Radiative transfer code for thermal and near infrared with multiple scattering
I.V. Zadvornykh1, K.G. Gribanov1, V.I. Zakharov1, R. Imasu2
1Institute of Natural Sciences, 620083, 51 Lenina, Ekaterinburg, Russia
2Atmosphere and Ocean Research Institute, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8568, Japan
Keywords: перенос излучения, дистанционное зондирование, многократное рассеяние, GOSAT, radiative transfer, remote sensing, multiple scattering
Abstract
FIRE-ARMS software was supplemented with the vector radiative transfer model VLIDORT. The new version of the software allows a simulation of the outgoing thermal infrared radiation (TIR) from Earth and solar short infrared radiation (SWIR) reflected from the surface, taking into account multiple scattering for the same model and atmospheric sensing geometry. We performed spectra simulation of the outgoing radiation in TIR and SWIR with multiple scattering in a cloudless atmosphere and comparison of the spectra simulated with the spectra measured by GOSAT satellite spectrometers in cloudless atmosphere over Western Siberia. Calculated weighting functions show that simultaneous use of TIR and SWIR will improve the height resolution in vertical profiling of methane concentrations in the atmosphere.
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