2009
DOI: 10.1039/b904737a
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FTIR reflectance of selected minerals and their mixtures: implications for ground temperature-sensor monitoring on Mars surface environment (NASA/MSL-Rover Environmental Monitoring Station)

Abstract: The Rover Environmental Monitoring Station (REMS) is one of NASA/MSL's instruments, which has been designed for measuring ambient pressure, humidity, wind speed and direction, UV radiation, and air and ground temperature (GT). The GT-sensor is dedicated to measure the real temperature of the Martian surface, integrating the IR energy coming from the ground. The existing IR spectral data of Martian dust, rocks and sediments allow for comparing the Martian spectra with the spectra of different terrestrial minera… Show more

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Cited by 8 publications
(4 citation statements)
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“…In the future, we anticipate that Curiosity will traverse less dusty surfaces, and surface emissivity may have a greater effect on measured temperatures. In the absence of local measurements of infrared emissivity, mineral abundance data from the Chemistry and Mineralogy (CheMin) instrument [Blake et al, 2012], in combination with observed particle size data, can be used to generate synthetic emissivity spectra from laboratory mineral and rock spectra [Christensen et al, 2000;Martín-Redondo et al, 2009], which then can be used to predict temperature errors using the method described here.…”
Section: Surface Emissivitymentioning
confidence: 99%
“…In the future, we anticipate that Curiosity will traverse less dusty surfaces, and surface emissivity may have a greater effect on measured temperatures. In the absence of local measurements of infrared emissivity, mineral abundance data from the Chemistry and Mineralogy (CheMin) instrument [Blake et al, 2012], in combination with observed particle size data, can be used to generate synthetic emissivity spectra from laboratory mineral and rock spectra [Christensen et al, 2000;Martín-Redondo et al, 2009], which then can be used to predict temperature errors using the method described here.…”
Section: Surface Emissivitymentioning
confidence: 99%
“…The emissivity is determined by the composition of the surface, both its mineralogy and the particle size distribution. In this light, the laboratory Fourier transform IR (FTIR) reflectance spectra of a set of selected astrobiologically significant minerals (including oxides, oxi/hydroxides, sulphates, chlorides, opal and clays) and basalt (as the main and most widespread volcanic Martian rock) has been measured (Martín-Redondo et al 2009), taking into account different mixing amounts of minerals and covering the GTS spectral range. A set of minerals were selected for the experiments, from verified standards (SARM, NCS, USGS) and Mars analogs (e.g.…”
Section: Effect Of Surface Emissivity Uncertainty On Interpretation O...mentioning
confidence: 99%
“…The values for Antarctic soil emissivities ε soils at the deployment location for the GTS and the CNR1 net radiometer band pass were measured [13] (Table 6). Since these values are lower than 1, a fraction of the radiation emitted by the atmosphere is reflected on the surface, and also on the detectors.…”
Section: Field Test Campaignmentioning
confidence: 99%
“…This explains the need for specific studies of the IR reflectance properties associated with different kinds of Martian surface material such as minerals and rocks. Recently, the FTIR (Fourier Transform Infrared Spectroscopy) reflectance of a set of selected astrobiologically significant minerals (including oxides, oxi-hydroxides, sulfates, chlorides, opal and clays) and basalt (as the main and most widespread volcanic Martian rock) was measured, considering different mixing amounts, and covering the specific working wavelength range of the REMS GTS [13]. The results obtained indicated significant percentage increases or decreases in reflectance over the entire wavelength range (e.g., basalt-hematite vs .…”
Section: Introductionmentioning
confidence: 99%