| Name | The Japanese 55-year Reanalysis using conventional data only with high resolution SST(JRA-55CHS) |
| Abbreviation | JRA-55CHS |
| Metadata Identifier | JRA55_CHS20230727100317-DIAS20221121113753-en |
| Name | Numerical Prediction Division, Information Infrastructure Department |
|---|---|
| Organization | Japan Meteorological Agency |
| Address | 3-6-9 Toranomon, Minato City, Tokyo, 105-8431, Japan |
| jra@met.kishou.go.jp |
| Name | Numerical Prediction Division, Information Infrastructure Department |
|---|---|
| Organization | Japan Meteorological Agency |
The Meteorological Research Institute of the Japan Meteorological Agency, under support of the Japanese “Hotspot project” (Nakamura et al. 2015), is constructing an additional product of the Japanese 55-year Reanalysis (JRA-55) family. The product, named “JRA-55CHS”, utilizes high-resolution (quarter-degree) sea-surface temperature (SST) as lower-boundary condition with the same data assimilation system as the JRA-55 Conventional (JRA-55C), into which no satellite data is assimilated (Masunaga et al. 2018). The dataset is intended to be suitable for diagnosing small-scale oceanic influence (such as the one from the western boundary currents) on atmosphere, which is not necessarily well represented in JRA-55 and JRA-55CHS. The reanalysis period of the JRA-55CHS is from 1985 through 2012. We recommend to use together with the JRA-55C data.
| North bound latitude | 90 |
| West bound longitude | -180 |
| Eastbound longitude | 180 |
| South bound latitude | -90 |
| Dimension Name | Dimension Size (slice number of the dimension) | Resolution Unit |
|---|---|---|
| row | 288 | 1.25 (deg) |
| column | 145 | 1.25 (deg) |
| vertical | 37 | 1-50 (hPa) |
| Keyword Type | Keyword | Keyword thesaurus Name |
|---|---|---|
| theme | Atmosphere | GCMD_science |
| theme | Balloons/Rockets, In Situ Land-based Platforms, In Situ Ocean-based Platforms, Models | GCMD_platform |
| theme | Climate, Weather | GEOSS |
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JRA project website : https://jra.kishou.go.jp/
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JRA-55 Product Users Handbook (in English) : https://jra.kishou.go.jp/JRA-55/index_en.html#manual
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JRA-55 Product Users Handbook (in Japanese) : https://jra.kishou.go.jp/JRA-55/index_ja.html#manual
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Quality Issues (in English) : https://jra.kishou.go.jp/JRA-55/index_en.html#quality
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Quality Issues (in Japanese) : https://jra.kishou.go.jp/JRA-55/index_ja.html#quality
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File download : https://data.diasjp.net/dl/storages/filelist/dataset:592
(1) Users should provide user information including name, affiliation, e-mail address.
(2) Users should not distribute the Products to any third party without JMA's prior consent. Use of the Products for any commercial purposes is also prohibited.
(3) The source of the Products should be duly acknowledged in scientific or technical papers, publications, press releases or other communications regarding the Products.
In addition, the following paper must be cited in an appropriate manner:
Masunaga, R., H. Nakamura, H. Kamahori, K. Onogi, and S. Okajima, 2018: JRA-55CHS: An atmospheric reanalysis produced with high-resolution SST. SOLA, 14, doi:10.2151/sola.2018-002.
(4) Users should provide JMA with a copy of their scientific or technical papers, publications, press releases or other communications regarding the Products.
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The source of the Products should be duly acknowledged in scientific or technical papers, publications, press releases or other communications regarding the Products.
Example:
The dataset used for this study are provided from the Japanese 55-year Reanalysis (JRA-55) project carried out by the Japan Meteorological Agency (JMA).
If you plan to use this dataset for a conference presentation, paper, journal article, or report etc., please include acknowledgments referred to following examples. If the data provider describes examples of acknowledgments, include them as well.
" In this study, [Name of Dataset] provided by [Name of Data Provider] was utilized. This dataset was also collected and provided under the Data Integration and Analysis System (DIAS), which was developed and operated by a project supported by the Ministry of Education, Culture, Sports, Science and Technology. "
(1) Masunaga, R., H. Nakamura, H. Kamahori, K. Onogi, and S. Okajima, 2018: JRA-55CHS: An atmospheric reanalysis produced with high-resolution SST. SOLA, 14, 6−13, doi:10.2151/sola.2018-002.
(2) Nakamura, H., A. Isobe, S. Minobe, H. Mitsudera, M. Nonaka, and T. Suga, 2015: “Hot Spots” in the climate system – new developments in the extratropical ocean-atmosphere interaction research: A short review and an introduction. J. Oceanogr., 71, 463−467, doi:10.1007/s10872-015-0321-5.
(3) Kobayashi, S., Y. Ota, Y. Harada, A. Ebita, M. Moriya, H. Onoda, K. Onogi, H. Kamahori, C. Kobayashi, H. Endo, K. Miyaoka, and K. Takahashi , 2015: The JRA-55 Reanalysis: General specifications and basic characteristics. J. Meteor. Soc. Japan, 93, 5-48, doi:10.2151/jmsj.2015-001.
(4) Kobayashi, C., H. Endo, Y. Ota, S. Kobayashi, H. Onoda, Y. Harada, K. Onogi, and H. Kamahori, 2014: Preliminary results of the JRA-55C, an atmospheric reanalysis assimilating conventional observations only. SOLA, 10, 78-82, doi:10.2151/sola.2014-016.