User Manual - pancroma

35. Working with ASTER Data________________________________________________________________ASTER L1B data for all of the United States can be downloaded at no cost fromthe LP DAAC Data Pool at https://lpdaac.usgs.gov/lpdaac/get_data/data_pool.ASTER L1B images are archived in HDF format. All bands are contained in asingle HDF format file. To access the data, open your ASTER HDF data file oneband at a time. Do this by selecting ‘ASTER L1B, SPOT VEG HDF, MODIS’from the File Type drop down box and clicking on your ASTER scene. Thenselect ‘Display Files’ | ‘Display Single Grayscale Band Image’. When the ASTERBand Selection Form becomes visible, select your desired band. Clicking ‘OK’will render the band, which you can save in GeoTiff, JPEG or other format.Once your bands are converted, the bands can be recombined and processed toproduce other interesting images. Like SPOT, ASTER sensor lacks the visiblespectrum bands necessary for the direct production of true color RGB images.However PANCROMA TM offers a utility for creating natural color RGB imagesfrom ASTER bands 1, 2 and 3N. These are the bands that are composited in the15m-resolution VNIR ASTER image in the Data Pool data set. To create a96