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Long-term trends of mesospheric temperatures over Kiruna (68N, 21E) during 2003-2014

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Long-term trends of mesospheric temperatures over Kiruna (68N, 21E) during 2003-2014
Other Titles
키루나 상공 중간권 온도의 2003-2014년동안 장기 변화 경향
Gawon Kim
Kim, Jeong-Han
Youngsun Lee
Yong Ha Kim
Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
Climate change; Mesospheric temperature; OH airglow; Rotational temperature
Issue Date
Gawon Kim, et al. 2017. "Long-term trends of mesospheric temperatures over Kiruna (68N, 21E) during 2003-2014". JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, 161(0): 83-87.
We have analyzed mesospheric temperatures from OH airglow measurements with a Fourier Transform Spectrometer (FTS) in the period of 2003?2014 at Kiruna (68°N, 21°E). We have derived the seasonal variation, solar response and long-term variation of mesospheric temperatures over Kiruna. In addition, FTS temperatures show signals of sudden stratospheric warming (SSW). After removing the estimated solar response of 5.0 ± 1.5 K/100SFU, we find the long-term trend of ?2.6 ± 1.5 K/decade, indicating a weak cooling trend at the high latitude. We discuss our results by comparing with those of Microwave Limb Sounder (MLS) instrument on board Aura satellite.
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