Annual groundwater recharge applied to the Great Divide groundwater flow model in Washburn/Great Divide Unit of the Chequamegon-Nicolet National Forest, Wisconsin

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Wisconsin Geological and Natural History Survey (WGNHS)
Publication_Date: 20181228
Title:
Annual groundwater recharge applied to the Great Divide groundwater flow model in Washburn/Great Divide Unit of the Chequamegon-Nicolet National Forest, Wisconsin
Geospatial_Data_Presentation_Form: raster digital data
Description:
Abstract:
This raster dataset provides the calibrated annual recharge in inches per year from a regional groundwater flow model. During the groundwater modeling process, an initial estimate of potential recharge was taken from a soil-water balance model, which is provided in a separate dataset (WGD_PoRec_WGNHS_2016). The initial soil-water balance grid was downsampled and clipped to the model area for import into the groundwater flow model. During flow model calibration, the initial grid was modified using a multiplier to provide the best match to observed groundwater data. This dataset presents the results of the calibrated grid (after the multiplier was applied). The methodology and results are documented in an accompanying summary report. This dataset was downsampled for import into the groundwater flow model and may not be accurate for site-specific applications.
Purpose:
This dataset was produced as part of a project to assess groundwater resources across the Chequamegon-Nicolet National Forest. Groundwater is an important resource for the forest, and a more comprehensive understanding of this resource can help guide land management decisions. Groundwater recharge is an important input to groundwater flow models; however it is a difficult parameter to estimate. This dataset presents the calibrated recharge grid used in a groundwater flow model. Initial estimates were taken from a soil-water balance model and then modified using a multiplier to provide the best match to observed groundwater data. This allows the magnitude of simulated recharge to be adjusted so that the model matches groundwater observations, while maintaining the spatial distribution of recharge simulated by the soil-water balance model. The datasets produced as part of this project are divided by location into four groups, corresponding to the four main National Forest Units: Medford, Nicolet, Park Falls, and Washburn/Great Divide. This dataset is located in the Washburn/Great Divide Unit. Within that unit, two groundwater flow models were constructed; this dataset is located in the Great Divide District.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20181228
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -91.438298
East_Bounding_Coordinate: -90.401569
North_Bounding_Coordinate: 46.491376
South_Bounding_Coordinate: 45.726544
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: hydrogeology
Theme_Keyword: recharge
Theme_Keyword: groundwater
Theme_Keyword: Chequamegon-Nicolet National Forest
Theme_Keyword: Washburn/Great Divide Unit
Theme_Keyword: Ashland County
Theme_Keyword: Bayfield County
Theme_Keyword: Sawyer County
Theme_Keyword: Wisconsin
Theme_Keyword: geoscientific information
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Chequamegon-Nicolet National Forest
Place_Keyword: Washburn/Great Divide Unit
Place_Keyword: Ashland County
Place_Keyword: Bayfield County
Place_Keyword: Sawyer County
Place_Keyword: Wisconsin
Access_Constraints: None
Use_Constraints:
These data are provided by the Wisconsin Geological and Natural History Survey (WGNHS) on an "as is" basis. WGNHS will not be liable for any damages of any kind arising from the use of these data, including, but not limited to direct, indirect, punitive, and consequential. WGNHS makes no warranties on these data, express, implied, statutory, or in any other provision of any agreement or communication, and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Wisconsin Geological and Natural History Survey (WGNHS)
Contact_Position: Information Manager
Contact_Address:
Address_Type: unknown
Address: 3817 Mineral Point Rd
City: Madison
State_or_Province: Wisconsin
Postal_Code: 53705-5100
Country: USA
Contact_Electronic_Mail_Address: gis@wgnhs.uwex.edu
Data_Set_Credit:
This project was funded by the U.S. Forest Service. The soil-water balance model code was published by the U.S. Geological Survey. The modeling was completed by the Wisconsin Geological and Natural History Survey in 2016.
Native_Data_Set_Environment: Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.0.8321

Data_Quality_Information:
Completeness_Report:
This dataset provides the calibrated groundwater recharge grid used in a groundwater flow model. The grid does not cover the entire groundwater flow model; additional recharge equivalent to the mean of this grid was applied to areas outside the grid. The quality of this dataset depends on inputs from the soil-water balance model and the performance of the groundwater flow model. See the WGD_PoRec_WGNHS_2016 for additional information on the soil-water balance model outputs. The recharge grid was calibrated to observed head and stream baseflow values of varying quality using a two-dimensional, regional groundwater flow model. Flow model construction and evaluation is documented in the accompanying report.
Lineage:
Source_Information:
Type_of_Source_Media: None
Source_Contribution:
This raster dataset provides the model-simulated annual recharge in inches per year for the Washburn model in the Washburn/Great Divide Unit of the Chequamegon-Nicolet National Forest in northwestern Wisconsin. The methodology and results are documented in an accompanying summary report available from WGNHS.

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: NAD 1927 UTM Zone 15N
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -93.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000.0
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.0000000022200019600404634
Ordinate_Resolution: 0.0000000022200019600404634
Planar_Distance_Units: meter
Geodetic_Model:
Horizontal_Datum_Name: D North American 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.9786982

Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
Raster cell values indicate model-simulated groundwater recharge in inches per year.
Entity_and_Attribute_Detail_Citation:
This raster dataset provides the model-simulated annual recharge in inches per year for the Washburn model in the Washburn/Great Divide Unit of the Chequamegon-Nicolet National Forest in northwestern Wisconsin. The methodology and results are documented in an accompanying summary report available from WGNHS.

Metadata_Reference_Information:
Metadata_Date: 20190212
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

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