CRISM (Compact Reconnaissance Imaging Spectrometer for Mars) on MRO (Mars Reconnaissance Orbiter)
Scott L. Murchie, Raymond E. Arvidson, Peter Bedini, K. Beisser, Jean-Pierre Bibring, J. Bishop, John D. Boldt, Tech H. Choo, R. Todd Clancy, Edward H. Darlington, D. Des Marais, R. Espiritu
(+35 others)
2004
Instruments, Science, and Methods for Geospace and Planetary Remote Sensing
The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) on the Mars Reconnaissance Orbiter (MRO) will conduct a comprehensive series of investigations of the Martian surface and atmosphere. The investigations will be accomplished using an instrument design that provides high spatial and spectral resolutions, extended wavelength range, and ability to gimbal through a range of orientations. Baseline investigations include a nearglobal survey to find high science priority sites,
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... tion measurement of thousands of such sites, and tracking of seasonal variations in atmospheric and surface properties. Science Overview: The Mars Exploration Payload Analysis Group [1] recommended specific hyperspectral imaging investigations to characterize Martian geology, climate, and environments of present or past life. CRISM's three groups of investigations address all of MEPAG's recommendations ( Table 1 ). The first group corresponds to two primary objectives of MRO: to search for evidence of aqueous and/or hydrothermal activity, and to map and characterize the composition, geology, and stratigraphy of surface features. These investigations are implemented by high-resolution hyperspectral mapping of thousands of high priority targets including candidate sedimentary deposits [2], volcanic regions, crustal sections exposed in steep escarpments, and sites which exhibit evidence in Mars Express/Omega data for concentrations of aqueously formed minerals. The second group of investigations addresses the primary MRO objective to characterize seasonal variations in dust and ice aerosols and water content of surface materials, and the secondary objective to provide information on the atmosphere complementary to other MRO instruments. This group of investigations is implemented using a systematic, global grid of measurements of the emission phase function (EPF) acquired repetitively throughout the Martian year. EPF measurements allow accurate determination of column abundances of water vapor, CO, dust and ice aerosols, and their seasonal variations [3]. At the same time, the grid's repetitive coverage will track seasonal variations in water content of surface
doi:10.1117/12.578976
fatcat:qydnk2uvozgrtbdtrq7nivkavm
