Japanese Reanalysis for Three Quarters of a Century (JRA-3Q)
d640000
| DOI: 10.5065/AVTZ-1H78
Abstract:
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:
1947-09-01 00:00 +0000 to 2024-10-31 23:00 +0000
(Entire dataset)
Period details by dataset product
Period details by dataset product
1947-09-01 00:00 +0000 (JRA-3Q 1.25 degree invariant land surface information (ll125_land) [netCDF4])
1947-09-01 00:00 +0000 (JRA-3Q 1.25 degree invariant surface geopotential (ll125_surf) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 18:00 +0000 (JRA-3Q 1.25 degree isentropic analysis fields (anl_isentrop125) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 18:00 +0000 (JRA-3Q 1.25 degree isobaric analysis fields (anl_p125) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 18:00 +0000 (JRA-3Q 1.25 degree isobaric average diagnostic fields (fcst_phyp125) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 21:00 +0000 (JRA-3Q 1.25 degree isobaric forecast fields (fcst_p125) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 18:00 +0000 (JRA-3Q 1.25 degree land surface analysis fields (anl_land125) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 23:00 +0000 (JRA-3Q 1.25 degree land surface average diagnostic fields (fcst_phyland125) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 23:00 +0000 (JRA-3Q 1.25 degree land surface forecast fields (fcst_land125) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 23:00 +0000 (JRA-3Q 1.25 degree ocean surface boundary conditions (bnd_ocean125) [netCDF4])
1947-09-01 18:00 +0000 to 2024-10-31 18:00 +0000 (JRA-3Q 1.25 degree snow depth analysis fields (anl_snow125) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 18:00 +0000 (JRA-3Q 1.25 degree surface analysis fields (anl_surf125) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 23:00 +0000 (JRA-3Q 1.25 degree two-dimensional average diagnostic fields (fcst_phy2m125) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 23:00 +0000 (JRA-3Q 1.25 degree two-dimensional instantaneous diagnostic fields (fcst_surf125) [netCDF4])
1947-09-01 00:00 +0000 (JRA-3Q invariant land surface information (tl479_land) [netCDF4])
1947-09-01 00:00 +0000 (JRA-3Q invariant surface geopotential (tl479_surf) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 18:00 +0000 (JRA-3Q isentropic analysis fields (anl_isentrop) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 18:00 +0000 (JRA-3Q isobaric analysis fields (anl_p) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 21:00 +0000 (JRA-3Q isobaric forecast fields (fcst_p) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 18:00 +0000 (JRA-3Q land surface analysis fields (anl_land) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 23:00 +0000 (JRA-3Q land surface average diagnostic fields (fcst_phyland) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 23:00 +0000 (JRA-3Q land surface forecast fields (fcst_land) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 18:00 +0000 (JRA-3Q model level analysis fields (anl_mdl) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 18:00 +0000 (JRA-3Q model level average diagnostic fields (fcst_phy3m) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 21:00 +0000 (JRA-3Q model level forecast fields (fcst_mdl) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 23:00 +0000 (JRA-3Q ocean surface boundary conditions (bnd_ocean) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 18:00 +0000 (JRA-3Q snow analysis fields (anl_snwlev) [netCDF4])
1947-09-01 18:00 +0000 to 2024-10-31 18:00 +0000 (JRA-3Q snow depth analysis fields (anl_snow) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 23:00 +0000 (JRA-3Q snow forecast fields (fcst_snowlev) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 18:00 +0000 (JRA-3Q surface analysis fields (anl_surf) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 23:00 +0000 (JRA-3Q two-dimensional average diagnostic fields (fcst_phy2m) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 23:00 +0000 (JRA-3Q two-dimensional extreme fields (minmax_surf) [netCDF4])
1947-09-01 00:00 +0000 to 2024-10-31 23:00 +0000 (JRA-3Q two-dimensional instantaneous diagnostic fields (fcst_surf) [netCDF4])
Updates:
Monthly
Variables:
| Atmospheric Heating | Atmospheric Ozone | Atmospheric Stability | Brightness Temperature |
| Canopy Characteristics | Cloud Amount | Cloud Frequency | Cloud Liquid Water/Ice |
| Convergence | Dew Point Temperature | Evaporation | Evapotranspiration |
| Geopotential Height | Gravity Wave | Humidity | Hydrostatic Pressure |
| Ice Extent | Ice Fraction | Land/Ocean/Ice Mask | Land Surface Temperature |
| Land Use/Land Cover Classification | Latent Heat Flux | Longwave Radiation | Maximum/Minimum Temperature |
| Potential Temperature | Potential Vorticity | Precipitation Amount | Precipitation Rate |
| Runoff Rate | Sea Level Pressure | Sensible Heat Flux | Shortwave Radiation |
| Snow Depth | Snow Water Equivalent | Soil Moisture/Water Content | Soil Temperature |
| Streamfunctions | Surface Pressure | Surface Roughness | Surface Temperature |
| Surface Winds | Total Precipitable Water | Upper Air Temperature | Upper Level Winds |
| Vegetation Species | Vertical Wind Velocity/Speed | Vorticity | Water Vapor |
| Wind Stress | Wind Stress |
Vertical Levels:
See the detailed metadata for level information.
Data Types:
Grid
Spatial Coverage:
Longitude Range: Westernmost=180W Easternmost=180E
Latitude Range: Southernmost=90S Northernmost=90N Detailed coverage information Detailed coverage information 0.375° x 0.375° from 0E to 359.625E and 89.713N to 89.713S (960 x 480 Longitude/Latitude) 1.25° x 1.25° from 0E to 358.75E and 90N to 90S (288 x 145 Longitude/Latitude)
Latitude Range: Southernmost=90S Northernmost=90N Detailed coverage information Detailed coverage information 0.375° x 0.375° from 0E to 359.625E and 89.713N to 89.713S (960 x 480 Longitude/Latitude) 1.25° x 1.25° from 0E to 358.75E and 90N to 90S (288 x 145 Longitude/Latitude)
Data Contributors:
JP/JMA
Japan Meteorological Agency, Japan
Related Resources:
Publications:
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, 49-109 (DOI: 10.2151/jmsj.2024-004).
Total Volume:
465.28 TB
(Entire dataset)
Volume details by dataset product
Volume details by dataset product
JRA-3Q 1.25 degree isobaric forecast fields (fcst_p125) [netCDF4]: 9.92 TB
JRA-3Q 1.25 degree two-dimensional average diagnostic fields (fcst_phy2m125) [netCDF4]: 849.46 GB
JRA-3Q 1.25 degree land surface average diagnostic fields (fcst_phyland125) [netCDF4]: 55.6 GB
JRA-3Q two-dimensional extreme fields (minmax_surf) [netCDF4]: 1.6 TB
JRA-3Q model level average diagnostic fields (fcst_phy3m) [netCDF4]: 87.97 TB
JRA-3Q land surface analysis fields (anl_land) [netCDF4]: 621.72 GB
JRA-3Q two-dimensional average diagnostic fields (fcst_phy2m) [netCDF4]: 10.69 TB
JRA-3Q 1.25 degree isobaric average diagnostic fields (fcst_phyp125) [netCDF4]: 4.5 TB
JRA-3Q 1.25 degree snow depth analysis fields (anl_snow125) [netCDF4]: 567.85 MB
JRA-3Q isobaric forecast fields (fcst_p) [netCDF4]: 76.68 TB
JRA-3Q 1.25 degree two-dimensional instantaneous diagnostic fields (fcst_surf125) [netCDF4]: 756.41 GB
JRA-3Q 1.25 degree surface analysis fields (anl_surf125) [netCDF4]: 75.54 GB
JRA-3Q 1.25 degree land surface analysis fields (anl_land125) [netCDF4]: 67.15 GB
JRA-3Q model level analysis fields (anl_mdl) [netCDF4]: 53.52 TB
JRA-3Q 1.25 degree isentropic analysis fields (anl_isentrop125) [netCDF4]: 2.04 TB
JRA-3Q 1.25 degree isobaric analysis fields (anl_p125) [netCDF4]: 4.22 TB
JRA-3Q land surface average diagnostic fields (fcst_phyland) [netCDF4]: 373.74 GB
JRA-3Q isentropic analysis fields (anl_isentrop) [netCDF4]: 17.7 TB
JRA-3Q isobaric analysis fields (anl_p) [netCDF4]: 34.47 TB
JRA-3Q land surface forecast fields (fcst_land) [netCDF4]: 3.96 TB
JRA-3Q model level forecast fields (fcst_mdl) [netCDF4]: 141.67 TB
JRA-3Q 1.25 degree land surface forecast fields (fcst_land125) [netCDF4]: 420.79 GB
JRA-3Q two-dimensional instantaneous diagnostic fields (fcst_surf) [netCDF4]: 8.95 TB
JRA-3Q snow depth analysis fields (anl_snow) [netCDF4]: 4.32 GB
JRA-3Q snow analysis fields (anl_snwlev) [netCDF4]: 258.37 GB
JRA-3Q surface analysis fields (anl_surf) [netCDF4]: 934.67 GB
JRA-3Q ocean surface boundary conditions (bnd_ocean) [netCDF4]: 1.31 TB
JRA-3Q snow forecast fields (fcst_snowlev) [netCDF4]: 1.54 TB
JRA-3Q 1.25 degree ocean surface boundary conditions (bnd_ocean125) [netCDF4]: 106.01 GB
JRA-3Q 1.25 degree invariant land surface information (ll125_land) [netCDF4]: 0.1 MB
JRA-3Q 1.25 degree invariant surface geopotential (ll125_surf) [netCDF4]: 0.15 MB
JRA-3Q invariant land surface information (tl479_land) [netCDF4]: 0.31 MB
JRA-3Q invariant surface geopotential (tl479_surf) [netCDF4]: 0.89 MB
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
-
ERA5 Reanalysis (0.25 Degree Latitude-Longitude Grid)
-
Near Real-Time Japanese Reanalysis for Three Quarters of a Century (JRA-3Q)
-
Japanese Reanalysis for Three Quarters of a Century (JRA-3Q) Monthly Statistics
-
Near real-time monthly mean Japanese Reanalysis for Three Quarters of a Century (JRA-3Q)
-
Near real-time monthly diurnal Japanese Reanalysis for Three Quarters of a Century (JRA-3Q)
-
Japanese Reanalysis for Three Quarters of a Century - COBE (JRA-3Q-COBE)
More Details:
View a more detailed summary of the data, including specific date ranges and locations by parameter
Metadata Record:
Data License:
This work is licensed under a Creative Commons Attribution Non Commercial Share Alike 4.0 International License.
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