ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2012, Vol. 9, No. 4, pp. 133-139

Comparison of ground-based OH temperature data measured at midlatitudes with Aura MLS v3.3

I.V. Medvedeva 1, A.I. Semenov 2, V.I. Perminov 2, A.V. Tatarnikov 1, A.B. Beletsky 1
1 Institute of Solar-Terrestrial Physics (ISTP), Siberian Branch, Russian Academy of Sciences, Irkutsk, Russia
2 Obukhov Institute of Atmospheric Physics (IAP), Russian Academy of Sciences, Moscow, Russia
We analyzed the data of ground-based spectrometer measurements of the mesopause temperature (~87 km) obtained
from ground-based spectrographic measurements of the hydroxyl emission (834.0 nm, band (6,2)) at the ISTP
Geophysical observatory (52N, 103E) and Zvenigorod station (56N, 37E), the period under analyses is 2008-2011. The
description of spectrometer equipment and the processing technique of registered OH emission spectrum is provided.
Comparison of the results of ground-based measurements with the satellite data on the atmospheric temperature
obtained by the EOS Aura Microwave Limb Sounder (MLS) was carried out. Using the Fourier analysis, mean values
of the mesopause temperature during 2008-2011 for Irkutsk and Zvenigorod regions according to ground-based and
satellite data were obtained. It was revealed that at the 0,002hPa height level Aura MLS has a cold bias of 10.1 К and
9.4 К compared with OH (6-2) at Irkutsk and Zvenigorod stations respectively
Keywords: temperature, OH emission, mesopause, ground-based and satellite measurements
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