD order.

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000001

Longitude_Resolution: 0.000001

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 1980

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Distribution_Information:

Resource_Description: Live Data and Maps

Distribution_Liability:

Although these data have been processed successfully on a computer system, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data to evaluate data set limitations, restrictions or intended use. The State of Michigan shall not be held liable for improper or incorrect use of the data described and/or contained herein.

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Department of Agriculture, Service Center Agencies - National Geospatial Management Center

Contact_Address:

Address_Type: Mailing address

Address: 501 W. Felix St, Bldg 23

City: Fort Worth

State_or_Province: Texas

Postal_Code: 76115