Section 1	Identification Information
Originator	Canadian Forest Service
Title	Great Lakes Climate Data
Abstract	This data set is actually a series of sets brought together by NRRI. Only ten of many climate coverages from the original project were found to be relevant to this project. See lineage for original and used data sets.
Purpose	A base data layer.
Time Period of Content Date
Currentness Reference	Observed
Progress	Complete
Maintenance and Update Frequency	As needed
Spatial Extent of Data	Minnesota, Wisconsin, and Michigan
Bounding Coordinates	-97.293 -81.564 49.255 41.573
Place Keywords	Michigan, Minnesota, Wisconsin
Theme Keywords	Climate, mean, annual, Julian, temperature
Theme Keyword Thesaurus	None
Access Constraints	The data is available to Canadian Forest Service researchers and others (academic and government) for COLLABORATIVE research purposes.
Use Constraints	Acknowledgements for the use of this data would be appreciated. Please cite Dan McKenney (pers. comm) or McKenney Dan, Kestevan .J.L., Hutchinson M.F. and L.A. Venier . Canada's Plant Hardiness Zones revisited (in review).
Contact Person Information	Dan McKenney, Chief, Landscape Analysis and Applications Section Canadian Forest Service-Sault St. Marie Great Lakes Forestry Center, 1219 Queen St. E. Sault St. Marie, Ontario P6A5M7 Phone: 705-759-5740 ext 2316 FAX: 705-759-5700 E-mail: DMcKenne@nrcan.gc.ca
Browse Graphic File Name	none available
Browse Graphic File Description
Associated Data Sets
Section 2	Data Quality Information - - - - - - Go back to top
Attribute Accuracy	Not yet available
Logical Consistency	Not yet available
Completeness	Not yet available
Horizontal Positional Accuracy	Not yet available
Vertical Positional Accuracy	Not applicable
Lineage	The selected files that were extracted are as follows: anratemp - Annual range in temperature. grprecip - Growing season precipitation grseasjd - Growing season length in Julian days jdedgrow - Julian date end of the growing season jdstgrow - Julian data start of the growing season mamaxtem - Mean annual maximum temperature mamintem - Mean annual minimum temperature mgrsetem - Mean growing season temperature mnantemp - Mean annual temperature calculated from monthly values. temprang Temperature range for growing season Ten data sets were extracted from this larger project: These climate grids were subset from GLPF climate grids of the Great Lakes Region. Grids are at 5km cell resolution. Temperature values are in degrees Celsius, precipitation is in millimeters. 1) annual mean temp (calculated using monthly values) -(degrees Celsius) 2) mean diurnal range (mean) period max-min) - (degrees Celsius) 3) isothermality (2/7) - (degrees Celsius) 4) temperature seasonality (Coefficient of Variance) 5) max temperature of warmest period - (degrees Celsius) 6) min temperature of coldest period - (degrees Celsius) 7) temp annual range (5-6) - (degrees Celsius) 8) mean temp wettest quarter - (degrees Celsius) 9) mean temp driest quarter - (degrees Celsius) 10) mean temp warmest quarter - (degrees Celsius) 11) mean temp coldest quarter - (degrees Celsius) 12) annual precip (mm) 13) precip of the wettest period - (mm) 14) precip of the driest period - (mm) 15) precip seasonality (coefficient of variance) 16) precip of the wettest quarter - (mm) - quarter is a three month period which can vary spatially 17) precip of the driest quarter - (mm) 18) precip of the warmest quarter - (mm) 19) precip of the coldest quarter - (mm) 20) julian date start of growing season - the julian day number of the last day of 5 consecutive days when the mean daily temperature is above 5 degrees Celsius. These five days to begin no sooner than March 1 and end by the 31st of July. 21) julian date end of growing season - the julian day number of the first day from August 1st with a minimum temperature less than -2 degrees Celsius. 22) growing season duration (26-25) - (julian days) period definitions: period 1 = 3 months priors to growing season period 2 = six weeks from start of growing season period 3 = the total growing season period 4 = period 3 minus period 223) percip. period 1 - (mm) 24) precip. period 2 - (mm)25) precip. period 3 - (mm) 26) precip. period 4 - (mm) 27) growing degree days above base temp. period 1 - (no. of gdds) 28) growing degree days above base temp. period 2 - (no. of gdds) 29) return. growing degree days above base temp. period 3 - (no. of gdds) 30) growing degree days above base temp. period 4 - (no. of gdds) - growing degree day = an accumulated heat unit using 50F as base temp 31) annual mean temperature - (degrees Celsius) 32) annual minimum temperature - (degrees Celsius) 33) annual maximum temperature - (degrees Celsius) 34) mean temp. for period 3 - (degrees Celsius) 35) temp range for period 3 - (degrees Celsius) Data was clipped with the 50 km lake superior basin boundary, and split into county coverages for the US side. It was left whole for the canadian side.
Source Scale Denominator
Section 3	Spatial Data Organization Information - - - - - - Go back to top
Native Data Set Environment	UNIX-ARC/INFO Ver. 7.1.2, Sun Solaris operating system
Geographic Reference for Tabular Data	None
Spatial Object Type	Raster
Vendor Specific Object Types
Tiling Scheme	Counties
Section 4	Spatial Reference Information - - - - - - Go back to top
Horizontal Coordinate Scheme	Geographic (Lat. Long.)
Ellipsoid	GRS80
Horizontal Datum	NAD83
Horizontal Units	Meters
Distance Resolution	5 km
Altitude Datum	Not applicable
Depth Datum	Not applicable
Map Projection Name	Albers Equal Area
Map Projection Parameters	Standard Parallel: 29.5 Standard Parallel: 45.5 Longitude Of Central Meridian: -96 Latitude Of Projection Origin: 23 False Easting: 0 False Northing: 0
Other Coordinate System's Definition	Planar Coordinate Encoding Method: Coordinate Pair Abscissa Resolution: 1 Ordinate Resolution: 1 Semi-Major Axis: 6378206.4 Denominator of Flattening Ratio: 294.98
Section 5	Entity and Attribute Information - - - - - - Go back to top
Entity and Attribute Overview	The selected files that were extracted are as follows: anratemp - Annual range in temperature. grprecip - Growing season precipitation grseasjd - Growing season length in Julian days jdedgrow - Julian date end of the growing season jdstgrow - Julian data start of the growing season mamaxtem - Mean annual maximum temperature mamintem - Mean annual minimum temperature mgrsetem - Mean growing season temperature mnantemp - Mean annual temperature calculated from monthly values. temprang Temperature range for growing season Attribute information is limited because of the grid type used as a basis for all extracted coverages.
Entity and Attribute Detailed Citation	None
Section 6	Distribution Information - - - - - - Go back to top
Publisher	Natural Resources Research Institute
Publication Date	Unpublished material
Contact Person Information	Gerald Sjerven, GIS Specialist Natural Resources Research Institute 5013 Miller Trunk Hwy Duluth, Minnesota 55811 Phone: (218)-720-4388 FAX: (218)-720-4328 E-mail: gsjerven@sage.nrri.umn.edu
Distributor's Data Set Identifier
Distribution Liability	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. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The University of Minnesota shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Transfer Format Name	ARC/Info export format
Transfer Format Version Number
Transfer Size
Ordering Instructions
Online Linkage	Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" above.
Section 7	Metadata Reference Information - - - - - - Go back to top
Metadata Date	08/25/1999
Contact Person Information	Joel Nelson, GIS Intern Natural Resource Research Institute 5013 Miller Trunk Highway Duluth, Minnesota 55811 Phone: (218)-720-4254 FAX: (218)-720-4328 E-mail: jnelson@sage.nrri.umn.edu
Metadata Standard Name	Minnesota Geographic Metadata Guidelines
Metadata Standard Version	Datalogr 2.01
Metadata Standard Online Linkage	http://www.lmic.state.mn.us/gc/stds/metadata.htm

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