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Near Real-Time Japanese Reanalysis for Three Quarters of a Century (JRA-3Q)

| DOI: 10.5065/E3QQ-0F24

JMA is currently conducting the Japanese Reanalysis for Three Quarters of a Century (JRA-3Q), which covers the period from September 1947 onward to extend the current period of data coverage and improve the quality of long-term reanalysis. The project involves a sophisticated data assimilation system (based on the operational set-up as of December 2018) incorporating development results from the operational NWP system and sea surface temperature analysis achieved since JRA-55 (based on the operational set-up as of December 2009). New datasets of past observations are also assimilated, including rescued historical observations and reprocessed satellite data supplied by meteorological and satellite centers worldwide. Many of the deficiencies of JRA-55 are alleviated in JRA-3Q, providing a high-quality homogeneous reanalysis dataset that covers the previous 75 years.

Temporal Range:
2023-12-09 00:00 +0000 to 2024-07-19 00:00 +0000 (Entire dataset) Period details by dataset product
Upper Air Temperature
GRIB2 parameter table: HTML | XML
Vertical Levels:
See the detailed metadata for level information.
Data Types:
Spatial Coverage:
Longitude Range: Westernmost=180W Easternmost=180E
Latitude Range: Southernmost=90S Northernmost=90N Detailed coverage information
Data Contributors:
Japan Meteorological Agency, Japan
Kosaka, Y., S. Kobayashi, Y. Harada, C. Kobayashi, H. Naoe, K. Yoshimoto, M. Harada, N. Goto, J. Chiba, K. Miyaoka, R. Sekiguchi, M. Deushi, H. Kamahori, T. Nakaegawa, T. Y. Tanaka, T. Tokuhiro, Y. Sato, Y. Matsushita, and K. Onogi, 2024: The JRA-3Q Reanalysis J. Meteor. Soc. Japan, 102, 1-168 (DOI: 10.2151/jmsj.2024-004).

Total Volume:
2.28 TB (Entire dataset) Volume details by dataset product
Data Formats:
Related RDA Datasets:
JRA-55: Japanese 55-year Reanalysis, Daily 3-Hourly and 6-Hourly Data
JRA-55: Japanese 55-year Reanalysis, Near Real-Time Data
Japanese Reanalysis for Three Quarters of a Century (JRA-3Q)
Near real-time monthly mean Japanese Reanalysis for Three Quarters of a Century (JRA-3Q)
More Details:
View a more detailed summary of the data, including specific date ranges and locations by parameter
Metadata Record:
Citation counts are compiled through information provided by publicly-accessible APIs according to the guidelines developed through the project. If journals do not provide citation information to these publicly-accessible services, then this citation information will not be included in RDA citation counts. Additionally citations that include dataset DOIs are the only types included in these counts, so legacy citations without DOIs, references found in publication acknowledgements, or references to a related publication that describes a dataset will not be included in these counts.