Articles | Volume 13, issue 7
https://doi.org/10.5194/gmd-13-3145-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-13-3145-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
An ensemble Kalman filter data assimilation system for the whole neutral atmosphere
Department of Earth and Planetary Science, The University of Tokyo, Tokyo, Japan
Kaoru Sato
Department of Earth and Planetary Science, The University of Tokyo, Tokyo, Japan
Kazuyuki Miyazaki
Jet Propulsion Laboratory, California Institute of Technology,
Pasadena, CA, USA
Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
Shingo Watanabe
Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
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- Contribution of Gravity Waves to Universal Vertical Wavenumber (∼m−3) Spectra Revealed by a Gravity‐Wave‐Permitting General Circulation Model H. Okui et al. 10.1029/2021JD036222
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13 citations as recorded by crossref.
- Multi‐Layer Evolution of Acoustic‐Gravity Waves and Ionospheric Disturbances Over the United States After the 2022 Hunga Tonga Volcano Eruption P. Inchin et al. 10.1029/2023AV000870
- Numerical Simulation of Orographic Gravity Waves Observed Over Syowa Station: Wave Propagation and Breaking in the Troposphere and Lower Stratosphere M. Kohma et al. 10.1029/2023JD039425
- Intercomparison of middle atmospheric meteorological analyses for the Northern Hemisphere winter 2009–2010 J. McCormack et al. 10.5194/acp-21-17577-2021
- A Comparison of Stratospheric Gravity Waves in a High‐Resolution General Circulation Model With 3‐D Satellite Observations H. Okui et al. 10.1029/2023JD038795
- An update on the 4D-LETKF data assimilation system for the whole neutral atmosphere D. Koshin et al. 10.5194/gmd-15-2293-2022
- Characteristics and Mechanism of Interhemispheric Coupling in Austral Winter Revealed by Long‐Term Reanalysis Data for the Whole Middle Atmosphere D. Koshin & K. Sato 10.1029/2023JD039687
- Characteristics of the Intraseasonal Oscillation in the Equatorial Mesosphere and Lower Thermosphere Region Revealed by Satellite Observation and Global Analysis by the JAGUAR Data Assimilation System D. Koshin et al. 10.1029/2022JD036816
- Scientific motivations and future directions of whole atmosphere modeling N. Pedatella 10.3389/fspas.2022.957007
- A Study of Zonal Wavenumber 1 Rossby-Gravity Wave Using Long-Term Reanalysis Data for the Whole Neutral Atmosphere H. SEKIDO et al. 10.2151/jmsj.2024-029
- The JAGUAR-DAS whole neutral atmosphere reanalysis: JAWARA D. Koshin et al. 10.1186/s40645-024-00674-3
- Contribution of Gravity Waves to Universal Vertical Wavenumber (∼m−3) Spectra Revealed by a Gravity‐Wave‐Permitting General Circulation Model H. Okui et al. 10.1029/2021JD036222
- Interhemispheric Coupling Study by Observations and Modelling (ICSOM): Concept, Campaigns, and Initial Results K. Sato et al. 10.1029/2022JD038249
- Formation of a Mesospheric Inversion Layer and the Subsequent Elevated Stratopause Associated With the Major Stratospheric Sudden Warming in 2018/19 H. Okui et al. 10.1029/2021JD034681
1 citations as recorded by crossref.
Latest update: 03 Mar 2025
Short summary
A new data assimilation system with a 4D local ensemble transform Kalman filter for the whole neutral atmosphere is developed using a T42L124 general circulation model. A conventional observation dataset and bias-corrected satellite temperature data are assimilated. After the improvements of the forecast model, the assimilation parameters are optimized. The minimum optimal number of ensembles is also examined. Results are evaluated using the reanalysis data and independent radar observations.
A new data assimilation system with a 4D local ensemble transform Kalman filter for the whole...