Near Real-Time Japanese Reanalysis for Three Quarters of a Century (JRA-3Q)
d640001
| DOI: 10.5065/E3QQ-0F24
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:
2023-12-09 00:00 +0000 to 2024-12-19 00:00 +0000
(Entire dataset)
Period details by dataset product
Period details by dataset product
2023-12-09 00:00 +0000 to 2024-12-18 18:00 +0000 (JRA-3Q near real-time isentropic analysis fields (anl_isentrop) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-17 18:00 +0000 (JRA-3Q near real-time isentropic analysis fields (anl_isentrop125) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-18 18:00 +0000 (JRA-3Q near real-time isobaric analysis fields (anl_p) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-17 18:00 +0000 (JRA-3Q near real-time isobaric analysis fields (anl_p125) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-18 00:00 +0000 (JRA-3Q near real-time isobaric average diagnostic fields (fcst_phyp125) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-18 21:00 +0000 (JRA-3Q near real-time isobaric forecast fields (fcst_p) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-17 21:00 +0000 (JRA-3Q near real-time isobaric forecast fields (fcst_p125) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-18 18:00 +0000 (JRA-3Q near real-time land surface analysis fields (anl_land) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-17 18:00 +0000 (JRA-3Q near real-time land surface analysis fields (anl_land125) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-18 00:00 +0000 (JRA-3Q near real-time land surface average diagnostic fields (fcst_phyland) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-18 00:00 +0000 (JRA-3Q near real-time land surface average diagnostic fields (fcst_phyland125) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-18 23:00 +0000 (JRA-3Q near real-time land surface forecast fields (fcst_land) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-17 23:00 +0000 (JRA-3Q near real-time land surface forecast fields (fcst_land125) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-18 18:00 +0000 (JRA-3Q near real-time model level analysis fields (anl_mdl) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-18 00:00 +0000 (JRA-3Q near real-time model level average diagnostic fields (fcst_phy3m) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-18 21:00 +0000 (JRA-3Q near real-time model level forecast fields (fcst_mdl) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-18 23:00 +0000 (JRA-3Q near real-time ocean surface boundary conditions (bnd_ocean) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-17 23:00 +0000 (JRA-3Q near real-time ocean surface boundary conditions (bnd_ocean125) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-18 18:00 +0000 (JRA-3Q near real-time snow analysis fields (anl_snwlev) [GRIB2])
2023-12-09 18:00 +0000 to 2024-12-18 18:00 +0000 (JRA-3Q near real-time snow depth analysis fields (anl_snow) [GRIB2])
2023-12-09 18:00 +0000 to 2024-12-17 18:00 +0000 (JRA-3Q near real-time snow depth analysis fields (anl_snow125) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-17 23:00 +0000 (JRA-3Q near real-time snow forecast fields (fcst_snowlev) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-18 18:00 +0000 (JRA-3Q near real-time surface analysis fields (anl_surf) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-17 18:00 +0000 (JRA-3Q near real-time surface analysis fields (anl_surf125) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-19 00:00 +0000 (JRA-3Q near real-time two-dimensional average diagnostic fields (fcst_phy2m) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-18 00:00 +0000 (JRA-3Q near real-time two-dimensional average diagnostic fields (fcst_phy2m125) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-18 00:00 +0000 (JRA-3Q near real-time two-dimensional extreme fields (minmax_surf) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-17 23:00 +0000 (JRA-3Q near real-time two-dimensional instantaneous diagnostic fields (fcst_surf) [GRIB2])
2023-12-09 00:00 +0000 to 2024-12-17 23:00 +0000 (JRA-3Q near real-time two-dimensional instantaneous diagnostic fields (fcst_surf125) [GRIB2])
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 | 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 |
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 -360° x ~0.375° from 0E to 720E and 89.713N to 89.713S (reduced n240 Longitude/Gaussian 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 -360° x ~0.375° from 0E to 720E and 89.713N to 89.713S (reduced n240 Longitude/Gaussian 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, 1-168 (DOI: 10.2151/jmsj.2024-004).
Reference to JRA-3Q data in scientific or technical papers should be cited to this JRA-3Q comprehensive report.
Total Volume:
3.61 TB
(Entire dataset)
Volume details by dataset product
Volume details by dataset product
JRA-3Q near real-time land surface analysis fields (anl_land) [GRIB2]: 7.7 GB
JRA-3Q near real-time surface geopotential (ll125_surf) [GRIB2]: 0.08 MB
JRA-3Q near real-time snow depth analysis fields (anl_snow125) [GRIB2]: 6.42 MB
JRA-3Q near real-time surface analysis fields (anl_surf125) [GRIB2]: 761.63 MB
JRA-3Q near real-time land surface analysis fields (anl_land125) [GRIB2]: 882.12 MB
JRA-3Q near real-time land surface information (ll125_land) [GRIB2]: 0.08 MB
JRA-3Q near real-time model level average diagnostic fields (fcst_phy3m) [GRIB2]: 634.86 GB
JRA-3Q near real-time isentropic analysis fields (anl_isentrop125) [GRIB2]: 18.36 GB
JRA-3Q near real-time isobaric analysis fields (anl_p125) [GRIB2]: 33.2 GB
JRA-3Q near real-time isobaric forecast fields (fcst_p125) [GRIB2]: 78.66 GB
JRA-3Q near real-time isobaric average diagnostic fields (fcst_phyp125) [GRIB2]: 43.46 GB
JRA-3Q near real-time isentropic analysis fields (anl_isentrop) [GRIB2]: 109.61 GB
JRA-3Q near real-time isobaric analysis fields (anl_p) [GRIB2]: 208.33 GB
JRA-3Q near real-time model level forecast fields (fcst_mdl) [GRIB2]: 1.25 TB
JRA-3Q near real-time isobaric forecast fields (fcst_p) [GRIB2]: 489.9 GB
JRA-3Q near real-time model level analysis fields (anl_mdl) [GRIB2]: 394.58 GB
JRA-3Q near real-time two-dimensional average diagnostic fields (fcst_phy2m) [GRIB2]: 108.78 GB
JRA-3Q near real-time land surface average diagnostic fields (fcst_phyland) [GRIB2]: 6.39 GB
JRA-3Q near real-time two-dimensional instantaneous diagnostic fields (fcst_surf125) [GRIB2]: 8.16 GB
JRA-3Q near real-time land surface information (tl479_land) [GRIB2]: 1.37 MB
JRA-3Q near real-time surface geopotential (tl479_surf) [GRIB2]: 0.69 MB
JRA-3Q near real-time snow analysis fields (anl_snwlev) [GRIB2]: 3.43 GB
JRA-3Q near real-time land surface forecast fields (fcst_land125) [GRIB2]: 5.6 GB
JRA-3Q near real-time snow forecast fields (fcst_snowlev) [GRIB2]: 20.53 GB
JRA-3Q near real-time land surface forecast fields (fcst_land) [GRIB2]: 49.37 GB
JRA-3Q near real-time snow depth analysis fields (anl_snow) [GRIB2]: 46.41 MB
JRA-3Q near real-time surface analysis fields (anl_surf) [GRIB2]: 8.1 GB
JRA-3Q near real-time ocean surface boundary conditions (bnd_ocean) [GRIB2]: 14.41 GB
JRA-3Q near real-time two-dimensional extreme fields (minmax_surf) [GRIB2]: 14.11 GB
JRA-3Q near real-time ocean surface boundary conditions (bnd_ocean125) [GRIB2]: 1.54 GB
JRA-3Q near real-time two-dimensional average diagnostic fields (fcst_phy2m125) [GRIB2]: 9.15 GB
JRA-3Q near real-time land surface average diagnostic fields (fcst_phyland125) [GRIB2]: 680.42 MB
JRA-3Q near real-time two-dimensional instantaneous diagnostic fields (fcst_surf) [GRIB2]: 85.53 GB
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)
-
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)
-
Japanese Reanalysis for Three Quarters of a Century (JRA-3Q) Diurnal Statistics
-
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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