mi_darcy_v2

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator:
Michigan Rivers Inventory, School of Natural Resources and Environment, University of Michigan, 430 East University, Ann Arbor, MI 48109-1115 & the Michigan Department of Natural Resources Fisheries Division, Institute for Fisheries Research, Ann Arbor, MI
Publication_Date: 2005
Publication_Time: Unknown
Title: mi_darcy_v2
Edition: Version 3 (Input Output (based on the Integer B Grid))
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place:
Baker et al. 2003. A GIS model of subsurface water potential for aquatic resource inventory, assessment, and environmental management. Environmental Management 32:607-719
Publisher: Michigan DNR
Other_Citation_Details:
First Published in Baker et al. Journal of American Water Resources, Code written in 1998-9. A publication detailing the Darcy Potential Groundwater Movement Model to be available soon through the MI DNR Fisheries Division Research Report: M.E. Baker, M.J. Wiley (School of Natural Resources and Environment, the University of Michigan, Ann Arbor, Michigan 48109-1115) and P.W. Seelbach (Institute for Fisheries Research, Michigan Department of Natural Resources, 212 Museums Annex, Ann Arbor, Michigan 48109-1084). GIS-based models of potential groundwater loading in glaciated landscapes: considerations and development in Lower Michigan. Michigan Department of Natural Resources Fisheries Research Report. In Press.
Please use this reference as a citation for this dataset. Baker et al. 2003. A GIS model of subsurface water potential for aquatic resource inventory, assessment, and environmental management. Environmental Management 32:607-719
Please contact Dr. Matthew Baker, Dr. Mike Wiley (at the University of Michigan, School of Natural Resources and Environment) or Dr. Paul Seelbach (Institute for Fisheries Research) for additional information on this dataset.
Online_Linkage:
\\hco751intrpw001\dnrftp\pub\fish\Research_Section\IFR\Kraftls\Lisa_Dygert\Darcy\mi_darcy_v2
Larger_Work_Citation:
Citation_Information:
Originator:
Michigan Rivers Inventory (Dr. Matthew Baker) at the School of Natural Resources and Environment, Univeristy of Michigan 430 East University, Ann Arbor, MI 48109-1115
Publication_Date: Unknown
Publication_Time: Unknown
Title: Darcy Groundwater Movement Model - Input Output
Edition: Version 3 - Input Output
Geospatial_Data_Presentation_Form: raster digital data
Other_Citation_Details:
Publication detailing the Darcy Potential Groundwater Movement Model to be available soon through the MI DNR Fisheries Division Research Report: M.E. Baker, M.J. Wiley (School of Natural Resources and Environment, the University of Michigan, Ann Arbor, Michigan 48109-1115) and P.W. Seelbach (Institute for Fisheries Research, Michigan Department of Natural Resources, 212 Museums Annex, Ann Arbor, Michigan 48109-1084). GIS-based models of potential groundwater loading in glaciated landscapes: considerations and development in Lower Michigan. Michigan Department of Natural Resources Fisheries Research Report. In Press.
Description:
Abstract:
Biological, chemical, and physical attributes of aquatic ecosystems are often strongly influenced by groundwater delivery. However, predictions of groundwater contributions to rivers, lakes, and wetlands at a scale useful to resource managers are generally lacking. With this model, we implement and validate a simple, terrain-based approach for predicting groundwater delivery to streams and other surface water systems using mapped data within a GIS environment. Model output was calculated in units of m day-1 for every 30 m2 grid cell across Lower Michigan.
Purpose:
This dataset was developed to acknowledge and quantify shallow subsurface water contributions to the physical and chemical character of aquatic ecosystems. This model describes an approach that has been useful in describing the spatial variation in shallow or local groundwater contributions to general patterns of stream flow, thermal characteristics, and biotic communities at hundreds of specific sites across Lower Michigan. Such terrain-based ground water modeling can provide the regional "big-picture" perspective many resource managers, planners, and policy makers require.
Supplemental_Information:
This dataset was created by Dr. Matthew Baker, as part of the Michigan Rivers Inventory (a long-term collaboration between the School of Natural Resources and Environment at the University of Michigan & the Michigan Department of Natural Resources Fisheries Division's Institute for Fisheries Research).
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2005
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -86.930855
East_Bounding_Coordinate: -82.189390
North_Bounding_Coordinate: 45.841532
South_Bounding_Coordinate: 41.221634
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: Hydrology
Theme_Keyword: GIS-based models
Theme_Keyword: groundwater movement
Theme_Keyword: rivers
Theme_Keyword: aquatic ecosystems
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Michigan
Place_Keyword: Lower Peninsula
Place_Keyword: glaciated landscapes
Temporal:
Temporal_Keyword_Thesaurus: none
Temporal_Keyword: current
Access_Constraints:
Use this dataset, but please familiarize yourself with its background and creation. When using this dataset, please cite it as such: Baker et al. 2003. A GIS model of subsurface water potential for aquatic resource inventory, assessment, and environmental management. Environmental Management 32:607-719.
Use_Constraints:
This dataset represents our most current information on the groundwater delivery potential in Lower Michigan as of 2003. It may be used, but understand that you use it at your own risk and only for intended uses. Neither the Michigan Rivers Inventory, nor the School of Natural Resources and Environment, nor the Michigan Department of Natural Resources Fisheries Division's Institute for Fisheries Research are liable for any damages that may result in use of this dataset.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Dr. Paul Seelbach
Contact_Organization:
Michigan Department of Natural Resources Fisheries Division, Institute for Fisheries Research
Contact_Position:
MIichigan Department of Natural Resources Fisheries Division, Head of Research
Contact_Address:
Address_Type: mailing and physical address
Address: 212 Museums Annex Building, 1109 North University Ave.
City: Ann Arbor
State_or_Province: Michigan
Postal_Code: 48109-1084
Country: USA
Contact_Voice_Telephone: 734 /663-3554 x 108
Contact_Facsimile_Telephone: 734/ 663-9399
Contact_Electronic_Mail_Address: seelbacp@michigan.gov
Hours_of_Service: Monday - Friday 8:00 am - 5:00 pm
Contact_Instructions: Please call or email with questions.
Data_Set_Credit:
The original development and evaluationof the version of the Darcy Model was performed using multiple datasets by Dr. Matthew Baker, now a Postdoctoral Fellow at the Smithsonian Environmental Research Center. First Published in Baker et al. Journal of American Water Resources 2001, and the code was written in 1998-9.
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.6.1500
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The grid values produced by this DARCY model (velocity = length*time-1) represent only the potential groundwater velocities to a surface location. The models contain no information about the actual distribution or transport of water - values should be treated principally as an index of potential groundwater delivery. For visualization purposes, the model output values could be usefully scaled in standard deviations from their mean value across Lower Michigan.
Validation was indirect because these potential velocities were not directly measurable in the field. To the extent that these models successfully identified locations where groundwater loading to surface systems could occur, groundwater-related attributes of the surface water systems could be used to test model predictions of spatial patterning. Likewise, we expected that model predictions should correspond to spatial patterns in statistical summaries of instantaneous groundwater delivery rates. Validation tests of the MRI-DARCY Input Output model (a product of the version 3 model) were more rigorous compared to earlier versions.
Quantitative_Attribute_Accuracy_Assessment:
Attribute_Accuracy_Value: <?>
Attribute_Accuracy_Explanation:
Watershed and channel network buffer summaries were compated to stream baseflow yields and water temperatures. Channel buffer summaries were compared with instantaneous discharge accrual rates. Local neighborhpood summaries and pixel values were compared with soil water status and hyporheic thermal gradients.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The horizontal accuracy associated with this dataset is derived from the input datasets. Please refer to these datasets for the specific accuracy values.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: 1:24,000 DEM (USGS)
Quantitative_Vertical_Positional_Accuracy_Assessment:
Vertical_Positional_Accuracy_Value: +/- 1m vertical accuracy
Vertical_Positional_Accuracy_Explanation: This is the only dataset that contains a vertical accuracy.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:
Michigan Rivers Inventory, School of Natural Resources and Environment University of Michigan & the Michigan Department of Natural Resources Fisheries Division, Institute for Fisheries Research.
Publication_Date: Unknown
Title: Mean conductivity values for glacial drift
Geospatial_Data_Presentation_Form: tabular digital data
Other_Citation_Details: This information was assembled from a number of sources.
Source_Scale_Denominator: not applicable
Type_of_Source_Media: chart
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: <?>
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Mean conductivity values for glacial drift
Source_Contribution:
Hydraulic conductivity was assigned based upon texture inferred from composition of each geologic formation in Michigan.
Interpreted from the following sources:
Bedient, P.B. and Huber, W.C. 1989. Hydrology and Floodplain Analysis. Addison-Wesley Publishing. Reading, Massachusetts.
Davis, S.N. and DeWiest, R.J. 1966. Hydrogeology. John Wiley and Sons. New York, New York.
Dorr, J.A. and Eschmann, D.F. 1990. The Geology of Michigan. University of Michigan, Ann Arbor.
Dunn, T. and Leopold, L.B. 1978. Water in environmental planning. W.H. Freeman and Co., New York.
Freeze, R.A. and Cherry, J.A. 1979. Groundwater. Prentice-Hall, Inc. Englewood Cliffs, New Jersey.
Todd, D.K. 1976. Groundwater Hydrology. John Wiley and Sons. New York, New York.
Source_Information:
Source_Citation:
Citation_Information:
Originator:
State of Michigan, Department of Natural Resoureces, Geological Survey, Farrand, W.R. and D.L. Bell.
Publication_Date: 1982
Title: Quaternary Geology of Michigan
Geospatial_Data_Presentation_Form: map
Source_Scale_Denominator: 1:250,000
Type_of_Source_Media: coverage/shapefile (?)
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1982
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: 1:250,000 Surficial Geology
Source_Contribution:
Digitzed from:
Farrand, W.R. and Bell, D.L. 1982. Quaternary geology of Michigan. State of Michigan Department of Natural Resources, Geological Survey, Lansing, Michigan. Color Map.
Source_Information:
Source_Citation:
Citation_Information:
Originator: United States Geological Survey
Publication_Date: 1997
Title: USGS National Elevation Dataset (NED) DEM 1:24,000
Geospatial_Data_Presentation_Form: raster digital data
Other_Citation_Details: +/- 1 m vertical accuracy
Source_Scale_Denominator: 1:24,000
Type_of_Source_Media: raster
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1997 <?>
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: USGS 30m DEM (1:24,000) with +/- 1m vertical resolution
Source_Contribution: Donwloaded from the USGS website, 1997
Source_Information:
Source_Citation:
Citation_Information:
Originator: USGS DEM
Publication_Date: 1997 <?>
Title: 1-ha DEM (1:100,000)
Geospatial_Data_Presentation_Form: raster digital data
Source_Scale_Denominator: 1:100,000
Type_of_Source_Media: electronic bulletin board
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: 1-ha DEM
Source_Contribution:
A 1-ha DEM was also used for creating this version of the Darcy Model, where higher-resolution DEMs (1:24,000) were not available. Consequently, there are some breaks in the resolution of the data, please be aware that these exist (eg., northeastern lower peninsula of Michigan).
Process_Step:
Process_Description:
To address some weaknesses of earlier Darcy models, specific weaknesses of earlier efforts were addressed in this version of the MRI-DARCY V.3 (IO).
Location-specific estimates of relative groundwater potential were highly dependent upon the resolution of the DEM and the cell size of the conductivity grid. This version of the Darcy Model was created using 7.5 minute (1:24,000) Digital Elevation Model (DEM; USGS 1997) with 1-m vertical accuracy.
The 1:250,000 geology map (Farrand and Bell 1982) was resampled using the corresponding grid cells to obtain conductivity estimates with similar cell size. Published maximum conductivity values for glacial drift were derived from Davis and DeWiest 1966; Dunn and Leopold 1972; Todd 1976; Freeze and Cherry 1979; Bedient and Huber 1989; Dorr and Eschman 1990.
Slope calculations in the Version 2 Map relied solely on the difference in elevation between the target cell and the maximum elevation of the entire buffer neighborhood, where slopes were estimated irrespective of how far from the focal cell the maximum elevation value occurred within the neighborhood. Only the end-points of the path were used to estimate hydraulic slope. If a deep valley occurred between the end-points, groundwater flow was assumed to continue from one side of the valley to the other in Version 2 model. Also, conductivity values along the flow path were not accounted for in previous models; the original model assumed the flow path had the same conductivity as each target cell.
A "transect template" (created in Visual Basic) was employed to address weaknesses of earlier Darcy models. The transect template consisted of 12 transects, 4 km in length, with headings spaced 30 degrees apart like the hours of a clock. Every 100 meters along each transect, corresponding cells from the DEM and conductivity grids were sampled to generate elevation and conductivity information about the potential flow path. These values were then used to compute delivery estimates along each transect, and transect values were summed for each target cell.
Model output was computed as a velocity value (m day-1) for each 30 m2 grid cell across Lower Michigan. Please refer to the document included in the citation information which contains much greater detail.
Process_Date: 2000
Process_Time: unknown
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Dr. Paul W. Seelbach
Contact_Organization:
Michigan Department of Natural Resources Fisheries Division, Institute for Fisheries Research
Contact_Position:
Michigan Department of Natural Resources Fisheries Division, Head of Research
Contact_Address:
Address_Type: mailing and physical address
Address: 212 Museums Annex Bldg, 1109 North University Ave.
City: Ann Arbor
State_or_Province: MI
Postal_Code: 48109-1084
Country: USA
Contact_Voice_Telephone: 734/ 663-3554 x108
Contact_Facsimile_Telephone: 734/ 663-9399
Contact_Electronic_Mail_Address: seelbacp@michigan.gov
Hours_of_Service: Monday - Friday 8:00 am - 5:00pm
Contact_Instructions: Please call or email with questions.
Process_Step:
Process_Description:
MICHIGAN RIVERS INVENTORY GROUNDWATER DELIVERY MODEL MRI-DARCY version 3.3 for Windows (Executeable readme text)
INTRODUCTION This program uses topographic slope derived from a digital elevation model (DEM) and conductivity grid of the same cell-size and extent within a GIS to produce predictions of spatial variation in shallow groundwater movement. The original program was written by Matthew Baker (meb@umich.edu) in December, 1999 and translated into Visual Basic by Matthew Baker and Suzanne Brunzell in March, 2001. It is intended for non-profit educational and research use and may be distributed freely. Users may reference the following:
Baker et al. 2003. A GIS model of subsurface water potential for aquatic resource inventory, assessment, and environmental management. Environmental Management 32:607-719.
A complete description and initial evaluation of model performance in MI may be found at: <http://rivers.snre.umich.edu/mri/darcy/>. This model owes its development to the Michigan Rivers Inventory Project (MRI) at the University of Michigan: <http://rivers.snre.umich.edu/mri/>. The MRI is a long-term, collaborative research effort between Dr. Paul Seelbach of the Institute for Fisheries Research, MI-Dept. of Natural Resources (IFR/MDNR) and Dr. Michael Wiley of the School of Natural Resources and Environment at the University of Michigan (SNRE/UM).
The purpose of this Windows-based version is to create a modeling program that is relatively easy to use, and fairly straightforward in function. Given the complexity of groundwater flows and the abstraction inherent in modeling, we do not expect that the model will be entirely transparent, nor entirely accurate, but we hope the program will.
SYSTEM REQUIREMENTS 1) This program is a memory hog in its present incarnation. It requires a quick processor as well as quite a bit of RAM and virtual memory. All of these parameters will influence program-running time. 2) It is important to remember to adjust your system's virtual memory parameters prior to running this program. Also, be aware that page swapping (a way of using available memory as virtual memory) is dependent upon Free Memory, so make sure to close all other programs while running this one. 3) Remember the program creates 6 output files, all of which were 1.2 GB for Lower Michigan, make sure you have enough storage space in your output directory of the program won't run. 4) For example, this program first ran on a 20MB section of Michigan (approximately the size of Washtenaw County) using a 600 mhz Pentium III with 128 MB RAM and 8GB Free Memory. It took about 5 minutes to load and another 40 minutes to complete processing. 5) For a section the size of Lower Michigan, the 1 GB files took about an hour to load and about 8 hours to complete processing.
INPUT REQUIREMENTS 1) GIS software: ArcGIS, ARC/INFO for UNIX or Windows, or ArcView with Spatial Analyst extension. 2) The program requires a Digital Elevation Model (DEM) and Hydrologic Conductivity raster grid. 3) We generated our conductivity grid using a Geology map and published conductivity values (m/day) for various geologic formations. Others have used soil maps such as STATSGO or SSURGO. 4) Both grids should be of the same cell-size, extent, and have the same horizontal units. 5) The vertical units of the DEM must be the same as the horizontal units (m). 6) The program will accept either floating point or integer grids, and will produce a floating-point output file regardless. 7) The grids should be converted to binary format using the following command in ARC/INFO: GRIDFLOAT <grid input file> <binary output file> In ArcView, grids may be converted by selecting the "Export Data Source" option under the File menu, and the "Binary Raster" option. Either operation will produce both binary files (*.flt in ArcView) and header files (*.hdr) for each grid. All four files are required for program execution. The program expects the binary files to have a *.dat extension, but *.flt will work just as well.

OPERATION INSTRUCTIONS 1) Double-click on the MRI-Darcy.exe icon to start the program. 2) The first input window requests the selection of the binary DEM file, DEM header, the binary Conductivity file, and the Conductivity file header. The button to the right of each text field will bring up a browsing window. 3) The fifth text field identifies the root name and directory location of the 3 output files. All of these files will have the same root name and all will be ASCII text files ready for conversion by ARC/INFO or ArcView. Each output file will have its own identifier. For example, the root name "Darcy" will produce a delivery model called "Darcy_posa.txt", a net delivery model called "Darcy_pmna.txt", and a "mass-balance model" called "Darcy_neta.txt". 4) All "b" versions use a spatial average of transect flux values, "a" versions use inverse-distance weighting. We have found "a" versions are marginally better in preliminary tests. 5) Below the text fields, the user has the option to set the tolerance for grid cell size equality. During our modeling efforts, we sometimes found it useful to be able to use slightly different size grid cells for convenience's sake, and 0.0005 is our default. We also discovered that errors in DEMs sometimes lead to inaccurate model predictions. Therefore, the user may set the minimum DEM elevation for use in the modeling process or use the minimum value of the DEM. Setting the minimum elevation to that of Lake Erie helped solve our problem during initial model runs. 6) Once all the text fields are complete, click on the "Next" button. The program will begin loading the data and checking the structure of the binary data. Files created in UNIX environment will have different byte structures than files created in Windows. The program will reconfigure the binary data if necessary. A loading window will remain on the screen until this process is complete. This process took a little over an hour for Lower Michigan, but actual performance may depend on your system. 7) The second input window allows users to alter various input parameters of the MRI-Darcy model. These parameters can alter the running time of the program significantly as well as hamper direct state-to-state comparisons and communication. Therefore, we recommend the use of the following initial parameters: interval length = 100 m, interval steps per transect = 40, number of transects = 12. 8) The "interval step length" controls the distances between interval samples along each transect. The "number of interval steps" controls the length of each transect and the initial amount of landscape that is used to generate the model predictions. Our default of 40 steps of 100 m means that each transect will initially be 4 km in length. The "number of transects" controls the detail of the areal representation of the sampled landscape. IMPORTANT: due to the nature of the drop-down list, users must highlight the desired number of transects by clicking on the text-box before proceeding to avoid a runtime error. 9) Click on the next buttons when ready to continue. A processing window will appear and remain onscreen until the program finishes. Processing time for the model can be significant, depending on your processor speed and RAM, so be ready to wait. A message box will notify you when processing has been completed.
PRODUCTS 1) All output will be in text format ready for conversion by the following command in ARC/INFO: ASCIIGRID <input text file> <grid output file> {float or int} Alternatively, ArcView users can select the "Import Data Source" option from the File Menu and decline the option to create an integer file. 2) There are 6 output files produced by this program, each of which may be converted into a raster grid. Our interpretation of the meaning of these files continues to evolve. The *_pos.txt files are estimates of groundwater loading potential. Values are the sum of transects with potential to contribute water to a given focal grid cell. We generally use this file for our estimates of stream accrual, stream baseflow, and water temperatures. Cell values are interpreted as a relative index of groundwater flow velocity. The *_pmn.txt files estimate input values if a given transect is allowed to simultaneously contribute to and withdraw water from a focal grid cell. Only net positive transects are summed for this model. Operationally, we haven't observed much of a difference between this and the first output, but it is included on the off chance it will be useful in other landscapes. The *_net.txt files are "mass-balance" estimates determined by summing all transect estimates regardless of their ability to contribute or withdraw from a focal grid cell. We use this file for understanding soil saturation due to net groundwater accumulation in wetlands, patterns of groundwater movement in low-relief landscapes, and from which parts of the landscape large portions of these contributions may originate. Cell values are interpreted as a relative index of groundwater flow velocity.
DISCLAIMER 1) This is the prototype version; it has been tested in MI but with our specific data sets. We are not professional programmers (this is our first attempt at VB). We have no idea what this will do on your computer, but it worked okay on ours. 2) Our models do not incorporate any information about actual hydraulic head nor subsurface stratigraphy. Therefore, they should be interpreted as estimates of groundwater potential only. This means that in coarse-textured watershed divide areas, potential delivery may be over-estimated due to the relative proximity of the actual watertable. These models assume that surface slopes are linearly related to water table slopes and that the conductivity estimates you provide are representative of the general patter of subsurface soils to conduct water. 3) Our velocity estimates are derived from the summed velocity estimates (slope * conductivity) of all the contributing transects. This index may be interpreted as an index of volume under the presumption that the velocity estimate of a single transect may be multiplied by an area (as represented by the sum of all 12 transects) to generate a volume estimate. 4) If you have any further questions, comments, great ideas and revelations, or if you just find this program and its products useful in some way, please email Matthew Baker: meb@umich.edu
Thanks and Good Luck!
Process_Date: <Unknown>
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Dr. Matthew Baker
Contact_Organization: Smithsonian Environmental Research Center
Contact_Position: Postdoctoral Fellow
Contact_Address:
Address_Type: mailing and physical address
Address: P.O. Box 28, 647 Contees Wharf Road
City: Edgewater
State_or_Province: Maryland
Postal_Code: 21037
Country: USA
Contact_Voice_Telephone: 443-482-2212
Contact_Facsimile_Telephone: 443-482-2380
Contact_Electronic_Mail_Address: meb@umich.edu
Hours_of_Service: Monda - Friday 8:00 - 5:00 pm
Contact_Instructions: Please email with questions.
Process_Step:
Process_Description:
This dataset was reprojected from UTM (Zone 16) NAD 27 to Michigan Georef NAD 83 using bilinear resampling with a grid cell size (X and Y) taken from the original dataset in UTM (26.355631m).
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Lidia Szabo Kraft
Contact_Organization: MDNR Institute for Fisheries Research, UM SNRE
Contact_Position: UM SNRE Research Associate
Contact_Voice_Telephone: 734/ 663-3554 x114
Contact_Facsimile_Telephone: 734/ 663-9399
Contact_Electronic_Mail_Address: kraftls@michigan.gov
Hours_of_Service: Monday - Friday 8:00 am - 5:00 pm
Process_Step:
Process_Description: Dataset moved.
Source_Used_Citation_Abbreviation:
E:\DWA_v1\Waters\Streams\GIS_Layers\Darcy_IO_mg\bilinear\darcy_io
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation:
S:\_Common\Projects\Digital_Water_Atlas\DWA\Waters\Streams\Darcy_model\metadata.xml
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Row_Count: 23067
Column_Count: 21026
Vertical_Count: 1
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Oblique Mercator
Oblique_Mercator:
Scale_Factor_at_Center_Line: 0.999600
Oblique_Line_Azimuth:
Azimuthal_Angle: 337.255560
Azimuth_Measure_Point_Longitude: -86.000000
Latitude_of_Projection_Origin: 45.309167
False_Easting: 2546731.496000
False_Northing: -4354009.816000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 30.000000
Ordinate_Resolution: 30.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: mi_darcy_v2.vat
Entity_Type_Definition: Darcy Potential Groundwater Movement Model
Entity_Type_Definition_Source: Michigan River Inventory
Attribute:
Attribute_Label: Count
Attribute_Definition: Count of cells with assigned value.
Attribute:
Attribute_Label: Rowid
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: VALUE
Attribute:
Attribute_Label: Value
Attribute_Definition:
Darcy Value (m day-1) by cell. It is Recommended that the grid be viewed using 1/4 standard deviations.
Attribute_Definition_Source:
As defined by: M.E. Baker, M.J. Wiley, P.W. Seelbach. 2003. GIS-based models of potential groundwater loading in glaciated landscapes: considerations and development in Lower Michigan. Michigan Department of Natural Resources Fisheries Research Report. In Press.
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -34753
Range_Domain_Maximum: 21803
Attribute_Units_of_Measure: (m day-1) by cell
Attribute:
Attribute_Label: COUNT
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Paul Seelbach
Contact_Organization: Inistitute for Fisheries Research, MI DNR Fisheries Division
Contact_Position: MI DNR Fisheries Division, Head of Research
Contact_Address:
Address_Type: mailing and physical address
Address: 212 Museums Annex Bldg., 1109 North University Ave.
City: Ann Arbor
State_or_Province: Michigan
Postal_Code: 48109-1084
Country: USA
Contact_Voice_Telephone: 734/ 663-3554 x 108
Contact_Facsimile_Telephone: 734/ 663-9399
Contact_Electronic_Mail_Address: seelbacp@michigan.gov
Hours_of_Service: Monday - Friday 8:00 - 5:00pm
Contact_Instructions: Please call or email with questions.
Resource_Description: Dataset available by request.
Distribution_Liability:
The School of Natural Resources and Environment at the University of Michigan, Ann Arbor & the Michigan Department of Natural Resources Fisheries Division's Institute for Fisheries Research assumes no liability for use or conclusions drawn from these data.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 296.038
Fees: no fee
Ordering_Instructions:
Please call or email with a request and we will answer as soon as we can.
Turnaround: as time permits
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Time_of_Day: unknown
Metadata_Reference_Information:
Metadata_Date: 20090429
Metadata_Review_Date: as needed
Metadata_Future_Review_Date: as needed
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Institute for Fisheries Research, MI DNR Fisheries Division, UM School of Natural Resources and Environment
Contact_Person: Lidia Szabo Kraft
Contact_Position: UM SNRE Research Associate
Contact_Address:
Address_Type: mailing and physical address
Address: 212 Museums Annex Bldg., 1109 North University Ave.
City: Ann Arbor
State_or_Province: Michigan
Postal_Code: 48109-1084
Country: USA
Contact_Voice_Telephone: 734/ 663-3554 x 114
Contact_Facsimile_Telephone: 734/ 663-9399
Contact_Electronic_Mail_Address: kraftls@michigan.gov
Hours_of_Service: Monday - Friday 8:00 am - 5:00 pm
Contact_Instructions:
Please call or email with questions. I borrowed heavily from the upcoming Michigan Department of Natural Resources Fisheries Research Report titled: Baker M.E., Wiley M.J., & P.W. Seelbach. GIS-based models of potential groundwater loading in glaciated landscapes: considerations and development in Lower Michigan. Michigan Department of Natural Resources Fisheries Reserach Report. In Press.
The authors generously provided this current set of information for my use. Please cite them appropriately. Thank you.
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Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None
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Generated by mp version 2.9.6 on Wed Apr 29 09:18:57 2009