The JRA-3Q Reanalysis Toggle navigation J-STAGE home Browse All titles All subject areas All publishers Search articles Search J-STAGE Data About J-STAGE Overview Services and features Public data Terms and Policy News and PR News Maintenance information Special contents Media resources Support User manuals Browser compatibility FAQ Contact Sitemap Sign in Cart EN English 日本語 Browse All titles All subject areas All publishers Search articles Search J-STAGE Data About J-STAGE Overview Services and features Public data Terms and Policy News and PR News Maintenance information Special contents Media resources Support User manuals Browser compatibility FAQ Contact Sitemap Sign in Cart EN English 日本語 Advanced search Journal of the Meteorological Society of Japan. Ser. II Online ISSN : 2186-9057 Print ISSN : 0026-1165 ISSN-L : 0026-1165 Publisher's Home Journal home Advance online publication All issues Featured articles About the journal J-STAGE home / Journal of the Meteorological ... / Volume 102 (2024) Issue 1 / Article overview Article The JRA-3Q Reanalysis Yuki KOSAKA, Shinya KOBAYASHI, Yayoi HARADA, Chiaki KOBAYASHI, Hiroaki NAOE, Koichi YOSHIMOTO, Masashi HARADA, Naochika GOTO, Jotaro CHIBA, Kengo MIYAOKA, Ryohei SEKIGUCHI, Makoto DEUSHI, Hirotaka KAMAHORI, Tosiyuki NAKAEGAWA, Taichu Y. TANAKA, Takayuki TOKUHIRO, Yoshiaki SATO, Yasuhiro MATSUSHITA, Kazutoshi ONOGI Author information Yuki KOSAKA Numerical Prediction Development Center, Japan Meteorological Agency, Tsukuba, Japan Shinya KOBAYASHI Numerical Prediction Development Center, Japan Meteorological Agency, Tsukuba, Japan Yayoi HARADA https://orcid.org/0000-0003-4048-2350 Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan Chiaki KOBAYASHI Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan Hiroaki NAOE Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan Koichi YOSHIMOTO Japan Meteorological Agency, Tokyo, Japan Masashi HARADA Japan Meteorological Agency, Tokyo, Japan Naochika GOTO Japan Meteorological Agency, Tokyo, Japan Jotaro CHIBA Numerical Prediction Development Center, Japan Meteorological Agency, Tsukuba, Japan Kengo MIYAOKA Japan Meteorological Agency, Tokyo, Japan Ryohei SEKIGUCHI Japan Meteorological Agency, Tokyo, Japan Makoto DEUSHI Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan Hirotaka KAMAHORI Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan Tosiyuki NAKAEGAWA Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan Taichu Y. TANAKA Numerical Prediction Development Center, Japan Meteorological Agency, Tsukuba, Japan Takayuki TOKUHIRO Numerical Prediction Development Center, Japan Meteorological Agency, Tsukuba, Japan Yoshiaki SATO Japan Meteorological Agency, Tokyo, Japan Yasuhiro MATSUSHITA Japan Meteorological Agency, Tokyo, Japan Kazutoshi ONOGI Japan Meteorological Agency, Tokyo, Japan Corresponding author Keywords: reanalysis, data assimilation, numerical weather prediction JOURNAL OPEN ACCESS FULL-TEXT HTML 2024 Volume 102 Issue 1 Pages 49-109 DOI https://doi.org/10.2151/jmsj.2024-004 Browse “Advance online publication” version Details Published: 2024 Received: March 29, 2023 Released on J-STAGE: January 18, 2024 Final Form: October 12, 2023 Advance online publication: November 02, 2023 Revised: - Full-text HTML Download PDF (26478K) Download citation RIS (compatible with EndNote, Reference Manager, ProCite, RefWorks) BIB TEX (compatible with BibDesk, LaTeX) Text How to download citation Contact us Article overview Abstract References (166) Figures (51) Content from these authors Cited by (86) Share Abstract The Japan Meteorological Agency (JMA) has developed the third Japanese global atmospheric reanalysis, the Japanese Reanalysis for Three Quarters of a Century (JRA-3Q). The objective of JRA-3Q is to improve quality in terms of issues identified in the previous Japanese 55-year Reanalysis (JRA-55) and to extend the reanalysis period further into the past. JRA-3Q is based on the TL479 version of the JMA global Numerical Weather Prediction (NWP) system as of December 2018 and uses results of developments in the operational NWP system, boundary conditions, and forcing fields achieved at JMA since JRA-55. It covers the period from September 1947, when Typhoon Kathleen brought severe flood damage to Japan, and uses rescued historical observations to extend its analyses backwards in time about 10 years earlier than JRA-55. This paper describes the data assimilation system, forecast model, observations, boundary conditions, and forcing fields used to produce JRA-3Q as well as the basic characteristics of the JRA-3Q product. The initial quality evaluation revealed major improvements from JRA-55 in the global energy budget and representation of tropical cyclones (TCs). One of the major problems in JRA-55—global energy imbalance with excess upward net energy flux at the top of the atmosphere and at the surface—has been significantly reduced in JRA-3Q. Another problem—a trend of artificial weakening of TCs—has been resolved through the use of a method that generates TC bogus based on the JMA operational system. There remain several problems such that the volcanic-induced stratospheric warming is smaller than expected. This paper discusses the causes of such problems and possible solutions in future reanalyses. References (166) Related articles (0) Figures (51) Content from these authors Supplementary material (0) Result List () Cited by (86) ©The Author(s) 2024. This is an open access article published by the Meteorological Society of Japan under a Creative Commons Attribution 4.0 International (CC BY 4.0) license. https://creativecommons.org/licenses/by/4.0 Previous article Next article Favorites & Alerts Add to favorites Additional info alert Citation alert Authentication alert Related articles Recently viewed articles Announcements from publisher Most Accessed Articles in 2022 New issue is published online: JMJS, Vol.101 No.4 A page of Most Cited Articles is now on our site. Guidelines for Notes and Correspondence, JMSJ, are released. (13 Feb. 2019) The Guide for Authors is updated. (7 September 2018) http://jmsj.metsoc.jp/GuideforAuthors.pdf The length of the manuscripts should not exceed 18,000 words for an Article and 4,500 words for Notes and Correspondence (approximately 60 and 15 double-spaced pages formatted using the JMSJ Word template, respectively). The manuscript should be double spaced in 12 point type, and all pages and lines must be numbered consecutively. The word limit does not include the title page, abstract, acknowledgements, references, tables, or figure captions. Predecessor Journal of the Meteorological Society of Japan. Ser. I Share this page Edited and published by Meteorological Society of Japan Production services Meteorological Society of Japan Top Browse All titles All subject areas All publishers Search articles Search J-STAGE Data About J-STAGE Overview Services and features Public data Terms and Policy News and PR News Maintenance information Special contents Media resources Support User manuals Browser compatibility FAQ Contact Sitemap feedback Top Register with J-STAGE for free! Register Already have an account? Sign in here