Toward an Improved Representation of Middle Atmospheric Dynamics Thanks to the ARISE Project
E Blanc (Arpajon)
L. Ceranna (Federal Institute for Geosciences and Natural Resources)
A Hauchecorne (CNRS - Guyancourt)
A Charlton-Perez (University of Reading)
E. Marchetti (University of Florence)
L. G. Evers (TU Delft - Applied Geophysics and Petrophysics, Royal Netherlands Meteorological Institute (KNMI))
T Kvaerna (Norsar)
J. Lastovicka (Institute of Atmospheric Physics of the Czech Republic)
L. Eliasson (Instiutet for rymdfysik)
N. B. Crosby (Royal Belgian Institute for Space Aeronomy (BIRA-IASB))
P. Blanc-Benon (École Centrale de Lyon)
A le Pichon (Arpajon)
N Brachet (Arpajon)
C Pilger (Federal Institute for Geosciences and Natural Resources)
P Keckhut (CNRS - Guyancourt)
J. D. Assink (Royal Netherlands Meteorological Institute (KNMI))
P. S.M. Smets (Royal Netherlands Meteorological Institute (KNMI), TU Delft - Applied Geophysics and Petrophysics)
C. F. Lee (University of Reading)
J. Kero (Instiutet for rymdfysik)
T. Sindelarova (Institute of Atmospheric Physics of the Czech Republic)
N. Kämpfer (University of Bern)
R. Rüfenacht (University of Bern)
T. Farges (Arpajon)
C. Millet (Arpajon)
S. P. Näsholm (Norsar)
S. J. Gibbons (Norsar)
P. J. Espy (Norwegian University of Science and Technology (NTNU))
R. E. Hibbins (Norwegian University of Science and Technology (NTNU))
P Heinrich (Arpajon)
M Ripepe (University of Florence)
S. Khaykin (CNRS - Guyancourt)
N. Mze (CNRS - Guyancourt)
J. Chum (Institute of Atmospheric Physics of the Czech Republic)
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Abstract
This paper reviews recent progress toward understanding the dynamics of the middle atmosphere in the framework of the Atmospheric Dynamics Research InfraStructure in Europe (ARISE) initiative. The middle atmosphere, integrating the stratosphere and mesosphere, is a crucial region which influences tropospheric weather and climate. Enhancing the understanding of middle atmosphere dynamics requires improved measurement of the propagation and breaking of planetary and gravity waves originating in the lowest levels of the atmosphere. Inter-comparison studies have shown large discrepancies between observations and models, especially during unresolved disturbances such as sudden stratospheric warmings for which model accuracy is poorer due to a lack of observational constraints. Correctly predicting the variability of the middle atmosphere can lead to improvements in tropospheric weather forecasts on timescales of weeks to season. The ARISE project integrates different station networks providing observations from ground to the lower thermosphere, including the infrasound system developed for the Comprehensive Nuclear-Test-Ban Treaty verification, the Lidar Network for the Detection of Atmospheric Composition Change, complementary meteor radars, wind radiometers, ionospheric sounders and satellites. This paper presents several examples which show how multi-instrument observations can provide a better description of the vertical dynamics structure of the middle atmosphere, especially during large disturbances such as gravity waves activity and stratospheric warming events. The paper then demonstrates the interest of ARISE data in data assimilation for weather forecasting and re-analyzes the determination of dynamics evolution with climate change and the monitoring of atmospheric extreme events which have an atmospheric signature, such as thunderstorms or volcanic eruptions.
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