National Park Service Humboldt State University 2009 Plots V3.0 vector digital data http://www1.usgs.gov/vip/whis/whisgeodata.zip doi:10.5066/F7GT5K6V Accuracy Assessment, Observation and Plot Points. Currently there are NO plot points in this feature class, only accuracy assessment points. To assist with the development of vegetation maps for the National Park Service. Plots were collected to characterize actual vegetation, while accuracy assessment plots were visited to verify the mapper's interpretation of the vegetation communities. No plots were developed for this project. Accuracy assessment points were acquired, but no attributes were assigned to the accuracy assessment points. Refer to whisaarpt.pdf for more detailed information. 2004 publication date Complete None planned Whiskeytown National Recreation Area and environs -122.727718 -122.499318 40.715865 40.541500 None Accuracy Assessment Point None Standardized National Vegetation Classification System vegetation classification alliance community association Kingdom Plantae It is strongly recommended that these data are directly acquired from U.S. Geological Survey and National Park Service servers and not indirectly through other sources which may have changed the data in some way. 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 tables 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. The National Park Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. Although these data have been processed successfully on a computer system, 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. Microsoft Windows Vista Version 6.1 (Build 7600) ; ESRI ArcCatalog 9.3.1.3500 Our field crew sampled 499 usable thematic accuracy assessment plots during the summer and fall of 2004 that were distributed throughout the study area. The point estimate from the sample of 499 plots for the overall thematic accuracy is 61.5 percent for the 38 associations-alliances classes. The one-sided, 90 percent confidence interval is 2.9 percent, assuming a binomial distribution. It can be concluded that with 90 percent certainty the estimated accuracy of the map is equal to or greater than 58.6 percent (61.5 - 2.9). This poor accuracy resulted from confusion between similar associations and sometime between similar alliances. The point estimate from the sample of 499 plots for the overall thematic accuracy is 79.8 percent for the alliance level of classification. The one-sided, 90 percent confidence interval is 2.4 percent, assuming a binomial distribution. It can be concluded that with 90 percent certainty the estimated overall accuracy of the map is equal to or greater than 77.4 percent (79.8 - 2.4). The point estimate from the sample of 499 plots for the overall thematic accuracy of the mapping units map is 85.6 percent. The one-sided, 90 percent confidence interval is 2.1 percent, assuming a binomial distribution. It can be concluded that with 90 percent certainty the estimated accuracy of the mapping units map is equal to or greater than 83.5 percent (85.6 - 2.1) exceeding the USGS-NPS standard of 80 percent for thematic accuracy. Unknown 499 accuracy assessment points are referenced in the report; however, only 498 spatial points were provided by Humboldt State University. The root mean square positional error of the X coordinates (east-west, UTM grid) is 2.4 meters based on 20 reference points. The root mean square positional error of the Y coordinates (north-south, UTM grid) is 1.8 meters. Polygons that were less than 500 meters from a road were selected as the sampling population. Then polygons were selected from a random sample of those polygons until 15 polygons were selected from each class (strata). We used a progressive approach to selecting polygons, first selecting from polygons within 100 meters from any existing road and then when the required number of sampled polygons per strata was not met, expanding to 300 meters from a road and finally to 500 meters. The USGS-NPS Vegetation Mapping Program (1994) standards allow for departure from a purely stratified random sample to allow for access problems. The nature of the landscape in the Whiskeytown Unit demanded that we constrain our sampling to those polygons near existing roads otherwise the field data collection would have taken several summer field seasons and been excessively expensive. For polygons actually intersected by a road, field crews avoided areas in which any direct effects of the road surface, or its cut slope or fill slope, occurred. The map was not fully completed at the time of sample polygon selection for field measurement and the beginning of field sampling. The field crews did not know the mapped vegetation class of the polygon they sampled and the accuracy assessment samples were analyzed after the map was completely finished. unknown Vector Entity point 498 Universal Transverse Mercator 10 0.999600 -123.000000 0.000000 500000.000000 0.000000 coordinate pair 0.000100 0.000100 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 WHIS_VegPoints Feature class attribute table National Park Service OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. SHAPE Feature geometry. ESRI Coordinates defining the features. Plot_Code Unique identifier for this Accuracy Assessment, Observation or Plot point Plots V3.0 Unique plot number. Pnts_Type Point type (accuracy assessment point, observation point or plot point) Plots V3.0 Accuracy Assessment Point AA Point NPS Observation Point Observation Point NPS Plot Point Plot Point NPS X_Coord X Coordinate (UTM Easting) Plots V3.0 Easting coordinate. Y_Coord Y Coordinate (UTM Northing) Plots V3.0 Northing coordinate. USGS/CSS/Core Science Analytics and Synthesis USGS-NPS Vegetation Characterization Program Coordinator mailing and physical address

Denver Federal Center, Building 810, MS 302

Denver Colorado 80225 (303) 202-4220 303-202-4219 gs-b-npsveg@usgs.gov Downloadable Data 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. HTML http://www.usgs.gov/core_science_systems/csas/vip/parks/whis.html Internet Access None 20100504 20101027 USGS/CSS/Core Science Analytics and Synthesis USGS-NPS Vegetation Characterization Program Coordinator mailing and physical address

Denver Federal Center, Building 810, MS 302

Denver Colorado 80225 (303) 202-4220 303-202-4219 gs-b-npsveg@usgs.gov FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata FGDC-STD-001.1-1999 http://www.usgs.gov/core_science_systems/csas/metadata/index.html