ASTER User's Guide - Aster - NASA

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ASTER Users Handbook Table of Figures Figure 1: The ASTER Instrument before Launch........................................................................... 9 Figure 2: Comparison of Spectral Bands between ASTER and Landsat-7 Thematic Mapper..... 10 Figure 3: VNIR Subsystem Design............................................................................................... 12 Figure 4: SWIR Subsystem Design. ............................................................................................. 13 Figure 5: TIR Subsystem Design.................................................................................................. 15 Figure 6: End-to-End Processing Flow of ASTER data between US and Japan.......................... 18 Figure 9: Opening Page of the EOS Data Gateway...................................................................... 32 Figure 10: Choosing Search Keyword “DATASET.” .................................................................. 33 Figure 11: Choosing Search Area................................................................................................. 34 Figure 12: Choosing a Date/Time Range...................................................................................... 35 Figure 13: Data Set Listing Result................................................................................................ 36 Figure 14: Data Granules Listing Result. ..................................................................................... 37 Figure 15: Choosing Ordering Options......................................................................................... 38 Figure 16: Order Form.................................................................................................................. 39 Figure 17: Cuprite Mining District, displayed with SWIR bands 4-6-8 as RGB composite........ 42 Figure 18: Spectral Angle Mapper Classification of Cuprite SWIR data..................................... 43 Figure 19: ASTER image spectra (left) and library spectra (right) for minerals.......................... 44 mapped at Cuprite......................................................................................................................... 44 Figure 20: Outline map of Lake Tahoe, CA/NV. ......................................................................... 45 Figure 21: Raft Measurements...................................................................................................... 46 Figure 22: Field measurements at the US Coast Guard................................................................ 48 Figure 23: Color Infrared Composite of ASTER bands 3, 2, 1 as R, G, B respectively. ............. 49 Figure 24: ASTER band 1 (0.52-0.60 µm) color-coded to show variations in the intensity of the near-shore bottom reflectance............................................................................................... 50 Figure 25: Bathymetric map of Lake Tahoe CA/NV.................................................................... 51 Figure 26: Near-shore clarity map derived from ASTER data and a bathymetric map. .............. 52 Figure 27: ASTER Band-13 Brightness Temperature Image of Lake Tahoe from Thermal Data Acquired June 3, 2001. ......................................................................................................... 53 Figure 28: Upper-left pixel of VNIR, SWIR and TIR bands in an ASTER Level-1B data set.... 57 Figure 29: ASTER L1B Footprint in the Context of the SCENEFOURCORNERS Alignment.. 58 Figure 30: Ascending and Descending Orbital Paths. .................................................................. 59 Figure 31: G-Ring and G-Polygon................................................................................................ 78 6
ASTER Users Handbook List of Tables Table 1: Characteristics of the 3 ASTER Sensor Systems. .......................................................... 10 Table 2: Specifications of the ASTER Level-1A Browse Product............................................... 19 Table 2: Resampling Methods and Projections Available for Producing Level-1B products..... 23 Table 3: ASTER Higher-Level Standard Data Products. ............................................................. 24 Table 4: Maximum Radiance Values for all ASTER Bands and all Gains. ................................. 25 Table 5: Calculated Unit Conversion Coefficients. ...................................................................... 26 Table 6: Geometric Performance of ASTER Level-1 Data (Based on V2.1 of the Geometric Correction Database). ........................................................................................................... 28 Table 7: Specific Metadata Attributes Required for Geo-Referencing ASTER Level-1B Data. . 55 7
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