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Featured researches published by Kazutoshi Onogi.


Eos, Transactions American Geophysical Union | 2008

Progress and Prospects for Reanalysis for Weather and Climate

Kevin E. Trenberth; Toshio Koike; Kazutoshi Onogi

Analyses of global atmospheric observations in real time for numerical weather prediction (NWP) lack continuity over time as the operational system evolves. Reanalysis of the observations—with more complete data, improved quality control, and a constant state-of-the-art assimilating model and analysis system—greatly improves the homogeneity of the record and makes it useful for examining climate variations. This whole endeavor is now referred to as “reanalysis.”


Quarterly Journal of the Royal Meteorological Society | 2005

The ERA‐40 re‐analysis

Sakari M. Uppala; Per Kallberg; A. J. Simmons; U. Andrae; V. da Costa Bechtold; M. Fiorino; J. K. Gibson; J. Haseler; A. Hernandez; Graeme Kelly; Xiao-Feng Li; Kazutoshi Onogi; S. Saarinen; N. Sokka; Richard P. Allan; Erik Andersson; Klaus Arpe; Magdalena A. Balmaseda; Anton Beljaars; L. van de Berg; Jean-Raymond Bidlot; Niels Bormann; S. Caires; F. Chevallier; A. Dethof; M. Dragosavac; Michael Fisher; Manuel Fuentes; Stefan Hagemann; E. Hólm


Journal of The Meteorological Society of Japan | 2007

The JRA-25 Reanalysis

Kazutoshi Onogi; Junichi Tsutsui; Hiroshi Koide; Masami Sakamoto; Shinya Kobayashi; Hiroaki Hatsushika; Takanori Matsumoto; Nobuo Yamazaki; Hirotaka Kamahori; Kiyotoshi Takahashi; Shinji Kadokura; Koji Wada; Koji Kato; Ryo Oyama; Tomoaki Ose; Nobutaka Mannoji; Ryusuke Taira


Journal of The Meteorological Society of Japan | 2015

The JRA-55 Reanalysis: General Specifications and Basic Characteristics

Shinya Kobayashi; Yukinari Ota; Yayoi Harada; Ayataka Ebita; Masami Moriya; Hirokatsu Onoda; Kazutoshi Onogi; Hirotaka Kamahori; Chiaki Kobayashi; Hirokazu Endo; Kengo Miyaoka; Kiyotoshi Takahashi


Sola | 2011

The Japanese 55-year Reanalysis “JRA-55”: An Interim Report

Ayataka Ebita; Shinya Kobayashi; Yukinari Ota; Masami Moriya; Ryoji Kumabe; Kazutoshi Onogi; Yayoi Harada; Soichiro Yasui; Kengo Miyaoka; Kiyotoshi Takahashi; Hirotaka Kamahori; Chiaki Kobayashi; Hirokazu Endo; Motomu Soma; Yoshinori Oikawa; Takahisa Ishimizu


Quarterly Journal of the Royal Meteorological Society | 2005

JRA‐25: Japanese 25‐year re‐analysis project—progress and status

Kazutoshi Onogi; Hiroshi Koide; Masami Sakamoto; Shinya Kobayashi; Junichi Tsutsui; Hiroaki Hatsushika; Takanori Matsumoto; Nobuo Yamazaki; Hirotaka Kamahori; Kiyotoshi Takahashi; Koji Kato; Ryo Oyama; Tomoaki Ose; Shinji Kadokura; Koji Wada


Journal of The Meteorological Society of Japan | 2016

The JRA-55 Reanalysis: Representation of Atmospheric Circulation and Climate Variability

Yayoi Harada; Hirotaka Kamahori; Chiaki Kobayashi; Hirokazu Endo; Shinya Kobayashi; Yukinari Ota; Hirokatsu Onoda; Kazutoshi Onogi; Kengo Miyaoka; Kiyotoshi Takahashi


Atmospheric Chemistry and Physics | 2016

Introduction to the SPARC Reanalysis Intercomparison Project (S-RIP) and overview of the reanalysis systems

Masatomo Fujiwara; Jonathon S. Wright; G. L. Manney; Lesley J. Gray; James Anstey; Thomas Birner; Sean M. Davis; Edwin P. Gerber; V. Lynn Harvey; M. I. Hegglin; Cameron R. Homeyer; John A. Knox; Kirstin Krüger; Alyn Lambert; Craig S. Long; Patrick Martineau; Andrea Molod; B. M. Monge-Sanz; Michelle L. Santee; Susann Tegtmeier; Simon Chabrillat; David G. H. Tan; D. R. Jackson; Saroja Polavarapu; Gilbert P. Compo; Rossana Dragani; Wesley Ebisuzaki; Yayoi Harada; Chiaki Kobayashi; Will McCarty


Journal of The Meteorological Society of Japan | 2006

Impact of Wind Profile Retrievals on the Analysis of Tropical Cyclones in the JRA-25 Reanalysis

Hiroaki Hatsushika; Junichi Tsutsui; Michael Fiorino; Kazutoshi Onogi


Sola | 2014

Preliminary Results of the JRA-55C, an Atmospheric Reanalysis Assimilating Conventional Observations Only

Chiaki Kobayashi; Hirokazu Endo; Yukinari Ota; Shinya Kobayashi; Hirokatsu Onoda; Yayoi Harada; Kazutoshi Onogi; Hirotaka Kamahori

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Hirotaka Kamahori

Japan Meteorological Agency

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Shinya Kobayashi

Japan Meteorological Agency

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Chiaki Kobayashi

Japan Meteorological Agency

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Yayoi Harada

Japan Meteorological Agency

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Hiroaki Hatsushika

Central Research Institute of Electric Power Industry

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Hirokazu Endo

Japan Meteorological Agency

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Junichi Tsutsui

Central Research Institute of Electric Power Industry

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Yukinari Ota

Japan Meteorological Agency

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Hirokatsu Onoda

Japan Meteorological Agency

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