Articles | Volume 16, issue 5
https://doi.org/10.5194/acp-16-3631-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/acp-16-3631-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Variational data assimilation for the optimized ozone initial state and the short-time forecasting
Soon-Young Park
Institute of Environmental Studies, Pusan National University, Busan, Republic of Korea
Dong-Hyeok Kim
Institute of Environmental Studies, Pusan National University, Busan, Republic of Korea
Soon-Hwan Lee
Department of Earth Science Education, Pusan National University, Busan, Republic of Korea
Hwa Woon Lee
CORRESPONDING AUTHOR
Division of Earth Environmental System, Pusan National University, Busan, Republic of Korea
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Cited
12 citations as recorded by crossref.
- What Can We Expect from Data Assimilation for Air Quality Forecast? Part II: Analysis with a Semi-Real Case B. Bessagnet et al. https://doi.org/10.1175/JTECH-D-18-0117.1
- A multiphase CMAQ version 5.0 adjoint S. Zhao et al. https://doi.org/10.5194/gmd-13-2925-2020
- Development of four-dimensional variational assimilation system based on the GRAPES–CUACE adjoint model (GRAPES–CUACE-4D-Var V1.0) and its application in emission inversion C. Wang et al. https://doi.org/10.5194/gmd-14-337-2021
- Machine Learning-Augmented 3D-Variational Data Assimilation for Wintertime Diurnal Variability of Surface Ozone Over China J. Fan et al. https://doi.org/10.1109/JSTARS.2026.3720234
- Better prediction of surface ozone by a superensemble method using emission sensitivity runs in Japan M. Kajino et al. https://doi.org/10.1016/j.aeaoa.2021.100120
- Fundamentals of data assimilation applied to biogeochemistry P. Rayner et al. https://doi.org/10.5194/acp-19-13911-2019
- Confronting the boundary layer data gap: evaluating new and existing methodologies of probing the lower atmosphere T. Bell et al. https://doi.org/10.5194/amt-13-3855-2020
- Implementation of an ensemble Kalman filter in the Community Multiscale Air Quality model (CMAQ model v5.1) for data assimilation of ground-level PM2.5 S. Park et al. https://doi.org/10.5194/gmd-15-2773-2022
- Hybrid IFDMB/4D-Var inverse modeling to constrain the spatiotemporal distribution of CO and NO2 emissions using the CMAQ adjoint model J. Moon et al. https://doi.org/10.1016/j.atmosenv.2024.120490
- A regional data assimilation system for estimating CO surface flux from atmospheric mixing ratio observations—a case study of Xuzhou, China L. Lu et al. https://doi.org/10.1007/s11356-019-04246-7
- An evaluation of digital filtering and 4DVar data assimilation in the WRF model towards the simulation of tropical cyclones G. Tiwari et al. https://doi.org/10.1016/j.asr.2024.02.004
- Multisource Observation-Constrained Tuning for Air Quality Forecasting in a Machine Learning-Enhanced NOAA Unified Forecast System J. Xing et al. https://doi.org/10.1021/acs.est.6c04600
12 citations as recorded by crossref.
- What Can We Expect from Data Assimilation for Air Quality Forecast? Part II: Analysis with a Semi-Real Case B. Bessagnet et al. https://doi.org/10.1175/JTECH-D-18-0117.1
- A multiphase CMAQ version 5.0 adjoint S. Zhao et al. https://doi.org/10.5194/gmd-13-2925-2020
- Development of four-dimensional variational assimilation system based on the GRAPES–CUACE adjoint model (GRAPES–CUACE-4D-Var V1.0) and its application in emission inversion C. Wang et al. https://doi.org/10.5194/gmd-14-337-2021
- Machine Learning-Augmented 3D-Variational Data Assimilation for Wintertime Diurnal Variability of Surface Ozone Over China J. Fan et al. https://doi.org/10.1109/JSTARS.2026.3720234
- Better prediction of surface ozone by a superensemble method using emission sensitivity runs in Japan M. Kajino et al. https://doi.org/10.1016/j.aeaoa.2021.100120
- Fundamentals of data assimilation applied to biogeochemistry P. Rayner et al. https://doi.org/10.5194/acp-19-13911-2019
- Confronting the boundary layer data gap: evaluating new and existing methodologies of probing the lower atmosphere T. Bell et al. https://doi.org/10.5194/amt-13-3855-2020
- Implementation of an ensemble Kalman filter in the Community Multiscale Air Quality model (CMAQ model v5.1) for data assimilation of ground-level PM2.5 S. Park et al. https://doi.org/10.5194/gmd-15-2773-2022
- Hybrid IFDMB/4D-Var inverse modeling to constrain the spatiotemporal distribution of CO and NO2 emissions using the CMAQ adjoint model J. Moon et al. https://doi.org/10.1016/j.atmosenv.2024.120490
- A regional data assimilation system for estimating CO surface flux from atmospheric mixing ratio observations—a case study of Xuzhou, China L. Lu et al. https://doi.org/10.1007/s11356-019-04246-7
- An evaluation of digital filtering and 4DVar data assimilation in the WRF model towards the simulation of tropical cyclones G. Tiwari et al. https://doi.org/10.1016/j.asr.2024.02.004
- Multisource Observation-Constrained Tuning for Air Quality Forecasting in a Machine Learning-Enhanced NOAA Unified Forecast System J. Xing et al. https://doi.org/10.1021/acs.est.6c04600
Saved (final revised paper)
Latest update: 09 Sep 2026
Short summary
In order to improve the predictability of air quality, we optimize initial ozone state throughout the 4D-Var data assimilation. Previously developed code for the data assimilation has been modified to consider background error in matrix form, and various numerical tests are conducted. A surface observational assimilation is conducted and the statistical results for the 12 h assimilation periods show a 49.4 % decrease in RMSE and a 59.9 % increase in IOA.
In order to improve the predictability of air quality, we optimize initial ozone state...
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