USGS:Biology Biological Informatics Program Vegetation Characterization Program Congaree National Park Accuracy Assessment Metadata

Accuracy Assessment Metadata

Metadata also available as - [Questions & Answers] - [Text] - [Adobe Acrobat pdf file].

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:

L. L. Gaddy, Ph. D. terra incognita 2333 Terrace Way Columbia, South Carolina 29205 and Kerry Brooks, Ph. D. Department of Planning School of Landscape Architechure and Planning Clemson University Clemson, South Carolina 29631

Publication_Date: 200005

Title:

Congaree National Park Accuracy Assessment of the Vegetation Mapping Products

Geospatial_Data_Presentation_Form: database and report

Series_Information:

Series_Name: USGS-NPS Vegetation Mapping Program

Issue_Identification: Congaree National Park

Publication_Information:

Publication_Place: Denver, CO

Publisher:

USGS, Biological Resources Division, Center for Biological Informatics

Other_Citation_Details: Created under contract to the USGS-BRD-CBI.

Online_Linkage:

<http://biology.usgs.gov/npsveg/cong/index.html>

Description:

Abstract:

An assessment of the accuracy of a provisional vegetation map of Congaree National Park.

Purpose:

Part of a USGS-National Park Service effot to produce vegetation maps of all the nation's national parks.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 199910

Ending_Date: 200005

Currentness_Reference: Dates of field sampling

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None Planned

Spatial_Domain:

Description_of_Geographic_Extent:

Congaree National Park is located approximately 15 miles southeast of Columbia, the state capitol of South Carolina. Old Bluff Highway (old Highway 48) lies just north of the Park boundary. The eastern boundary is located just northwest of the confluence of the Congaree and Wateree Rivers. The Park extends west to where Cedar Creek and Myers Creek join.

Bounding_Coordinates:

West_Bounding_Coordinate: -80.85

East_Bounding_Coordinate: -80.67083

North_Bounding_Coordinate: 33.84167

South_Bounding_Coordinate: 33.75

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: National Park Service

Theme_Keyword: U.S. Geological Service

Theme_Keyword: The Nature Conservancy

Theme_Keyword: Aerial Information Systems

Theme_Keyword: Center for Biological Informatics

Theme_Keyword: land cover

Theme_Keyword: vegetation

Theme_Keyword: community

Theme_Keyword: association

Theme_Keyword: accuracy assessment

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Congaree National Park

Place_Keyword: South Carolina

Place_Keyword: USA

Taxonomy:

Keywords/Taxon:

Taxonomic_Keyword_Thesaurus: None

Taxonomic_Keywords: Plant Communities

Taxonomic_Keywords: National Vegetation Classification System

Taxonomic_System:

Classification_System/Authority:

Classification_System_Citation:

Citation_Information:

Originator:

United States Department of the Interior National Biological Survey and National Park Service

Publication_Date: 19941101

Title:

Standardized National Vegetation Classification System

Edition: Version 1

Geospatial_Data_Presentation_Form: Document - Classification System

Series_Information:

Series_Name: NBS/NPS Vegetation Mapping Program

Issue_Identification: Final Draft

Publication_Information:

Publication_Place: Redlands, California

Publisher: ESRI

Other_Citation_Details: Prepared by the Nature Conservancy

Classification_System_Modifications:

The criteria differs primarily in that the height and density variables were not mapped at Congaree. Instead, two additional variables were addressed: pre-hurricane Hugo community types and areas of pine that have been logged since the time of the 1976 aerial photography.

Identification_Reference:

Citation_Information:

Originator:

United States Department of the Interior National Biological Survey and National Park Service

Publication_Date: 19941101

Title:

Standardized National Vegetation Classification System

Edition: Version 1

Geospatial_Data_Presentation_Form: Classification System

Series_Information:

Series_Name: NBS/NPS Vegetation Mapping Program

Issue_Identification: Final Draft

Publication_Information:

Publication_Place: Redlands, California

Publisher: ESRI

Other_Citation_Details: Prepared by the Nature Conservancy

Taxonomic_Procedures:

See "Photo Interpretation Report, BRD/NPS Vegetation and Inventory and Mapping Program, Congaree National Park," October 12, 1998 <http://biology.usgs.gov/npsveg/cong/congpirpt.pdf>

General_Taxonomic_Coverage:

Vegetation Alliances of the National Vegetation Classification System (October 1995)

Taxonomic_Classification:

Taxon_Rank_Name: Kingdom

Taxon_Rank_Value: Plantae

Applicable_Common_Name: s: Plants

Access_Constraints: None

Use_Constraints:

Any person using the information presented here should fully understand the data collection and compilation procedures, as described in these metadata, before beginning analysis. The burden for determining fitness for use lies entirely with the user. For purposes of publication or dissemination, citations should be given to the U.S. Geological Survey and the National Park Service

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: USGS-NPS Vegetation Mapping Program Coordinator

Contact_Organization:

U.S. Geological Survey, Biological Resources
Division, Center for Infomatics

Contact_Address:

Address_Type: Physical Address

Address: U.S. Geological Survey, Biological Resources Division

Address: Center for Biological Informatics

Address: Building 810, Room 8000

City: Denver

State_or_Province: Colorado

Postal_Code: 80225-0046

Country: USA

Contact_Address:

Address_Type: Mailing Address

Address: U.S. Geological Survey, Biological Resources Division

Address: Center for Biological Informatics

Address: PO BOX 25046, DFC, MS302

City: Denver

State_or_Province: Colorado

Postal_Code: 80225-0046

Country: USA

Contact_Voice_Telephone: (303) 202-4220

Contact_Facsimile_Telephone: (303) 202-4219 (org)

Contact_Facsimile_Telephone: (303) 202-4229

Contact_Electronic_Mail_Address: gs-b-npsveg@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name: <http://biology.usgs.gov/npsveg/cong/images/congaa.pdf>

Browse_Graphic_File_Description:

376 Kbyte, locations of accuracy assessment sites; low resolution for web browsing.

Browse_Graphic_File_Type: PDF

Security_Information:

Security_Classification_System: None

Security_Classification: None

Security_Handling_Description: None

Native_Data_Set_Environment: Microsoft Access mdb

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

For accuracy assessment, a field visit was made to 585 points between October, 1999 and May 2000. Points were located through the use of a PLGR GPS unit and false-color infrared photographs. At each point dominant vegetation types were recorded and a field key was used to determine the plant community / cover type present. Over 85 percent of the points were reached on foot, the remainder were located by boat. When all of the points were visited, two tables were generated comparing the field interpretation of the polygons with that of the photointerpreters. The final accuracy assessment was performed through a statistical analysis of the data using contingency tables and statistical tests. Most of the problems noted were related to map class definition and terminology and did not involve map accuracy per se. Through the use of contingency tables and other statistics, the overall accuracy of the provisional map was calculated as 87 percent. The statistics from only one class, the "Celtis laevigata - Liquidambar styraciflua - Quercus laurifolia / Carpinus caroliniana / Arundinaria gigantea / Carex lupulina Forest-Sweetgum component" failed to meet the NPS 80 percent accuracy standards. Data indicates that this class may be undermapped, being more widespread than was actually mapped. See "Summary Report on the Results of an Accuracy Assessment of the National Park Service's Provisional Vegetation Map of Congaree National Park" at <http://biology.usgs.gov/npsveg/cong/aa_rpt.pdf> for further details.

Logical_Consistency_Report:

All polygon features are checked for topology using the ARC/INFO software.

Completeness_Report:

A field visit was made to 585 points between October, 1999 and May 2000. Points were located through the use of a PLGR GPS unit and false-color infrared photographs. At each point dominant vegetation types were recorded and a field key was used to determine the plant community / cover type present. Over 85 percent of the points were reached on foot, the remainder were located by boat.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Accuracy assessment points were located through the use of a PLGR GPS unit and false-color infrared photographs. It is estimated that the locations were accurate to within plus or minus 10 meters.

Lineage:

Methodology:

Methodology_Type: Field

Methodology_Description:

Following National Park Service Accuracy Assessment guidelines for Protocols A-D, Dr. Brooks generated a stratified random sample of 596 points through the Park. Following National Park Service Protocol E, Dr. Brooks also generated a non-random sample of 32 points which were termed "unique signatures" by AIS personnel (SEE LITTLESAM for Protocol E data). Maps of both sets of points, UTM coordinates, and other pertinent data were given to Dr. L. L. Gaddy, who was in charge of the field portion of the accuracy assessment. (Dr. Gaddy did not know which class the photointerpreters had assigned to a given polygon when he conducted his field work; he could, however, see the polygon boundaries on the map.)

As USGS-NPS protocol dictated, Gaddy visited 585 points from October, 1999 through May 2000. Points were located through the use of a PLGR GPS unit and false-color infrared photographs. At each point dominant vegetation types were recorded and a field key was used to determine the plant community/cover type present. Over 85 percent of the points were reached on foot, the remainder were located by boat.

When all of the points had been visited, Dr. Gaddy complete the two tables comparing his field interpretation of the polygon with that of the photointerpreters. Dr. Brooks then performed the final accuracy assessment through a statistical analysis of the data using contingency tables and statistical tests (see CROSS 1, CROSS 2, AND CROSS 3).

Methodology_Citation:

Citation_Information:

Originator:

L. L. Gaddy, Ph. D. terra incognita 2333 Terrace Way Columbia, South Carolina 29205 and Kerry Brooks, Ph. D. Department of Planning School of Landscape Architechure and Planning Clemson University Clemson, South Carolina 29631

Publication_Date: 200005

Title:

Summary Report on the Results of an Accuracy Assessment of the National Park Service's Provisional Vegetation Map of Congaree National Park

Geospatial_Data_Presentation_Form: Report

Publication_Information:

Publication_Place: Denver, CO

Publisher: USGS, BRD, Center for Biological Informatics

Other_Citation_Details: Created under contract to the USGS-BRD-CBI.

Online_Linkage: <http://biology.usgs.gov/npsveg/cong/aa_rpt.pdf>

Process_Step:

Process_Description: See Methodology Description above

Process_Date: 1999-2000

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 17

Transverse_Mercator:

Longitude_of_Central_Meridian: -81

Latitude_of_Projection_Origin: 0

False_Easting: 500000

False_Northing: 0

Scale_Factor_at_Central_Meridian: 0.9996

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 1

Ordinate_Resolution: 1

Planar_Distance_Units: Meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodedic Reference System 80

Semi-major_Axis: 6378137

Denominator_of_Flattening_Ratio: 298.257

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

At each point, dominant vegetation types were recorded and a field key was used to determine the plant community / cover type present.

Entity_and_Attribute_Detail_Citation:

Grossman, D. Et al. 1994. National Park Service Vegetation Mapping Project, Standardized National Vegetation Classification System 209 pp.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: USGS-NPS Vegetation Mapping Program Coordinator

Contact_Organization:

U.S. Geological Survey, Biological Resources
Division, Center for Infomatics

Contact_Address:

Address_Type: Mailing Address

Address: USGS

Address: Biological Resources Division

Address: Center for Infomatics

Address: PO Box 25046, DFC, MS302

City: Denver

State_or_Province: Colorado

Postal_Code: 80225-0046

Country: USA

Contact_Voice_Telephone: (303) 202-4220

Contact_Facsimile_Telephone: 303-202-4229

Contact_Facsimile_Telephone: 303-202-4219 (org)

Contact_Electronic_Mail_Address: gs-b-npsveg@usgs.gov

Resource_Description: cong Veg Map

Distribution_Liability:

The U.S. Geological Survey and the National Park Service shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data and related graphics (if available) are not legal documents and are not intended to be used as such.

The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular. Any related graphics (if available) are intended to aid the data user in acquiring relevant data; it is not approriate to use the related graphics as data.

The U.S. Geological Survey and the National Park Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data are directly acquired from an U.S. Geological Survey and National Park Service servers and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the utility of the data on another 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 also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. Mention of trade names or commercial products in this metadata report does not constitute endorsement or recommendation for use by the U. S. Department of the Interior, U. S. Geological Survey and National Park Service.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: HTML

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

<http://biology.usgs.gov/npsveg/cong/index.html>

Fees: None

Metadata_Reference_Information:

Metadata_Date: 200110

Metadata_Review_Date: 20081022

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USGS-NPS Vegetation Mapping Program Coordinator

Contact_Address:

Address_Type: mailing and physical address

Address:

U.S. Geological Survey, Center for Biological Informatics, MS 302,
Room 8000, Building 810, Denver Federal Center

City: Denver

State_or_Province: Colorado

Postal_Code: 80225

Country: USA

Contact_Voice_Telephone: (303) 202-4220

Contact_Facsimile_Telephone: (303) 202-4219

Contact_Electronic_Mail_Address: gs-b-npsveg@usgs.gov

Metadata_Standard_Name:

FGDC-STD-001.1-1999 Content Standard for Digital Geospatial Metadata, 1998 Part 1: Biological Data Profile, 1999

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Extensions:

Online_Linkage:

<http://metadata.nbii.gov/portal/community/Communities/Toolkit/Metadata/FGDC_Metadata/>

Profile_Name: Biological Data Profile FGDC-STD-001.1-1999