Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 1999
Title: Digital representation of "Atlas of United States Trees" by Elbert L. Little, Jr.
Edition: Digital Version 1.0
Geospatial_Data_Presentation_Form: map
Online_Linkage: http://esp.cr.usgs.gov/info/veg-clim/
Description:
Abstract: These maps are a digital representation of the individual tree species range maps of the "Atlas of the United States Trees" by Elbert L. Little, Jr. The atlas shows the natural distribution or range of the native tree species of North America. These coverages represent 3 volumes of the atlas.
Purpose: To create a digital representation of the vegetation range maps published in "Atlas of United States Trees" by Elbert L. Little, Jr.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1999
Currentness_Reference: Publication date
Status:
Progress: In work
Maintenance_and_Update_Frequency: Irregularly
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -180.0
East_Bounding_Coordinate: -50.0
North_Bounding_Coordinate: 83.0
South_Bounding_Coordinate: 7.0
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: vegetation
Theme_Keyword: climate
Theme_Keyword: trees
Theme_Keyword: hardwoods
Theme_Keyword: conifers
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: United States
Place_Keyword: North America
Place_Keyword: Alaska
Place_Keyword: Alabama
Place_Keyword: Arizona
Place_Keyword: Arkansas
Place_Keyword: California
Place_Keyword: Colorado
Place_Keyword: Connecticut
Place_Keyword: Delaware
Place_Keyword: Florida
Place_Keyword: Georgia
Place_Keyword: Idaho
Place_Keyword: Illinois
Place_Keyword: Indiana
Place_Keyword: Iowa
Place_Keyword: Kansas
Place_Keyword: Kentucky
Place_Keyword: Louisiana
Place_Keyword: Maine
Place_Keyword: Maryland
Place_Keyword: Massachusetts
Place_Keyword: Michigan
Place_Keyword: Minnesota
Place_Keyword: Mississippi
Place_Keyword: Missouri
Place_Keyword: Montana
Place_Keyword: Nebraska
Place_Keyword: Nevada
Place_Keyword: New Hampshire
Place_Keyword: New Jersey
Place_Keyword: New Mexico
Place_Keyword: New York
Place_Keyword: North Carolina
Place_Keyword: North Dakota
Place_Keyword: Ohio
Place_Keyword: Oklahoma
Place_Keyword: Oregon
Place_Keyword: Pennsylvania
Place_Keyword: Rhode Island
Place_Keyword: South Carolina
Place_Keyword: South Dakota
Place_Keyword: Tennessee
Place_Keyword: Texas
Place_Keyword: Utah
Place_Keyword: Vermont
Place_Keyword: Virginia
Place_Keyword: Washington
Place_Keyword: Washington D.C.
Place_Keyword: West Virginia
Place_Keyword: Wisconsin
Place_Keyword: Wyoming
Place_Keyword: Canada
Place_Keyword: Mexico
Place_Keyword: USA
Place_Keyword: U.S.
Access_Constraints: None
Use_Constraints: None
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Robert S. Thompson
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing
Address:
Denver Federal Center
MS 980, Box 25046
City: Denver
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: USA
Contact_Voice_Telephone: 303-236-5347
Contact_Facsimile_Telephone: 303-236-5349
Contact_Electronic_Mail_Address: rthompson@usgs.gov
Native_Data_Set_Environment:
SunOS, 5.5.1, sun4d UNIX
ARC/INFO version 7.1.1
Browse_Graphic:
Browse_Graphic_File_Name: Available at
Browse_Graphic_File_Description: individual browse graphics are available for each map.
Browse_Graphic_File_Type: PDF
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: The single user-defined attribute ("code") has an enumerated domain (values of 0 or 1 only), so numerical measures of accuracy are not applicable. The data sets were checked for attribute accuracy by visually comparing color-coded plots of each dataset with the source maps.
Logical_Consistency_Report: In some instances, data for the United States portions of the maps were derived from source maps at 1:10,000,000 scale and the portions outside the United States were derived from sources at approximately 1:27,000,000 scale. The coverages were checked for node, intersection, and duplication errors and corrected when necessary. All polygons were snapped closed at nodes.
Completeness_Report:
All polygons on the printed source maps are represented in the digital coverages.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: At least 90% of the points tested on hard copy printout are within 1/50 inch (0.5mm) of the source data.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Little, Elbert L., Jr.
Publication_Date: 1971
Title: Atlas of United States Trees, Volume 1: Conifers and Important Hardwoods
Geospatial_Data_Presentation_Form: Atlas
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1971
Source_Currentness_Reference: Publication date
Source_Citation_Abbreviation: Little, 1971
Source_Contribution: Distribution and extents of tree species.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Little, Elbert L., Jr.
Publication_Date: 1976
Title: Atlas of United States Trees, Volume 3: Minor Western Hardwoods
Geospatial_Data_Presentation_Form: Atlas
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1976
Source_Currentness_Reference: Publication Date
Source_Citation_Abbreviation: Little, 1976
Source_Contribution: Distribution and extents of tree species.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Little, Elbert L., Jr.
Publication_Date: 1977
Title: Atlas of United States Trees, Volume 4: Minor Eastern Hardwoods
Geospatial_Data_Presentation_Form: Atlas
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1977
Source_Currentness_Reference: Publication date
Source_Citation_Abbreviation: Little, 1977
Source_Contribution: Distribution and extents of tree species.
Process_Step:
Process_Description: The coverage was created by scanning the map of each species range from the book, registering to a county coverage at 1:2,000,000 scale using the ARC/INFO REGISTER command, and rectifying.
Process_Date: 1999
Process_Step:
Process_Description: Digitized ploygon boundaries on screen using scanned and registered images as reference.
Process_Date: 1999
Process_Step:
Process_Description: Added CODE attributes to coverages; assigned attribute of 1 to polygons representing presence of plant species and 0 to all other polygons.
Process_Date: 1999
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.01
Longitude_Resolution: 0.01
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.98
Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview: The only user defined attribute is "code". Polygons attributed with a 1 denotes presence of the tree species in that area. A code attribute of O indicates that the species is absent.
Entity_and_Attribute_Detail_Citation: none
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Randall Schumann
Contact_Address:
Address_Type: mailing
Address:
Denver Federal Center
MS 980, Box 25046
City: Denver
State_or_Province: CO
Postal_Code: 80225-0046
Country: USA
Contact_Voice_Telephone: (303) 236-1525
Contact_Electronic_Mail_Address: rschumann@usgs.gov
Contact_Facsimile_Telephone: (303) 236-5349
Distribution_Liability:
Although these data have been used by the U.S. Geological Survey,
U.S. Department of the Interior, no warranty expressed or implied
is made by the U.S. Geological Survey as to the accuracy of the
data.
The act of distribution shall not constitute any such warranty,
and no responsibility is assumed by the U.S. Geological Survey in
the use of this data, software, or related materials.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ArcView Shapefile
File_Decompression_Technique:
.ZIP files are archives for DOS/Windows computer systems. To extract them, use WinZip, PKzip, or similar programs.
.tar.gz files are gzip-compressed TAR archives. On a UNIX system, the following command can be used to extract the files: "gunzip .tar.gz|tar xvf -"
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://esp.cr.usgs.gov/data/atlas/little/
Fees: None
Metadata_Reference_Information:
Metadata_Date: 19990928
Metadata_Review_Date: 19990927
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Sharon Smith
Contact_Position: GIS Computer Specialist
Contact_Address:
Address_Type: mailing
Address:
Denver Federal Center
MS 980, Box 25046
City: Denver
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: USA
Contact_Voice_Telephone: 303-236-4610
Contact_Facsimile_Telephone: 303-236-5349
Contact_Electronic_Mail_Address: ssmith@climate.cr.usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata ("CSDGM version 2")
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: none
Metadata_Use_Constraints: none