USGS:Biology Biological Informatics Program Vegetation Characterization Program Agate Fossil Beds National Monument 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: U.S. Geological Survey

Originator: Department of the Interior

Publication_Date: 199805

Title: Agate Fossil Beds National Monument Accuracy Assessment

Geospatial_Data_Presentation_Form: database

Series_Information:

Series_Name: USGS-NPS Vegetation Mapping Program

Issue_Identification: Agate Fossil Beds National Monument

Publication_Information:

Publication_Place: Denver, CO

Publisher:

USGS Biological Resources Division, Center for Biological Informatics

Online_Linkage:

<http://biology.usgs.gov/npsveg/agfo/index.html#accuracy_assessment_info>

Description:

Abstract:

The accuracy assessment field work was performed in August and September, 1997 to verify the accuracy of the vegetation communities spatial data developed by the USGS-NPS Vegetation Mapping Program for Agate Fossil Beds National Monument. The data points were randomly distributed stratified according to vegetation association over the project area according to protocols developed by the Program. Points were located by GPS navigation and the community information was collected at the point, without knowledge of the attributes of the vegetation spatial data. The data points were compared to the attributes of the polygon in which they were contained. Attributes of the polygons or accuracy assessment points that did not match were changed during later analysis due to errors in the AA methodology or map attribution errors. A contingency table was completed from the final dataset.

Purpose:

To verify the accuracy of the mapped vegetation communities at Agate Fossil Beds National Monument.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 199708

Currentness_Reference: Source of data collection

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None Planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -103.8

East_Bounding_Coordinate: -103.7

North_Bounding_Coordinate: 42.44167

South_Bounding_Coordinate: 42.40833

Description_of_Geographic_Extent: Agate Fossil Beds National Monument, Nebraska, USA

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: National Park Service

Theme_Keyword: U.S. Geological Service

Theme_Keyword: Center for Biological Informatics

Theme_Keyword: land cover

Theme_Keyword: vegetation

Theme_Keyword: alliance

Theme_Keyword: association

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: Agate Fossil Beds National Monument

Place_Keyword: Nebraska

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:

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:

USGS Biological Resources Division, Center for Biological Informatics

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/agfo/images/agfoaa.pdf>

Browse_Graphic_File_Description:

Locations of accuracy assessment sites; low resolution for web browsing. 407 Kbyte.

Browse_Graphic_File_Type: PDF

Security_Information:

Security_Classification_System: None

Security_Classification: None

Security_Handling_Description: None

Native_Data_Set_Environment: UNIX-ARC/INFO

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The attributes for the accuracy assessment were recorded in the field in August, 1997. Vegetation associations were identified based on the field key and plant identification. If additional communities were found within a 50 meter radius of the plot center, they were recorded as well. During the analysis, it was concluded that some attributes were in error and changed to match the mapped attributes. This was done by examination of the aerial photographs under stereoscopic view. The attributes were in error due to 1) spatial error in the GPS derived coordinates (4-8 meters), 2) change of vegetation community due to temporal changes, or mis-identification of the community on the ground.

Logical_Consistency_Report:

All attributes are codes that correspond to vegetation communities and have been checked for typographical and logical errors.

Completeness_Report: All points were collected and analyzed.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The points were located using a military-style GPS receiver (PLGR), which has a published accuracy of 4-8 meters.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: Not applicable

Lineage:

Methodology:

Methodology_Type: Field

Methodology_Identifier:

Methodology_Keyword_Thesaurus: None

Methodology_Keyword: Accuracy Assessment

Methodology_Description:

Data points were located by use of a PLGR GPS receiver by Wyoming Natural Heritage Program and Agate Fossil Beds National Monument personnel. Vegetation communities were identified on the basis of a dichotomous field key and plants species present.

Methodology:

Methodology_Type: Lab

Methodology_Identifier:

Methodology_Keyword_Thesaurus: None

Methodology_Keyword: Accuracy Assessment

Methodology_Description:

Accuracy assessment points were compiled into an ARCINFO point coverage and intersected with the vegetation community coverage. The resulting INFO file was exported into a text file, imported into a spreadsheet, and the attributes from the accuracy assessment and the spatial data were compared. If the attributes did not compare, an analysis of the mismatch was made and either the AA attribute or the map attribute was changed based on identification of the community on the aerial photo.

Source_Information:

Source_Citation:

Citation_Information:

Originator: USGS-Biological resources Division

Originator: U.S. National Park

Originator: Depatment of the Interior

Publication_Date: 199411

Title:

Accuracy Assessment Procedures, NBS/NPS Vegetation Mapping Program

Geospatial_Data_Presentation_Form: document

Publication_Information:

Publication_Place: Denver, CO

Publisher:

USGS, Biological Resources Division, Center for Biological Informatics

Other_Citation_Details:

Prepared by: Environmental Systems Research Institute, Inc. Redlands, CA and National Center of Geographic Information and Analysis, University of California, Santa Barbara, CA and The Nature Conservancy, Arlington, VA under contract rom U.S. Department of the Interior Biological Resources Division and National Park Service.

Type_of_Source_Media: electronic document

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 199411

Ending_Date: Present

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Accuracy Assessment Procedures Document

Source_Contribution:

This document established the procedures and protocols for the accuracy assessment at Agate Fossil Beds National Monument.

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Originator: Department of the Interior

Publication_Date: 199805

Title:

Agate Fossil Beds National Monument Spatial Vegetation Data: Cover type / Association level of the National Vegetation Classification System

Geospatial_Data_Presentation_Form: document

Series_Information:

Series_Name: USGS-NPS Vegetation Mapping Program

Issue_Identification: Agate Fossil Beds National Monument

Publication_Information:

Publication_Place: Denver, CO

Publisher:

USGS, Biological Resources Division, Center for Biological Informatics

Other_Citation_Details:

Created in large part by Environmental Systems Research Institute, Inc. Redlands, CA under contract rom USGS/BRD/CBI.

Type_of_Source_Media: Disc

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 199805

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation:

Spatial data of vegetation communities for Agate Fossil Beds National Monument.

Source_Contribution:

The vegetation spatial data were tested for accuracy with the AA data.

Process_Step:

Process_Description:

The accuracy assessment field work was performed in August 1997 to verify the accuracy of the vegetation communities spatial data developed by the USGS-NPS Vegetation Mapping Program for Agate Fossil Beds National Monument. the data points were randomly distributed stratified according to vegetation association over the project area according to protocols developed by the Program. Points were located by GPS navigation and the community information was collected at the point, without knowledge of the attributes of the vegetation spatial data.

Source_Used_Citation_Abbreviation:

Spatial data of vegetation communities for Agate Fossil Beds National Monument.

Source_Used_Citation_Abbreviation: Accuracy Assessment Procedure Document

Process_Date: 199708

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference:

Agate Fossil Beds National Monument is in Sioux County, Nebraska near the headwaters of the Niobrara River. The mound is located 20 miles south of Harrison, Nebrasaka.

Direct_Spatial_Reference_Method: Point

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Point

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 13

Transverse_Mercator:

Longitude_of_Central_Meridian: -105

Latitude_of_Projection_Origin: 0

False_Easting: 50000

False_Northing: 0

Scale_Factor_at_Central_Meridian: .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:

The system is organized hierarchically to support conservation and resource stewardship applications across multiple scales. The upper levels of the hierarchy are based on the physical form or structure of the vegetation (physiognomy) and have been refined from the international standards developed by the United Nations Educational, Scientific, and Cultural Organization (UNESCO). The two most detailed levels of the hierearchy are based on the species composition of the existing vegetation (floristics) and reflect the phyto-sociological standards that were originally developed by European ecologists. The vegetation classification is continually advanced through the collection and analysis of new field data and will be greatly strengthened during the course of the NBS/NPS mapping efforts. National Park Service/Biological Resources Division Vegetation Inventory and Mapping Program for Agate Fossil Beds National Monument, Nebraska, Final Community Association Classification, May 1, 1998. Alliance/Community 01=Populus Deltoides - (Salix amygdaloides) / Salix exigua Woodland 02=Symphoricarpus occendentalis Shrubland 03=Salix exigua Shrubland 04=Stipa comata - Bouteloua gracilis - Carex filifolia Herbaceous Vegetation 05=Calamovilfa longifolia - Andropogon halli Herbaceous Vegetation 06=Upland Disturbance Herbaceous Vegetation 07=Annual-dominated Floodplain Disturbance Herbaceous Vegetation 08=Pascopyrum smithii Herbaceous Vegetation 09=Juncus balticus Herbaceous Vegetation 10=Typha latifolia Western Herbaceous Vegetation 11=Seeded Grassland Herbaceous Vegetation 12=Stipa comata - Bouteloua gracilis Gravel Herbaceous Vegetation 13=Schizachyrium scoparium - Bouteloua (curtipendula, gracilis) - Carex filifolia Herbaceous Vegetation 14=Stipa comata - Bouteloua gracilis - Carex filifolia Herbaceous Vegetation Mosiac 98 =Water Body 99=Urban/Built-Up/Maintained/Road/Road Mowed/Cut and Fill.

Entity_and_Attribute_Detail_Citation:

Grossman, D. Et al. 1994. National Park Service Vegetation Mapping Project, Standardized National Vegetation Classificatrion 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, Center for Biological
Informatics

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

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: FOLA Accuracy Assessment

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/agfo/index.html#accuracy_assessment_info>

Fees: None

Metadata_Reference_Information:

Metadata_Date: 20011022

Metadata_Review_Date: 20071101

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