Michigan’s Major Watersheds - Subbasins

Metadata:

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

Identification_Information:

Citation:

Citation_Information:

Originator: Michigan Department of Environmental Quality

Publication_Date: 20110101

Title: Michigan’s Major Watersheds - Subbasins

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Lansing, MI

Publisher: Michigan Department of Environmental Quality

Description:

Abstract:

The Michigan’s Major Watersheds - Subbasins shape file depicts the drainage areas of 20 square miles or greater at geographic features such as the mouth of a river or the location of a USGS stream flow collection station. The shape file is used to determine hydrologic parameters for determining a range of flows in watershed analysis.

Purpose:

Intended for use in determining the 10% design flood frequency discharges or greater. Also used for watershed management and planning. Watersheds depict drainage areas of 20 mi2 or greater.

Supplemental_Information:

This watershed file was derived from files produced by the Michigan Department of Environmental Quality (DEQ) at <http://www.deq.state.mi.us/lwm/water_mgmt/gis/default.asp>. In order to facilitate viewing individual counties, the Michigan State University Center for Remote Sensing and GIS (MSU CRSGIS) modified these files. Both DEQ files (Upper and Lower Peninsula) were projected into Michigan GeoRef. The county files were produced by selecting all watersheds that covered any part of the county. Therefore, the county watershed files have a larger extent that the county, and watersheds may be represented in more than one county file. Questions on the processing done at MSU CRSGIS should be directed to: Tracy Aichele Center for Remote Sensing and GIS 308 Manly Miles Building 1405 S. Harrison Rd. East Lansing, MI 48823 <http://www.crs.msu.edu> (517) 432-0446 aichele@crs.msu.edu

Time_Period_of_Content:

Currentness_Reference: Publication date

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19880101

Ending_Date: 19970101

Status:

Progress: In work

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -90.558289

East_Bounding_Coordinate: -82.072107

North_Bounding_Coordinate: 48.261556

South_Bounding_Coordinate: 41.19768

Access_Constraints: None

Use_Constraints:

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.

Native_Data_Set_Environment:

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

Keywords:

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Hydrologic Studies Dam Safety Unit, Water Resources Division, MDEQ

Contact_Person: Marlio Lesmez

Contact_Voice_Telephone: 517-335-3173

Contact_Electronic_Mail_Address: lesmezm@michigan.gov

Data_Quality_Information:

Logical_Consistency_Report: Data was tested within the parameters of the program

Completeness_Report:

The data is complete. The Lower Peninsula is in Michigan GeoRef Projection, NAD 83. The Upper Peninsula is in State Plane Region 1, NAD 27. Planar Distance/Map Units: The Lower Peninsula is in meters. The Upper Peninsula is in feet. Horizontal Accuracy +/- ~ 80 feet (Based on digitizer precision and Quad accuracy)

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Horizontal Accuracy +/- ~ 80 feet (Based on digitizer precision and Quad accuracy)

Lineage:

Process_Step:

Process_Description:

Data was compiled from available USGS 7.5 minute Topographic Quadrangles over a period of ten years (1988 thru 1997).

Process_Step:

Process_Description:

Line work was hand delineated onto USGS 1:24,000 scale Topographic Quadrangles, USGS, NRCS and MDEQ checked line work as part of a three-agency initiative. Data was checked and digitized using Microstation to fit the MIRIS base. Line work for the Upper Peninsula was cleaned and assemble Using Arc/Info NT. Line work for the Lower Peninsula was projected to Michigan GeoRef, cleaned and assembled in Arc/Info NT.

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains

Point_and_Vector_Object_Count: 2369

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Oblique Mercator

Oblique_Mercator:

Scale_Factor_at_Center_Line: 0.9996

Oblique_Line_Azimuth:

Azimuthal_Angle: 337.25556

Azimuth_Measure_Point_Longitude: -86.0

Latitude_of_Projection_Origin: 45.30916666666666

False_Easting: 2546731.496

False_Northing: -4354009.816

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.0001

Ordinate_Resolution: 0.0001

Planar_Distance_Units:

Geodetic_Model:

Horizontal_Datum_Name: D North American 1983

Ellipsoid_Name: GRS 1980

Semi-major_Axis: 6378137.0

Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: subs

Attribute:

Attribute_Label: OBJECTID

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: Reference.CSS_SDE_ADMIN.WATERSHED_DEQ.AREA

Attribute:

Attribute_Label: PERIMETER

Attribute_Definition: Meters in LP and feet in UP.

Attribute_Definition_Source: Water Resource Division

Attribute:

Attribute_Label: WCOURSE

Attribute_Definition: Watercourse Name

Attribute_Definition_Source: Water Resource Division

Attribute:

Attribute_Label: SUB

Attribute_Definition: Subset of Basin attribute

Attribute_Definition_Source: Water Resource Division

Attribute:

Attribute_Label: SHED_ID

Attribute_Definition: Unique Watershed Identifier (character)

Attribute_Definition_Source: Water Resource Division

Attribute:

Attribute_Label: HUC

Attribute_Definition: Hydrologic Unit Code

Attribute_Definition_Source: USDA

Attribute_Domain_Values:

Unrepresentable_Domain: 8 digit numeric code designating the HUC

Attribute:

Attribute_Label: TDA_MI

Attribute_Definition: Total drainage area at design point of polygon

Attribute_Definition_Source: Water Resource Division

Attribute_Domain_Values:

Unrepresentable_Domain: Square miles

Attribute:

Attribute_Label: OUTLET

Attribute_Definition: Watercourse outlet or design point

Attribute_Definition_Source: Water Resource Division

Attribute:

Attribute_Label: DRAIN_TO

Attribute_Definition: Indicator of which Sub drains to which Sub in a Basin

Attribute_Definition_Source: Water Resource Division

Attribute:

Attribute_Label: BASIN

Attribute_Definition: Hydrologic Studies Unit Basin Number (character)

Attribute_Definition_Source: Water Resource Division

Attribute:

Attribute_Label: HUC14

Attribute_Definition: Hydrologic Unit Code

Attribute_Definition_Source: USDA

Attribute_Domain_Values:

Unrepresentable_Domain: 14 digit HUC designating smaller area within 8 digit HUC

Attribute:

Attribute_Label: CO

Attribute_Definition: County Number

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1

Range_Domain_Maximum: 83

Attribute:

Attribute_Label: AREA_MI

Attribute_Definition: Square miles

Attribute_Definition_Source: Water Resource Division

Attribute:

Attribute_Label: TN

Attribute_Definition: Township

Attribute:

Attribute_Label: RNG

Attribute_Definition: Range

Attribute:

Attribute_Label: SEC

Attribute_Definition: Section Number

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: Shape.STArea()

Attribute:

Attribute_Label: Shape.STLength()

Distribution_Information:

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_Person_Primary:

Contact_Organization:

Hydrologic Studies Dam Safety Unit, Water Resources Division, MDEQ

Contact_Person: Marlio Lesmez

Contact_Voice_Telephone: 517-335-3173

Contact_Electronic_Mail_Address: lesmezm@michigan.gov

Metadata_Reference_Information:

Metadata_Date: 20130320

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: 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>