Estimate of Annual Groundwater Recharge

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:

Groundwater Inventory and Mapping Project, a cooperative effort between the Water Bureau - Michigan Department of Environmental Quality, USGS - Michigan Water Science Center and Michigan State University - Institute of Water Research, RS&GIS and Biosystems and Agricultural Engineering. This project was mandated by P.A. 148 (Michigan Acts of 2003). Major funding was provided by MDEQ, supplemented with additional funds from the USGS Cooperative Water Program.

Title: Estimate of Annual Groundwater Recharge

Edition: 1.0

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage: <http://gwmap.rsgis.msu.edu/>

Larger_Work_Citation:

Citation_Information:

Originator: Groundwater Inventory and Mapping Project

Title:

Executive Summary - Public Act 148: Groundwater Inventory and Map Project

Geospatial_Data_Presentation_Form: Adobe PDF document

Online_Linkage: <http://gwmap.rsgis.msu.edu/>

Description:

Abstract:

This data set provides an estimate of annual groundwater recharge for each public land survey section in Michigan.

Purpose:

Public Law 148 required the MDEQ to obtain a map of state-wide groundwater recharge. The US Geological Survey and Michigan State University have created this data set to meet that need.

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Unknown

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -90.172753

East_Bounding_Coordinate: -81.801049

North_Bounding_Coordinate: 47.53332

South_Bounding_Coordinate: 41.670939

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: groundwater

Theme_Keyword: recharge

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Michigan

Place:

Place_Keyword_Thesaurus: None

Access_Constraints: No restrictions on access

Use_Constraints: No restrictions on use

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: US Geological Survey, Michigan Water Science Center

Contact_Person: Steve Aichele

Contact_Position: Geographer

Contact_Voice_Telephone: 517-887-8918

Contact_Facsimile_Telephone: 517-887-8937

Contact_Electronic_Mail_Address: [email protected]

Data_Set_Credit: U.S. Geological Survey Michigan Water Science Center

Native_Data_Set_Environment:

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

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Accuracy of the recharge estimate is estimated to be +/- 2.44 inches/yr in the western and northern Lower Peninsula, +/- 1.1 in/yr in the southeastern Lower Peninsula, and +/- 2.9 inches/yr in the Upper Peninsula. Areas in the eastern Upper Peninsula (Luce, Chippewa, and Mackinaw Counties) may have higher error because of relatively poor representation of specific geologic environments.

Logical_Consistency_Report:

Data were processed in three zones - the Upper Peninsula; watersheds tributary to Lake Michigan and northern Lake Huron (as far south as the Rifle River); and watersheds tributary to southern Lake Huron, Lake St. Clair, and Lake Erie. As a result, some inconsistency may exist at the boundary between the modeled regions.

Completeness_Report: Complete

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Horizontal accuracy +/- 50m, based on accuracy of input section boundary file.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: NA

Lineage:

Process_Step:

Process_Description:

Base flow separations were compiled 208 USGS streamflow gages in Michigan from those completed by Neff and others (2005). Within each region, an average recharge rate was calculated based on the baseflow yield. Residuals were computed for each streamflow gage. Watershed characteristics describing the geology, land cover, and general climate characteristics of the gaged watersheds were also compiled. These data were analyzed in Systat v.11 using a forward stepwise regression procedure to identify watershed characteristics that might be useful in predicting the value fo the residual. Within the eastern Lower Peninsula, the significant predictive variables, in addition to area, were: agricultural land use, urban land use, annual growing degree days, annual precipitation, and percent of the watershed underlain by lacustrine deposits. Within the western Lower Peninsula, the significant predictive variables, in addition to area, were: winter (December through March) precipitation, the percentage of the watershed underlain by till, and the percentage of the watershed occupied by forests. In the Upper Peninsula, the significant predictive variables, in addition to area, were: growing degree days and winter precipitation. Each of these predictive variables were calculated for each Public Land Survey section, the data used to predict a residual, then the residual added to the base recharge prediction for the region.

Source_Used_Citation_Abbreviation:

Neff, B.P., Day, S.M., Piggott, A.R., and Fuller, L.M., Base Flow in the Great Lakes Basin: U.S. Geological Survey Scientific Investigations Report 2005-5217, 23 p.

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: 59922

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: WGS 1984 Web Mercator

Mercator:

Standard_Parallel: 0.0

Longitude_of_Central_Meridian: 0.0

False_Easting: 0.0

False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.0001

Ordinate_Resolution: 0.0001

Planar_Distance_Units: meter

Geodetic_Model:

Horizontal_Datum_Name: D WGS 1984 Major Auxiliary Sphere

Ellipsoid_Name: WGS 1984 Major Auxiliary Sphere

Semi-major_Axis: 6378137.0

Denominator_of_Flattening_Ratio: 0.0

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Groundwater Recharge

Attribute:

Attribute_Label: OBJECTID_1

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: OBJECTID

Attribute:

Attribute_Label: AREA_

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: COUNTY

Attribute_Definition: County ID

Attribute:

Attribute_Label: Recharge_I

Attribute:

Attribute_Label: SEC

Attribute_Definition: PLSS Section

Attribute:

Attribute_Label: PERIMETER

Attribute_Definition: section perimeter in meters

Attribute:

Attribute_Label: TWN

Attribute_Definition: PLSS Township

Attribute:

Attribute_Label: Shape_Leng

Attribute:

Attribute_Label: RNG

Attribute_Definition: PLSS Range

Attribute:

Attribute_Label: Shape.STArea()

Attribute:

Attribute_Label: Shape.STLength()

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Remote Sensing & GIS Research and Outreach Services

Contact_Person: Justin M Booth

Contact_Position: Information Technology Professional

Contact_Address:

Address_Type: mailing

Address: 1405 South Harrison, Room 308

City: East Lansing

State_or_Province: MI

Postal_Code: 48823

Country: United States of America

Contact_Electronic_Mail_Address: [email protected]

Distribution_Liability:

The State of Michigan or the Ground Water Inventory and Mapping Project partnership assumes no liability for results or conclusions drawn from use of this data.

Metadata_Reference_Information:

Metadata_Date: 20121024

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Remote Sensing & GIS Research and Outreach Services

Contact_Person: Justin M Booth

Contact_Position: Information Technology Professional

Contact_Address:

Address_Type: mailing

Address: 1405 South Harrison, Room 308

City: East Lansing

State_or_Province: MI

Postal_Code: 48823

Country: United States of America

Contact_Voice_Telephone: 517-432-0446

Contact_Facsimile_Telephone: 517-353-1821

Contact_Electronic_Mail_Address: [email protected]

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time