Digital representation of "Atlas of United States Trees" by Elbert L. Little, Jr.

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

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 <http://esp.cr.usgs.gov/data/atlas/little/>

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 <filename>.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