Bruce W. Pengra Stephen V. Stehman Todd A. Schroeder Roger F. Auch Devendra Dahal Nicholas Daniels Daryn J. Dockter Mark Hammond Ian W. Houseman Jennifer Lecker Zhiqiang Yang 20211124 spreadsheet https://doi.org/10.5066/P9HEE6VK Stephen V. Stehman John Mousoupetros Ronald E. McRoberts Erik Næsset Bruce W. Pengra Dingfan Xing Josephine A. Horton 202202 publication Remote Sensing of Environment vol. 269 n/a Elsevier BV ppg. 112806 https://doi.org/10.1016/j.rse.2021.112806 Area estimates of land cover and land cover change are often based on reference class labels determined by analysts interpreting satellite imagery and aerial photography. Different interpreters may assign different reference class labels to the same sample unit. This dataset includes land cover attributes for the year 2000 assigned by 7 image analysts, working independently of each other, to a set of 300 sample locations from a region of the Pacific Northwest of the United States. This data was used in an evaluation of the impact of interpreter variability on variance estimation. This data was used in an evaluation of the impact of interpreter variability on variance estimation. 2000 observed Complete None planned Pacific Northwest -137.0000 -120.0000 60.0000 42.0000 ISO 19115 Topic Category environment USGS Thesaurus land use and land cover image analysis None interpretation USGS Metadata Identifier USGS:6123965bd34e40dd9c0338f5 Common geographic areas Pacific Northwest None. Please see 'Distribution Info' for details. None. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations. U.S. Geological Survey, Earth Resources Observation and Science (EROS) Center mailing and physical

47914 252nd Streets

Sioux Falls South Dakota 57198 United States 800-252-4547 custserv@usgs.gov The authors would also like to acknowledge the contributions of Zhiqiang Yang in developing the TimeSync interface used in collecting the data and Sean Healy, Warren Cohen, and Mark Finco of the U.S. Forest Service for their numerous contributions to the project. Data creation and collection was conducted on a desktop computer using a Windows 10 operating system and the programs: ArcMap, Microsoft Office, QGIS Desktop, and Google Earth Pro. No formal attribute accuracy tests were conducted. No formal logical accuracy tests were conducted. Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. N/A N/A Step 1: A sample of 300 30 m x 30 m pixels were selected via simple random sampling from a population of all pixels in the pilot study region of the Puget Sound ecoregion. 2016 Step 2: Seven interpreters independently collected land cover labels for all 300 sample pixels. Interpreters evaluated each sample pixel for characteristics of land use, land cover, etc. and this information was used to assign a land cover label. 2016 Step 3: The land cover label assigned by each interpreter for the year 2000 were collected for comparison and evaluation of interpreter variability. 2016 Puget_Pilot_Year2000_7Interpreters.csv Comma Separated Value (CSV) file containing individual interpreter land cover labels for sample plot locations. Producer Defined plotid Unique identifier assigned to each individual plot. Producer Defined 269 137709 Int102 Land cover class assigned to the plot by Interpreter 102 Producer Defined 1 Water Producer defined 2 Developed Producer defined 3 Disturbed Producer defined 5 Bare Ground Producer defined 6 Forest Producer defined 7 Grass and Shrub Producer defined 8 Ag Producer defined 9 Wetland Producer defined Int103 Land cover class assigned to the plot by Interpreter 103 Producer Defined 1 Water Producer defined 2 Developed Producer defined 3 Disturbed Producer defined 5 Bare Ground Producer defined 6 Forest Producer defined 7 Grass and Shrub Producer defined 8 Ag Producer defined 9 Wetland Producer defined Int105 Land cover class assigned to the plot by Interpreter 105 Producer Defined 1 Water Producer defined 2 Developed Producer defined 3 Disturbed Producer defined 5 Bare Ground Producer defined 6 Forest Producer defined 7 Grass and Shrub Producer defined 8 Ag Producer defined 9 Wetland Producer defined Int106 Land cover class assigned to the plot by Interpreter 106 Producer Defined 1 Water Producer defined 2 Developed Producer defined 3 Disturbed Producer defined 5 Bare Ground Producer defined 6 Forest Producer defined 7 Grass and Shrub Producer defined 8 Ag Producer defined 9 Wetland Producer defined Int107 Land cover class assigned to the plot by Interpreter 107 Producer Defined 1 Water Producer defined 2 Developed Producer defined 3 Disturbed Producer defined 5 Bare Ground Producer defined 6 Forest Producer defined 7 Grass and Shrub Producer defined 8 Ag Producer defined 9 Wetland Producer defined Int109 Land cover class assigned to the plot by Interpreter 109 Producer Defined 1 Water Producer defined 2 Developed Producer defined 3 Disturbed Producer defined 5 Bare Ground Producer defined 6 Forest Producer defined 7 Grass and Shrub Producer defined 8 Ag Producer defined 9 Wetland Producer defined Int110 Land cover class assigned to the plot by Interpreter 110 Producer Defined 1 Water Producer defined 2 Developed Producer defined 3 Disturbed Producer defined 5 Bare Ground Producer defined 6 Forest Producer defined 7 Grass and Shrub Producer defined 8 Ag Producer defined 9 Wetland Producer defined This dataset include land cover attributes for the year 2000 assigned by 7 image analysts, working independently of each other, to a set of 300 sample locations from a region of the Pacific Northwest of the United States. This data was used in an evaluation of the impact of interpreter variability on variance estimation. Producer Defined GS ScienceBase U.S. Geological Survey mailing address

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Digital Data https://doi.org/10.5066/P9HEE6VK None 20211124 Josephine A Horton (CTR) U.S. Geological Survey, CORE SCIENCE SYSTEMS mailing address

47914 252Nd Street

Sioux Falls SD 57198 US 605-594-2883 jahorton@contractor.usgs.gov FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata FGDC-STD-001.1-1999