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

Accuracy Assessment Metadata

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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: The Pennsylvania Science Office of The Nature Conservancy

Publication_Date: 20051231

Title: gett_veg_aa_2005

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage:

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

Larger_Work_Citation:

Citation_Information:

Originator: The Pennsylvania Science Office of The Nature Conservancy

Publication_Date: 20051231

Title:

Vegetation Classification and Mapping at Gettysburg National Military Park and Eisenhower National Historic Site

Geospatial_Data_Presentation_Form: report

Description:

Abstract:

Location of thematic accuracy assessment sampling points used in the vegetation classification and mapping of Gettysburg National Military Park and Eisenhower National Historic Site.

Purpose:

To identify the locations of sampling points used assess the thematic accuracy of the Gettysburg National Military Park and Eisenhower National Historic Site association map.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20051231

Currentness_Reference: 20051231

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Description_of_Geographic_Extent:

Gettysburg National Military Park and Eisenhower National Historic Site and environs

Bounding_Coordinates:

West_Bounding_Coordinate: -77.280351

East_Bounding_Coordinate: -77.155395

North_Bounding_Coordinate: 39.855883

South_Bounding_Coordinate: 39.774649

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: thematic accuracy assessment

Theme_Keyword: vegetation community classifcation

Theme_Keyword: vegetation association map

Theme_Keyword: National Park Service

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Gettysburg National Military Park

Place_Keyword: Pennsylvania

Place_Keyword: Eisenhower National Historic Site

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: Johnstown Flood National Memorial

Place_Keyword: Pennsylvania

Taxonomy:

Keywords/Taxon:

Taxonomic_Keyword_Thesaurus: None

Taxonomic_Keywords: Standardized National Vegetation Classification System

Taxonomic_Keywords: vegetation classification

Taxonomic_Keywords: alliance

Taxonomic_Keywords: community association

Taxonomic_Classification:

Taxon_Rank_Name: Kingdom

Taxon_Rank_Value: Plantae

Access_Constraints: none

Use_Constraints: none

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: The Pennsylvania Science Office of The Nature Conservancy

Contact_Position: Ecologist

Contact_Address:

Address_Type: mailing and physical address

Address: 208 Airport Drive

City: Middletown

State_or_Province: Pennsylvania

Postal_Code: 17055

Country: USA

Contact_Voice_Telephone: (717) 948-3962

Contact_Facsimile_Telephone: (717) 948-3957

Data_Set_Credit:

Pennsylvania Natural Heritage Program, Pennsylvania Science Office of The Nature Conservancy

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.1.0.722

Data_Quality_Information:

Logical_Consistency_Report: ESRI point geometry.

Completeness_Report:

Each accuracy assessment point is representaed by one point in the shapefile. All points fall within vegetation association polygons.

Lineage:

Process_Step:

Process_Description:

The number and distribution of sampling points was determined according to the USGS/NPS Vegetation Mapping protocols. A stratified random sampling approach was used, distributing the sampling effort across the 16 vegetation associations. Polygons labeled with modified Anderson level II categories were not included in the thematic accuracy assessment sampling. The thematic accuracy assessment of the Dry Oak - Mixed Hardwood Forest (disturbed) polygons was assessed separately from the accuracy of the Dry Oak - Mixed Hardwood Forest polygons to determine if the disturbed stands could be reliably distinguished on aerial photography. The polygons labeled as a mosaic of Wet Meadow and another vegetation association were lumped with the Wet Meadow polygons for the thematic accuracy assessment sampling plan. Please refer to the Vegetation Classification and Characterization and Vegetation Map Production sections within the Results section for complete discussion of the Dry Oak - Mixed Hardwood Forest (di sturbed) map label and of the Wet Meadow Mosaics. The number of samples per association varied according to the rarity of the vegetation type, both in terms of number of polygons and polygon size. The following rules were used to determine the number of points assigned to each association (The Nature Conservancy and Environmental Systems Research Institute 1994c): Scenario A: The class is abundant. It covers more than 50 hectares of the total area and consists of at least 30 polygons. In this case, it is recommended that 30 polygons be selected at random from the set of association's polygons. One sampling point will be assigned to each of the 30 selected polygons. Scenario B: The association is relatively abundant. It covers more than 50 hectares of the total area but consists of fewer than 30 polygons. In this case, it is recommended that 20 polygons be selected at random from the set of association's polygons, and that 1 sampling point be assigned to each of the 20 selected polygons. If the association contains less than 20 polygons, some polygons will contain multiple sampling points. The number of sampling points assigned to each polygon is determined by the relative area of that polygon compared with the other polygon in that association. Scenario C: The association is relatively rare. It covers less than 50 hectares of the total area but consists of more than 30 polygons. In this case, it is recommended that 20 polygons be selected at random from the set of association's polygons. One sampling point will be assigned to each of the 20 selected polygons. Scenario D: The class is rare. It has 5 - 30 polygons and covers less than 50 hectares of the area. In this case, it is recommended that 5 polygons be selected at random from the set of association's polygons. One sampling point will be assigned to each of the 5 selected polygons. Scenario E: The association is very rare. It has fewer than 5 polygons and occupies less than 50 hectares of the total area. In this case, it is recommended that one sampling point be assigned to each polygon. In order to randomly select the polygons in Scenarios A, B, and D, the Create Random Selection tool in Hawth's Analysis Tools was used in ArcGIS. For all of the scenarios, the Generate Random Points tool in Hawth's Analysis Tools was used to randomly determine the location of the sampling points in the polygon. Scenario C was not used for this sampling design because no association met the criteria of that scenario. Because many polygons occur on inaccessible privately-owned lands, the number of sampling points was reduced from that recommended by the protocol for six associations: Bottomland Oak - Hardwood Palustrine Forest, Conifer Plantation, Dry Oak - Mixed Hardwood Forest (disturbed), Palustrine Shrub Thicket, Pasture, and Sycamore - Mixed Hardwood Floodplain Forest. The final number of thematic accuracy assessment sampling points was 227. From July through September 2005, each accuracy assessment point was located in the field using one of the following GPS units: Trimble Pocket Pathfinder attached to a Beacon-on-a-Belt with a Compaq Ipaq Pocket PC interface, Garmin 76C, or Garmin GPS map 76.

Source_Used_Citation_Abbreviation:

C:\NPS 6 Parks\NPS 6 parks GIS\FONE GIS\WPC data points\fone_aa_points.shp.xml

Process_Date: 20050930

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation: C:\DOCUME~1\laptop\LOCALS~1\Temp\xml8.tmp

Process_Date: 20050930

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point

Point_and_Vector_Object_Count: 227

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 18

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600

Longitude_of_Central_Meridian: -75.000000

Latitude_of_Projection_Origin: 0.000000

False_Easting: 500000.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000016

Ordinate_Resolution: 0.000016

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: gett_veg_aa_2005

Entity_Type_Definition: attributes of shapefile table

Entity_Type_Definition_Source: Pennsylvania Natural Heritage Program

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: AA_OBS_ID

Attribute_Definition: accuracy assessment point number

Attribute_Definition_Source: NPS four letter park code plus unique number

Attribute_Domain_Values:

Unrepresentable_Domain: NPS four letter park code plus unique number

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

USGS Biological Resources Division, Center for Biological Informatics

Contact_Person: USGS-NPS Vegetation Mapping Program Coordinator

Contact_Address:

Address_Type: Physical Address

Address: USGS

Address: Biological Resources Division, CBI

Address: Building 810, Room 8000

City: Denver

State_or_Province: Colorado

Postal_Code: 80225-0046

Country: USA

Contact_Address:

Address_Type: Mailing Address

Address: USGS

Address: Biological Resources Division, CBI

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: Downloadable Data

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/gett/index.html>

Fees: None

Metadata_Reference_Information:

Metadata_Date: 20051215

Metadata_Review_Date: 20080926

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