Seasonal Distribution of Gravity Waves Near the Stratopause in 2019–2022

Author:

Xu Shuang1ORCID,Carstens Justin N.2ORCID,France Jeff A.3ORCID,Randall Cora E.45ORCID,Yue Jia67ORCID,Harvey V. Lynn45,Gong Jie7ORCID,Lumpe Jerry8ORCID,Hoffmann Lars9ORCID,Russell James M.1

Affiliation:

1. Department of Atmospheric and Planetary Sciences Hampton University Hampton VA USA

2. Bradley Department of Electrical and Computer Engineering Virginia Polytechnic Institute and State University Blacksburg VA USA

3. White Ridge Solutions LLC Frederick MD USA

4. Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USA

5. Department of Atmospheric and Oceanic Sciences University of Colorado Boulder Boulder CO USA

6. Physics Department Catholic University of America Washington DC USA

7. NASA Goddard Space Flight Center Greenbelt MD USA

8. Computational Physics, Inc. Boulder CO USA

9. Jülich Supercomputing Centre Forschungszentrum Jülich Jülich Germany

Abstract

AbstractThe cloud imaging and particle size (CIPS) instrument onboard the Aeronomy of Ice in the Mesosphere satellite provides images of gravity waves (GWs) near the stratopause and lowermost mesosphere (altitudes of 50–55 km). GW identification is based on Rayleigh Albedo Anomaly (RAA) variances, which are derived from GW‐induced fluctuations in Rayleigh scattering at 265 nm. Based on 3 years of CIPS RAA variance data from 2019 to 2022, we report for the first time the seasonal distribution of GWs entering the mesosphere with high (7.5 km) horizontal resolution on a near‐global scale. Seasonally averaged GW variances clearly show spatial and temporal patterns of GW activity, mainly due to the seasonal variation of primary GW sources such as convection, the polar vortices and flow over mountains. Measurements of stratospheric GWs derived from Atmospheric InfraRed Sounder (AIRS) observations of 4.3 μm brightness temperature perturbations within the same 3‐year time range are compared to the CIPS results. The comparisons show that locations of GW hotspots are similar in the CIPS and AIRS observations. Variability in GW variances and the monthly changes in background zonal wind suggest a strong GW‐wind correlation. This study demonstrates the utility of the CIPS GW variance data set for statistical investigations of GWs in the lowermost mesosphere, as well as provides a reference for location/time selection for GW case studies.

Funder

National Aeronautics and Space Administration

National Science Foundation

Publisher

American Geophysical Union (AGU)

Subject

General Earth and Planetary Sciences,Environmental Science (miscellaneous)

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Quiet Time Thermospheric Gravity Waves Observed by GOCE and CHAMP;Journal of Geophysical Research: Space Physics;2024-01

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