Case Study: Summer Convective Gravity Wave Event over Europe Characterized By Lidars, Satellite, All-Sky Imagers and ECMWF

• Main Authors: Franco-Diaz, Eframir, Strelnikova, Irina, Holt, Laura, Wing, Robin, Gerding, Michael, Baumgarten, Gerd, Noble, Phoebe, Ramachandran, Kesava, Wright, Corwin, J., Hauchecorne, Alain, Keckhut, Philippe, Khaykin, Sergey
• Other Authors: Computational Physics, Inc., Leibniz-Institut für Atmosphärenphysik (IAP), Universität Rostock-Leibniz Association, NorthWest Research Associates Boulder (NWRA), University of Bath Bath, STRATO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2024
• Subjects: [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]; Arctic; Alomar; Burlington
• Online Access: https://insu.hal.science/insu-04683853

International audience In this work, we present a case study of a summer convective gravity wave event that propagated across Europe. This event was observed by lidars and satellite July 11-12, 2023. For this case, we show how this gravity wave event propagates through the 3 wind lidars currently in operation in Europe: the newly developed IAP wind lidar located in Kühlungsborn, Arctic Lidar Observatory for Middle Atmosphere Research (ALOMAR) and Observatoire Haute Provence (OHP) wind lidar. In addition, we use radiance measurements obtained by NASA’s Aqua satellite Atmospheric Infrared Sounder (AIRS) instrument and precipitation and cloud observations from the EUMETSAT to further characterize the event and the source of deep convection. We use ECMWF to complement our measurements, as well as to evaluate how the event looks in the model compared to the measurements. To see the propagation of the wave at around 90 km, we use airglow imagers co-located at Kühlungsborn. Convective gravity waves are highly intermittent in both space and time, and this event is in the tail of the distribution. Characterizing this event is important because it can provide observational guidance for model parametrizations.