michigan.WEBMERC.HYD_LN_DEQ_STREAM_BASEFLOW

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: michigan.WEBMERC.HYD_LN_DEQ_STREAM_BASEFLOW

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 Map Project

Title: Executive Summary - Public Act 148:

Edition: 1st

Geospatial_Data_Presentation_Form: PDF Document

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

Description:

Abstract:

This data set provides estimates of the ground-water contribution to stream flow, frequently referred to as base flow, in cubic feet per second. The baseflow of a stream or river is the amount of groundwater discharged from an aquifer to the watercourse. This discharge occurs year-round, and fluctuates seasonally depending on the level of the water in the aquifer. Baseflow is supplemented by direct runoff during and immediately after precipitation or melt events, resulting in peaks on a hydrograph showing stream flow through time. The process of dividing these peaks into base flow and runoff is called hydrograph separation. Hydrograph separations were completed for all USGS stream- flow gaging stations in Michigan that had more than 10 years of daily records. Sites that were clearly affected by upstream impoundments (lakes, dams) were excluded. No attempt was made to detect or correct for trends in the data. This may lead to some errors in the comparison of streams with data from different time periods if there is an underlying temporal trend in the data, but inclusion of all records in the analysis was necessary to increase the data pool and provide better spatial coverage. Watersheds were delineated for each of the 208 stream-flow gaging stations, and various characteristics of each watershed, such as topographic relief, surficial geology, land cover, growing degree days, annual and winter-season precipitation, and others were tabulated. Regression modeling, described in the Technical Report, was used to estimate the baseflow for each steam segment of the 1:100,000-scale National Hydrography Dataset.

Purpose:

This data was generated to support decision making pursuant to Michigan PA 148.

Supplemental_Information:

Several areas in Southeast Michigan, particualrly within the Rouge, Huron, and Raisin watersheds, were not estimated. Other areas, such as islands within the Great lakes, were also not estimated.

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: Stream flow

Theme_Keyword: Ground water

Theme_Keyword: Base flow

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

Contact_Person: Steve Aichele

Contact_Position: Geographer

Contact_Address:

Address_Type: mailing

Address: 6520 Mercantile Way, Suite 5

City: Lansing

State_or_Province: Michigan

Postal_Code: 48911

Country: US

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

Security_Information:

Security_Classification: Unclassified

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:

The estimated baseflow values are consistent with general trends across the state but do not explicitly account for withdrawals or augmentations. Although flows generally decrease downstream, no explicit mass conservation was required in the model, thus the flow in a reach may not equal the sum of its contributing reaches.

Logical_Consistency_Report: None

Completeness_Report: None

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Positional accuracy is identical to source linework from National Hydrography Dataset

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: NA

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: USGS

Title: National Hydrography Dataset 100K Flowlines

Type_of_Source_Media: None

Source_Citation_Abbreviation: NHD 100K

Process_Step:

Process_Description:

Applied regression equation from process step 1 to attributes developed in process step 2 to arrive at estiomated base flow for each reach inthe 1:100K NHD.

Process_Step:

Process_Description:

Developed a multivariate regression model relating base flow (as described by HYSEP 3, Sloto and Crouse, 1998) to characteristics of watersheds based on Neff and others (2005). Significant predictive variables were: Eastern Lower Peninsula - Area, agricultural fraction, urban fraction, annual growing degree days, annual precipitation, and percent lacustrine deposits. Western Lower Peninsula - Area, winter perecipitation, till percentage, and forest percentage Upper peninsula - Area, winter precipitation, growing degree days

Source_Used_Citation_Abbreviation:

Sloto, R.A., and Crouse, M.Y., 1998, HYSEP : a computer program for streamflow hydrograph separation and analysis, USGS WRIR 96-4040

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.

Process_Date: unknown

Process_Step:

Process_Description:

Calculated relevant landscape characteristics for the watershed associated with each reach in the 1:100K NHD.

Process_Date: unknown

Process_Step:

Process_Description:

Delineated drainage basins for stream gages based on conditioned DEM from UGS Aquatic GAP project.

Process_Date: unknown

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: String

Point_and_Vector_Object_Count: 35019

Raster_Object_Information:

Raster_Object_Type: Grid Cell

Row_Count: 1344

Column_Count: 1655

Vertical_Count: 1

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: michigan.WEBMERC.HYD_LN_DEQ_STREAM_BASEFLOW

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: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: GAP_CODE

Attribute:

Attribute_Label: ORDER_

Attribute:

Attribute_Label: PU

Attribute:

Attribute_Label: BASE_FLOW

Attribute:

Attribute_Label: YIELD

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: Geography Building, Michiagn State University

City: East Lansing

State_or_Province: MI

Postal_Code: 48824

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