Metadata: Identification_Information: Citation: Citation_Information: Originator: Kurt Riitters, Southern Appalachian Field Laboratory, Biological Resources Division, U.S. Geological Survey Publication_Date: 1998 Title: "fd3scal" Edition: 1 Geospatial_Data_Presentation_Form: Map Publication_Information: Publication_Place: Norris, TN Publisher: Tennessee Valley Authority Description: Abstract: This dataset is a grid map that portrays the intersection of three other maps of forest interior habitat (fdh9-90, fdh27-90, fdh81-90; see separate metadata documents). This map identifies those pixels for which the 'forest interior habitat' score was rated as 'suitable' in each of the three input maps. That is, this map identifies pixels (at the 270 meter resolution of the input maps) with apparently 'suitable habitat' scores when the scores were calculated at the three scales represented in the other maps. Purpose: These data were originally created as part of an assessment of landscape conditions in the mid-Atlantic region (SFR 3) based on digital land cover maps derived from remote sensing (TM) and produced by the Multi-Resolution Land Characteristics Consortium. The forest interior habitat maps portray relative habitat conditions, considering only forest versus non-forest cover types, and for a single spatial scale. The map was presented as a surface map for visualization purposes, and was also summarized by watershed for assessment purposes. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1991 Ending_Date: 1993 Currentness_Reference: Dates of satellite imagery. Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -84 degrees West East_Bounding_Coordinate: -74 degrees West North_Bounding_Coordinate: 43 degrees North South_Bounding_Coordinate: 36 degrees North Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: pattern Theme_Keyword: landcover Theme_Keyword: United States Theme_Keyword: forest Theme_Keyword: area density Place: Place_Keyword_Thesaurus: None Place_Keyword: United States Place_Keyword: Standard Federal Region III Access_Constraints: None Use_Constraints: None Point_of_Contact: Contact_Information: Contact_Person_Primary: Bruce Jones Contact_Person: Contact_Organization: EPA Landscape Ecology Division Contact_Address: Address_Type: mailing and physical address Address: U.S. Environmental Protection Agency, Box 93478 City: Las Vegas State_or_Province: Nevada Postal_Code: 89193-3478 Contact_Electronic_Mail_Address: jones.bruce@epamail.epa.gov Data_Set_Credit: The basic data from which this map was derived were provided by the Multi-Resolution Land Characteristics Consortium. Native_Data_Set_Environment: These data are presently stored in ARC/INFO GRID format. Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: See reports for the three input maps (fdh9-90, fdh27-90, fdh81-90). The present map is simply the result of an overlay operation. Like other indices, this index is best interpreted as a relative value, in comparison to other pixels on the same map. Comparisons with other maps prepared from different data sources or at different scale are tenuous. Logical_Consistency_Report: All cell values are in the range [1,2]. Completeness_Report: Every cell in the original land cover map has a non-zero byte value representing the apparent habitat suitability. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The positional accuracy of the forest interior habitat map is the same as the positional accuracy of the land cover map from which the habitat map was derived. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Publication_Date: 1996 Title: U.S. Federal Region III Land Cover Data Set Edition: 1 Geospatial_Data_Presentation_Form: remote-sensing image Series_Information: Series_Name: U.S. Federal Region III Publication_Information: Publication_Place: Publisher: Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1991 Ending_Date: 1993 Source_Currentness_Reference: Dates of satellite imagery. Source_Citation_Abbreviation: fdh9-90, fdh27-90, fdh81-90 Source_Contribution: maps of 'apparently suitable interior forest habitat' at three scales of calculation. Source_Information: Source_Citation: Citation_Information: Other_Citation_Details: Riitters, K.H., O'Neill, R.V., and Jones, K. B. 1997. Assessing habitat suitability at multiple scales: a landscape-level approach. Biological Conservation 81:191-202. Process_Step: Process_Description: Overlaying three maps to produce one summary map The GRID module of ARC/INFO was used. The following pseudocode applies: For each pixel // count the number of scales with code '2' Temp := 0 If fdh9-90 == 2 then temp = temp+1 If fdh27-90 == 2 then temp = temp+1 If fdh81-90 == 2 then temp = temp+1 Fdenscales = temp // set new grid value to the number of scales found End (for each pixel) Fdenscales2 = con(fdh9-90 > 0, fdenscales) //sets background to null Fd3scal = con(fdenscales2 eq 3, 2, 1) // sets summary grid to '2' if three scales // supported, otherwise set to '1' Source_Used_Citation_Abbreviation: fdh9-90, fdh27-90, fdh81-90 Source_Produced_Citation_Abbreviation: fd3scal Process_Date: 1996 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: Column_Count: Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Lambert_Azimuthal Lambert_Azimuthal: Radius of Sphere of Reference: 6370997 Longitude_of_Central_Meridian: -100 0 0 Latitude_of_Projection_Origin: 45 0 0 False_Easting: 0.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: Row and column Coordinate_Representation: Abscissa_Resolution: Ordinate_Resolution: Planar_Distance_Units: meters Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: fd3scal.VAT Entity_Type_Definition: Value attribute table of fd3scal grid cells Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: VALUE Attribute_Definition: Byte value representation of interior forest habitat index. Attribute_Definition_Source: software computed Attribute_Domain_Values: Range_Domain: Range_Domain_Maximum: 2 (integer) Range_Domain_Minimum: 0 (integer) Attribute_Measurement_Frequency: None planned Attribute: Attribute_Label: COUNT Attribute_Definition: Number of grid cells with indicated VALUE Attribute_Definition_Source: software computed Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: positive integer Range_Domain_Maximum: positive integer Attribute_Measurement_Frequency: None planned Overview_Description: Entity_and_Attribute_Overview: The value attribute table associated with this raster: DATAFILE NAME: fd3scal.VAT 2 ITEMS: STARTING IN POSITION 1 COL ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME INDEXED 01 VALUE 4 10 B - - Indexed 05 COUNT 4 10 B - - - Entity_and_Attribute_Detail_Citation: Not available Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Bruce Jones Contact_Organization: EPA Landscape Ecology Division Contact_Address: Address_Type: Address: U.S. Environmental Protection Agency, Box 93478 City: Las Vegas State_or_Province: Nevada Postal_Code: 89193-3478 Contact_Electronic_Mail_Address: jones.bruce@epamail.epa.gov Metadata_Reference_Information: Metadata_Date: 19981014 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Kurt Riitters Contact_Organization: U.S. Geological Survey- Biological Resources Division Contact_Address: Address_Type: mailing and physical address Address: NCSU Forestry Dept. Address: 3024-C Biltmore Hall, NCSU City: Raleigh State_or_Province: NC Postal_Code: 27695-8002 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: 19940608 Metadata_Security_Information: Metadata_Security_Classification_System: None Metadata_Security_Classification: Unclassified Metadata_Security_Handling_Description: None