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http://hdl.handle.net/20.500.12386/26442
Title: | Modeling infrared thermal emissions on Mars during dust storm of MY28: PFS/MEX observation | Authors: | Haider, Syed A. Kasaba, Yasumasa GIURANNA, MARCO Kuroda, Takeshi Jethwa, Masoom P. |
Issue Date: | 2016 | Volume: | 41st COSPAR Scientific Assembly | Number: | 41 | First Page: | C3.2-14-16 | Abstract: | We have analysed thermal emission spectra obtained from Planetary Fourier Spectrometer (PFS) onboard Mars Express (MEX) for Martian Year (MY) 28 in presence and absence of dust storm at low latitude. A radiative transfer model for dusty atmosphere of Mars is developed to estimate the thermal emission spectra at latitude range 0-10oS, 10-20oS and 20-30oS. These calculations are made at Ls=240o, 280o, 300o, and 320o between wave numbers 250-1400 cm-1. We have also retrieved brightness temperatures from thermal emission spectra by inverting the Planck function. The model reproduces the observed features at wave numbers 600-750 cm-1 and 900-1200 cm-1 due to absorptions by CO2 and dust respectively. In presence of dust storm thermal emission spectra and brightness temperature are reduced by a factor of ~ 2 between wave numbers 900-1200 cm-1. The altitude profiles of dust concentration are also estimated for different aerosol particles of sizes 0.2 to 3 micron. The best fit to the PFS measurements is obtained in presence of aerosol particle of size 0.2 micron. | Conference Name: | 41st COSPAR Scientific Assembly | Conference Place: | Istanbul, Turchia | Conference Date: | 30 luglio - 7 agosto, 2016 | URI: | http://hdl.handle.net/20.500.12386/26442 | Bibcode ADS: | 2016cosp...41E.786H | Fulltext: | open |
Appears in Collections: | 3.02 Abstract in Atti di convegno |
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Haider COspar2016 C3.2.pdf | Abstract | 52.04 kB | Adobe PDF | View/Open |
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