Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Originator: Department of the Interior Publication_Date: 199810 Title: Accuracy Assessment Points for Scotts Bluff National Monument Vegetation Mapping Project Geospatial_Data_Presentation_Form: database and report Series_Information: Series_Name: USGS-NPS Vegetation Mapping Program Issue_Identification: Scotts Bluff National Monument Publication_Information: Publication_Place: Denver, CO Publisher: USGS Biological Resources Division, Center for Biological Informatics Online_Linkage: http://biology.usgs.gov/npsveg/ftp/vegmapping/scbl/scblaa.zip Description: Abstract: 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 Scotts Bluff 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. Purpose: To verify the accuracy of the mapped vegetation communities at Scotts Bluff National Monument Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 199810 Currentness_Reference: Source of data collection Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -103.74663 East_Bounding_Coordinate: -103.68121 North_Bounding_Coordinate: 41.86887 South_Bounding_Coordinate: 41.80845 Description_of_Geographic_Extent: Scotts Bluff National Monument, Nebraska and environs. Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: accuracy assessment Theme_Keyword: accuracy Theme_Keyword: assessment Theme_Keyword: vegetation Theme_Keyword: vegetation mapping Theme_Keyword: vegetation communities Theme_Keyword: vegetation classification Place: Place_Keyword_Thesaurus: None Place_Keyword: Nebraska Place_Keyword: NE Place_Keyword: Scottsbluff Place_Keyword: Gering Place_Keyword: Mitchell Place_Keyword: Mitchell Bottom Place_Keyword: North Platte River Place_Keyword: Roubadeau Place_Keyword: Scottsbluff County Place_Keyword: Scotts Bluff National Monument Taxonomy: Keywords/Taxon: Taxonomic_Keyword_Thesaurus: None Taxonomic_Keywords: vegetation classification Taxonomic_Keywords: Standardized National Vegetation Classification System Taxonomic_Keywords: alliance Taxonomic_Keywords: community association Taxonomic_System: Classification_System/Authority: Classification_System_Citation: Citation_Information: Originator: U.S. Government; Federal Geographic Data Committee Publication_Date: 19971022 Title: National Vegetation Classification Standard (NVCS) Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: Washington D.C. Publisher: Federal Geographic Data Committee Online_Linkage: http://www.fgdc.gov/standards/projects/FGDC-standards-projects/vegetation/index_html Taxonomic_Procedures: Vegetation associations were identified; no specimens nor vouchers were collected as a part of this process. Taxonomic_Completeness: Conforms with FGDC standardized vegetation classification system. Taxonomic_Classification: Taxon_Rank_Name: Kingdom Taxon_Rank_Value: Plantae Applicable_Common_Name: 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, citation or credit should be given to the U.S. Geological Survey and the National Park Service. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS BRD Center for Biological Informatics Contact_Person: USGS-NPS Vegetation Mapping Program Coordinator Contact_Address: Address_Type: mailing and physical address Address: Denver Federal Center, Building 810, Room 8000, MS 302 City: Denver State_or_Province: Colorado Postal_Code: 80225 Contact_Voice_Telephone: (303) 202-4220 Contact_Facsimile_Telephone: 303-202-4219 Contact_Electronic_Mail_Address: gs-b-npsveg@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://biology.usgs.gov/npsveg/scbl/images/scblaa.pdf Browse_Graphic_File_Description: 429 kbyte file showing vegetation associations and location of accuracy assessment points Browse_Graphic_File_Type: PDF Native_Data_Set_Environment: text file 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 differences between observation team identifications. 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. Several points fell outside the mapping area, so were discarded. 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. Vegetation communities were identified on the basis of a dichotomous field key and plant 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: U.S. National Biological Survey Originator: U.S. National Park Service Originator: Department of the Interior Publication_Date: 199411 Title: Accuracy Assessment Procedures, NBS/NPS Vegetation Mapping Program Geospatial_Data_Presentation_Form: procedures 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; Redlands, CA and National Center for Geographic Information and Analysis, University of California, Santa Barbara, CA anbd The Nature Conservancy, Arlington, VA under contract from U.S. Department of the Interior National Biological Survey 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 Scotts Bluff National Monument. Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Originator: Department of the Interior Publication_Date: 199809 Title: Scotts Bluff National Monument Spatial Vegetation Data: Cover type / Association level of the National Vegetation Classification System Geospatial_Data_Presentation_Form: report Series_Information: Series_Name: USGS-NPS Vegetation Mapping Program Issue_Identification: Scotts Bluff 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: 19950725 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Spatial data of vegetation communities for Scotts Bluff 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 Scotts Bluff 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 Scotts Bluff National Monument. Source_Used_Citation_Abbreviation: Accuracy Assessment Procedure Document Process_Date: 199810 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: 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: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -105 Latitude_of_Projection_Origin: 0 False_Easting: 500000 False_Northing: 0 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: Geodetic Reference System 80 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 297.257 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: The National Vegetation Classification Standard 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 hierarchy are based on the species composition of 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 USGS-NPS mapping efforts. Data file attributes include species, alliance, community element, and land cover. 0=no data 1=Juniperus scopularum/Orysopsis micrantha Woodland 2=Pinus ponderosa/Juniperus scopularum Woodland 3=Populus deltoides - (Salix amygdaloides)/Salix exigua Fldpln 4=Salix exigua Shrubland 5=Andropogon halii --Calamovilfa longifolia Herbaceous Veg. 6=Cercocarpus montanus/Bouteloua curtipendula Shrubland 7=Symphoricarpus occidentalis Shrubland 8=Typha spp. -Equisetum hyemale/Carex spp. Seep Herbaceous 9=Kochia scoparia/Bromus spp. Early Seral Community 10=Mixed Grass Prairie (reseeded) 11=Pascopyrum smithii Herbaceous Vegetation 12=Stipa comata -Bouteloua gracilis/Carex filfoliaHerb. Veg. 13=Riverine Sand Flats/Bars 14=Rock Outcrop/Prairie Mosaic 15=Siltstone - Clay Butte Sparse Vegetation 16=Open Bluff/Cliff & Eroding Great Plains Badlands Sparse Veg. 17=Andropogon gerardii -Calamagrostis canadensis - Helianthus g. 18=Cliff/Rock Outcrop/Prairie Mosaic 19=Eroding Great Plains Slopes Sparse Vegetation 20=Water 21=Unvegetated landuse / disturbance 22=Pinus ponderosa/Juniperus scopularum Woodland Entity_and_Attribute_Detail_Citation: Grossman, D. Et al. 1994. National Park Service/ National Biological Service Vegetation Mapping Project, Standardized National Vegetation Classification System 209 pp. Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS BRD Center for Biological Informatics Contact_Person: USGS-NPS Vegetation Mapping Program Coordinator Contact_Address: Address_Type: mailing and physical address Address: Denver Federal Center, Building 810, Room 8000, MS 302 City: Denver State_or_Province: Colorado Postal_Code: 80225 Contact_Voice_Telephone: (303) 202-4220 Contact_Facsimile_Telephone: 303-202-4219 Contact_Electronic_Mail_Address: gs-b-npsveg@usgs.gov 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/scbl/index.html Access_Instructions: Internet Access Fees: None Metadata_Reference_Information: Metadata_Date: 20011022 Metadata_Review_Date: 20100615 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS BRD Center for Biological Informatics Contact_Person: USGS-NPS Vegetation Mapping Program Coordinator Contact_Address: Address_Type: mailing and physical address Address: Denver Federal Center, Building 810, Room 8000, MS 302 City: Denver State_or_Province: Colorado Postal_Code: 80225 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 Biological Data Profile of the Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001.1-1999 Metadata_Extensions: Online_Linkage: http://www.nbii.gov/portal/server.pt/community/fgdc_metadata/255