The Japanese 55-year Reanalysis using conventional data only (JRA-55C)


GCMD Science Keywords
[Atmosphere ]

IDENTIFICATION INFORMATION

Name The Japanese 55-year Reanalysis using conventional data only (JRA-55C)
Abbreviation JRA-55C
Metadata Identifier JRA55_C20170313225052-DIAS20160706142617-en

CONTACT

CONTACT on DATASET

Name Climate Prediction Division, Global Environment and Marine Department, Japan Meteorological Agency
Organization Climate Prediction Division, Global Environment and Marine Department, Japan Meteorological Agency
Address 1-3-4 Otemachi, Chiyoda-ku, Tokyo, 100-8122, Japan
E-mail jra@met.kishou.go.jp

CONTACT on PROJECT

Data Integration and Analysis System

Name DIAS Office
Organization The Earth Observation Data Integration and Fusion Research Initiative (EDITORIA), The University of Tokyo
Address 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
E-mail dias-office@diasjp.net

DOCUMENT AUTHOR

Name Climate Prediction Division, Global Environment and Marine Department, Japan Meteorological Agency
Organization Climate Prediction Division, Global Environment and Marine Department, Japan Meteorological Agency
E-mail jra@met.kishou.go.jp

DATASET CREATOR

Name Climate Research Department, Meteorological Research Institute
Organization Climate Research Department, Meteorological Research Institute

DATE OF THIS DOCUMENT

2017-03-13

DATE OF DATASET

  • publication : 2014-10-01

DATASET OVERVIEW

Abstract

As a subset of the Japanese 55-year Reanalysis (JRA-55) project, the Meteorological Research Institute of the Japan Meteorological Agency is conducting a global atmospheric reanalysis that assimilates only conventional surface and upper air observations, with no use of satellite observations, using the same data assimilation system as the JRA-55. The project, named the JRA-55 Conventional (JRA-55C), aims to produce a more homogeneous dataset over a long period, unaffected by changes in historical satellite observing systems. The dataset is intended to be suitable for studies of climate change or multi-decadal variability. The reanalysis period of the JRA-55C is from 1958 to 2012. Note, however, that the data for the period from 1958 to Oct 1972 are exactly the same of JRA-55. We recommend to use together with the JRA-55 data in the period.

(A part of JRA-55C data included an error. We replaced the error data to the corrected data on 23 March 2016. The details are described at "Data Remarks".)

Topic Category(ISO19139)

  • climatologyMeteorologyAtmosphere

Temporal Extent

Begin Date 1972-11-01
End Date 2012-12-31

Geographic Bounding Box

North bound latitude 90
West bound longitude -180
Eastbound longitude 180
South bound latitude -90

Grid

Dimension Name Dimension Size (slice number of the dimension) Resolution Unit
()
()
()

Keywords

Keywords on Dataset

Keyword Type Keyword Keyword thesaurus Name
theme [Atmosphere ] GCMD_science
theme Aircraft, Balloons/Rockets, Earth Observation Satellites, In Situ Land-based Platforms, In Situ Ocean-based Platforms, Models > , Navigation Platforms GCMD_platform
theme Climate, Weather GEOSS

Keywords on Project

Data Integration and Analysis System
Keyword Type Keyword Keyword thesaurus Name
theme DIAS > Data Integration and Analysis System No_Dictionary

Online Resource

Distribution Information

name version specification
GRIB 1

DATA REMARKS

A part of JRA-55C data from Jan 2005 to Aug 2005 included an error. We replaced the error data to the corrected data on 23 March 2016. Please download the data again from DIAS with the updated versions.

The replaced are the following files.

(${mm}: 01,02,03,04,05,06,07,08.

${hh}: 00,03,06,09,12,15,18,21)

All files under

JRA-55C/Hist/Daily/fcst_column125/2005${mm}/

JRA-55C/Hist/Daily/fcst_phy2m125/2005${mm}/

JRA-55C/Hist/Daily/fcst_surf125/2005${mm}/

All files which begin in "fcst_p125_ciwc", "fcst_p125_clwc" and "fcst_p125_ozone" under

JRA-55C/Hist/Daily/fcst_p125/2005${mm}/

All files which are over in "2005${mm}" or ".idx" under

JRA-55C/Hist/Monthly/fcst_column125/

JRA-55C/Hist/Monthly/fcst_phy2m125/

JRA-55C/Hist/Monthly/fcst_surf125/

All files which begin in "fcst_p125_ciwc", "fcst_p125_clwc", "fcst_p125_ozone" and are over in "2005${mm}" or ".idx" under

JRA-55C/Hist/Monthly/fcst_p125/

All files which are over in "2005${mm}_${hh}" or ".idx" under

JRA-55C/Hist/Monthly_diurnal/fcst_column125/

JRA-55C/Hist/Monthly_diurnal/fcst_phy2m125/

JRA-55C/Hist/Monthly_diurnal/fcst_surf125/

All files which begin in "fcst_p125_ciwc", "fcst_p125_clwc", "fcst_p125_ozone" and are over in "2005${mm}_${hh}" or ".idx" under

JRA-55C/Hist/Monthly_diurnal/fcst_p125/

All files under

JRA-55C/Clim8110/Daily/fcst_column125/

JRA-55C/Clim8110/Daily/fcst_phy2m125/

JRA-55C/Clim8110/Daily/fcst_surf125/

All files which begin in "fcst_p125_ciwc", "fcst_p125_clwc" and "fcst_p125_ozone" under

JRA-55C/Clim8110/Daily/fcst_p125/

All files under

JRA-55C/Clim8110/Monthly/fcst_column125/

JRA-55C/Clim8110/Monthly/fcst_phy2m125/

JRA-55C/Clim8110/Monthly/fcst_surf125/

All files which begin in "fcst_p125_ciwc", "fcst_p125_clwc" and "fcst_p125_ozone" under

JRA-55C/Clim8110/Monthly/fcst_p125/

USE CONSTRAINTS

Data Policy by Data Provider

(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.

(4) Users should provide JMA with a copy of their scientific or technical papers, publications, press releases or other communications regarding the Products.

Disclaimer

Please note that although JMA has paid the closest attention to produce the Products, JMA assumes no responsibility regarding the reliability of the Products. JMA is not responsible to you for any damage that may be caused by the use of the Products on this site.

Data Policy for Project

Data Integration and Analysis System

1. With regard to Data policy, if there is any data policy indicated by the data provider, that policy always has priority over this DIAS data policy.

2. DIAS data sets are to be used only for scientific research or educational purposes [*1].

3. Any modification or change of the original DIAS data sets is prohibited.

4. Any Re-export or transfer of the original data sets to a third party is prohibited.

5. The origin of DIAS data being used for any publication of scientific results must be acknowledged and referenced in the publication, with the “quotation” given below as an acknowledgement.

6. Whenever DIAS data sets are used for publication of scientific results, the author(s) shall send a copy of the respective publication, preferably in an electronic form or in a separate printed version, to the DIAS CONTACTS as indicated below.

E-mail: dias-office@diasjp.net

Earth Observation Data Integration & Fusion Research Initiative (EDITORIA),

The University of Tokyo.

4-6-1 Komaba, Meguro-ku, Tokyo 153-8505 JAPAN

[*1] Data sets whose commercial usage are allowed under the data policy by data provider will be also allowed to be used commercially as DIAS data sets, after ongoing preparation works have been completed. Please contact [R-dias3@restec.or.jp] for more details.

Disclaimer for Project

Data Integration and Analysis System

1. DIAS data provider is not liable for any losses or any damage when DIAS data sets are used.

2. DIAS data and related information are subject to change without any prior notice.

3. DIAS data sets provided are not supported for any additional processing or analysis.

ACKNOWLEDGEMENT

Dataset Acknowledgement

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 datasets used for this study are provided from the Japanese 55-year Reanalysis (JRA-55) project carried out by the Japan Meteorological Agency (JMA).

Project Acknowledgement

Data Integration and Analysis System

Whenever DIAS data sets are used for any academic presentations, and any publication of scientific results, the author(s) shall specify the following acknowledgement and if the data provider has their own acknowledgement quotation, the author(s) shall use both acknowledgements.

"The DIAS data set is archived and provided under the framework of the Data Integration and Analysis System (DIAS,DIAS-P), through the National Key Technology, Marine Earth Observation Exploration System."

REFERENCES

(1) 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.

(2) 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. 93, 5-48, doi: 10.2151/jmsj.2015-001.


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