TY - JOUR
T1 - Trends in the airglow temperatures in the mlt region—part 3
T2 - Ground-based and saber measurements
AU - Huang, Tai Yin
AU - Vanyo, Michael
N1 - Funding Information:
Acknowledgments: T.-Y. Huang and M. Vanyo acknowledge support from the US NSF AGS-1903346 to Pennsylvania State University. We greatly appreciate Chris Hall for providing the meteor radar temperature at Svalbard and Christoph Kalicinsky for providing the OH* temperature data measured at Wuppertal and Hohenpeissenberg. SABER temperature level 2 data was downloaded from http://saber.gats-inc.com/ (accessed on 20 February 2021). F10.7 values were obtained from the NASA website (http://omniweb.gsfc.nasa.gov/form/dx1.html, accessed on 20 November 2020). Ap index and Dst index values were obtained from the World Data Center for Geomagnetism, Kyoto website (http://wdc.kugi.kyoto-u.ac.jp/, accessed on 4 March 2021).
Funding Information:
Funding: This research was funded by US NSF AGS-1903346 to The Pennsylvania State University.
Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/9
Y1 - 2021/9
N2 - Ground-based temperature measurements at Svalbard, Wuppertal, and Hohenpeissenberg were analyzed to obtain F10.7, Ap index, and Dst index trends. The trends were then compared to those obtained from Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) temperature measurements at the same locations. Trend analysis was carried out for overlapped time periods, full range of available data, and the CO2-detrended full range of available data. The Svalbard meteor radar (SABER) temperature showed a weak (moderate) correlation with F10.7 and a moderate (weak) correlation with Ap and Dst indices. The trends in the Wuppertal OH* temperature compare well with the SABER temperature when a full range of data is used in the analysis. Both temperatures had a similar F10.7 trend with the same level of correlation coefficient. The F10.7 trend in the Hohenpeissenberg OH* temperature compared well with that obtained by SABER, but the former displayed a weak correlation. The Hohenpeissenberg data displayed a very weak correlation with Ap and Dst indices. Our study clearly shows that a longer dataset would better capture trends in temperature, as was evidenced by the results of Wuppertal data. The CO2-detrended temperatures overall showed slightly larger trend values with a slightly better correlation.
AB - Ground-based temperature measurements at Svalbard, Wuppertal, and Hohenpeissenberg were analyzed to obtain F10.7, Ap index, and Dst index trends. The trends were then compared to those obtained from Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) temperature measurements at the same locations. Trend analysis was carried out for overlapped time periods, full range of available data, and the CO2-detrended full range of available data. The Svalbard meteor radar (SABER) temperature showed a weak (moderate) correlation with F10.7 and a moderate (weak) correlation with Ap and Dst indices. The trends in the Wuppertal OH* temperature compare well with the SABER temperature when a full range of data is used in the analysis. Both temperatures had a similar F10.7 trend with the same level of correlation coefficient. The F10.7 trend in the Hohenpeissenberg OH* temperature compared well with that obtained by SABER, but the former displayed a weak correlation. The Hohenpeissenberg data displayed a very weak correlation with Ap and Dst indices. Our study clearly shows that a longer dataset would better capture trends in temperature, as was evidenced by the results of Wuppertal data. The CO2-detrended temperatures overall showed slightly larger trend values with a slightly better correlation.
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U2 - 10.3390/atmos12091161
DO - 10.3390/atmos12091161
M3 - Article
AN - SCOPUS:85114677298
VL - 12
JO - ATMOSPHERE
JF - ATMOSPHERE
SN - 2073-4433
IS - 9
M1 - 1161
ER -