BOREAS AFM-12 1-km AVHRR seasonal land cover classification

Original publisher: Greenbelt, Md. : National Aeronautics and Space Administration, Goddard Space Flight Center, [2000] OCLC Number: (OCoLC)66464659 Excerpt: ... Water and Grassland Marshes Open The open water Class 7 includes water bodies such as small lakes and streams. For AVHRR, this class also includes water / vegetation mixed pixels. In the north, there were some cases of definite spectral confusion between dark water bodies and recent, dark bums. The grassland marshes ( Class 15 ) are mainly located in western Manitoba, near The Pas. General Agricultural Land Use There are three general agricultural land use classes. A mixed class ( rangeland, pasture, hay, and aspen patches ) consists of aspen patches ( typically around " pothole " water bodies ) embedded in grasslands ( rangeland, pasture, and hay fields ) in the southwest portion of the BOREAS region ( Class 12 ). The aspen trees are estimated to represent 30 percent of the land cover. A mixed agricultural, predominantly grains class represents the major agricultural grain-producing area in the BOREAS region ( Class 13 ). This class also includes fallowed fields. A mixed agricultural class consists predominantly of pasture and hay fields with some grain cropping ( Class 14 ). 7.3.3 Unit of Measurement Pixel values represent different land cover types. 7.3.4 Data Source AVHRR imagery was received from EDC, Sioux Falls, SD. Pixel values range from 0 to 20, where the land cover classes have pixel values of 1-20 and the raster-filler boundary pixels have values of zero. 7.3.5 Data Range Pixel values range from 0 to 20, where the land cover classes have pixel values of 1-20 and the raster-filler boundary pixels have values of zero. 7.4 Sample Data Record Not applicable to image data. 8. Data Organization 8.1 Data Granularity The smallest amount of data that can be ordered from this data set is the entire data set. 8.2 Data Format ( s ) 8.2.1 Uncompressed Data Files This BOREAS AFM-12 regional 1-km AVHRR /...