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Department
Department of Observation and Data Assimilation Research
First Laboratory
ISHIBASHI Toshiyuki
ISHIBASHI Toshiyuki
[Japanese]
Job title
Senior Researcher / The 1st Lab. / Department of Observation and Data Assimilation Research
E-mail
Personal
Expertise
Data assimilation
Degree
Doctor of Science
Publications
Ishibashi, T., 2025: Improved atmospheric state analysis for reanalysis and reforecast: suppressing fast-growing error modes.
International Journal of Climatology
,
45
, e70004.
Ishibashi, T., 2024: Global atmospheric state analysis using objective Gaussian probability density functions.
Scientific Reports
,
14
, 22275.
Ishibashi, T., 2024: Accurate Global Atmospheric State Analysis using Objective Error Statistics Including Observation Error Dependence on Water Substance Field.
Earth and Space Science
,
11
, e2023EA003029.
Ishibashi, T., 2024: Atmosphere and sea surface temperature coupled data assimilation with enhanced use of SST-sensitive microwave radiances.
Monthly Weather Review
,
152
, 2505-2526.
Ishibashi, T., 2023: Network Structure of Atmospheric Perturbations.
Mon. Wea. Rev.
,
151
, 1849-1861.
Ishibashi, T., 2020: Improvement of accuracy of global numerical weather prediction using refined error covariance matrices.
Monthly Weather Review
,
148
, 2623-2643.
Ishibashi, T., 2018: Adjoint-Based Observation Impact Estimation with Direct Verification Using Forward Calculation.
Monthly Weather Review
,
146
, 2837-2858.
Ishibashi, T., 2015: Tensor Formulation of Ensemble-Based Background Error Covariance Matrix Factorization.
Monthly Weather Review
,
143
, 4963-4973.
Ishibashi, T., 2014: Observing system simulation experiments with multiple Methods.
Proc. of SPIE
,
9265
, 926508-12.
Ishibashi, T., 2012: Simplified basic state update in the JMA global 4D-Var.
CAS/JSC WGNE Res. Activities in Atm. And Oceanic Modelling
,
42
Ishibashi, T., 2011: Tangent linear approximation based observation data impact estimation in 4D-Var.
Q.J.R. Meteorol. Soc.
,
137
: 1898-1912.
Ishibashi, T., 2011: Cloudy radiance assimilation with extension of control variables in 4D-Var.
CAS/JSC WGNE Res. Activities in Atm. And Oceanic Modelling
,
41
Ishibashi, T., 2011: Effects of basic state update in the JMA global 4D-Var.
CAS/JSC WGNE Res. Activities in Atm. And Oceanic Modelling
,
41
Second author
Okamoto, K., T. Ishibashi, I. Okabe, and H. Shimizu, 2024: Extension of all-sky radiance assimilation to hyperspectral infrared sounders.
Quarterly Journal of the Royal Meteorological Society
,
150(765)
, 5472-5497.
Okamoto, K., Ishibashi, T., Okabe, I., 2023: All-sky infrared radiance assimilation of a geostationary satellite in the Japan meteorological Agency's global system.
Quarterly Journal of the Royal Meteorological Society
,
149
, 2477-2503.
Fujii, Y., T. Ishibashi, T. Yasuda, Y. Takaya, C. Kobayashi, and I. Ishikawa, 2021: Improvements in tropical precipitation and sea surface air temperature fields in a coupled atmosphere?ocean data assimilation system.
Quarterly Journal of the Royal Meteorological Society
,
147
, 1317-1343.
Okamoto, K., T. Ishibashi, S. Ishii, P. Baron, K. Gamo, T. Y. Tanaka, K. Yamashita, and T. Kubota, 2018: Feasibility study for future space-borne coherent Doppler wind lidar. part 3: Impact assessment using sensitivity observing system simulation experiments.
Journal of the Meteorological Society of Japan
,
96
, 179-199.
Project
Research on Data Assimilation Technology and High-level Use of Observation Data
Research on Atmosphere, Ocean and Earth System Modeling
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