Each of these 86 points were visited and a description of the actual land-cover present was recorded. The Kappa statistic to compare the image classification with these ground truth data. Map accuracy was also evaluated by local scientists who were familiar with the area. Calculated with agreement statistics using a selected subset of ground points based on confidence level, and combined cover-type classes. Kappa statistic computed using the reference data described, above.
Data are complete.
Minimum mapping unit is 8100 square feet. Satellite image was purchased by the City of Boulder Open Space, who provided the data for this study. Classification scheme was modified from vertebrate habitat types defined by the City of Boulder Open Space scientists. Classification scheme was modified from vertebrate habitat types defined by the City of Boulder Open Space scientists. 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 accuracy 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.