Articles | Volume 33, issue 3
https://doi.org/10.5194/angeo-33-267-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/angeo-33-267-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Regular paper
| 
04 Mar 2015
Regular paper |
| 04 Mar 2015
Long-term response of stratospheric ozone and temperature to solar variability
I. Bordi
CORRESPONDING AUTHOR
Department of Physics, Sapienza University of Rome, Rome, Italy
Research Centre CIABC, Sapienza University of Rome, Rome, Italy
F. Berrilli
Department of Physics, University of Rome Tor Vergata, Rome, Italy
E. Pietropaolo
Department of Physical and Chemical Sciences, University of L'Aquila, L'Aquila, Italy
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Valerio Lembo, Isabella Bordi, and Antonio Speranza
Earth Syst. Dynam., 8, 295–312, https://doi.org/10.5194/esd-8-295-2017, https://doi.org/10.5194/esd-8-295-2017, 2017
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The study wishes to better characterize the annual and semiannual cycles of surface temperature and baroclinicity at midlatitudes as observed in ERA-Interim reanalysis data and AOGCM simulations. Results show that at the semiannual frequency model phases between surface temperature and baroclinicity have wide dispersion in both hemispheres with large errors in the estimates, denoting uncertainty and a degree of disagreement among models.
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Forecasting the thermosphere (atmosphere's uppermost layer from 90 to 800 km altitude) is crucial to space mission design, spacecraft operations and space surveillance. The thermosphere is controlled by the Sun through variable solar extreme-ultraviolet radiation and the solar wind. We show how the solar indices Mg II and Ap may be used in forecasting thermospheric density at 260 km, a very low altitude, where the GOCE satellite operated from 2009 to 2013, during the full rise of solar cycle 24.
Valerio Lembo, Isabella Bordi, and Antonio Speranza
Earth Syst. Dynam., 8, 295–312, https://doi.org/10.5194/esd-8-295-2017, https://doi.org/10.5194/esd-8-295-2017, 2017
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The study wishes to better characterize the annual and semiannual cycles of surface temperature and baroclinicity at midlatitudes as observed in ERA-Interim reanalysis data and AOGCM simulations. Results show that at the semiannual frequency model phases between surface temperature and baroclinicity have wide dispersion in both hemispheres with large errors in the estimates, denoting uncertainty and a degree of disagreement among models.
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The paper investigates the long-term variability in stratospheric ozone (O3) and temperature (T) from 1979 to 2013, and its relationship with the 11-year solar cycle. It is found that O3 and T anomalies are characterized by long-term trends; (ii) correlations are consistent with photochemical reactions and large-scale transports; and (iii) wavelet cross-spectra between O3 and Mg II index show common power during the 11-year period, proving the impact of the solar variability on the atmosphere.
The paper investigates the long-term variability in stratospheric ozone (O3) and temperature (T)...
