Difference between revisions of "JRA55"
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− | ===<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">License</span>=== | + | <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">The Japan Meteorological Agency (JMA) conducted JRA-55, the second Japanese global atmospheric reanalysis project. It covers 55 years, extending back to 1958, coinciding with the establishment of the global radiosonde observing system. Compared to its predecessor, JRA-25, JRA-55 is based on a new data assimilation and prediction system (DA) that improves many deficiencies found in the first Japanese reanalysis. These improvements have come about by implementing higher spatial resolution (TL319L60), a new radiation scheme, four-dimensional variational data assimilation (4D-Var) with Variational Bias Correction (VarBC) for satellite radiances, and introduction of greenhouse gases with time varying concentrations. The entire JRA-55 production was completed in 2013, and thereafter will be continued on a real time basis.</span> <span style="font-family: Arial,Helvetica,sans-serif;">(This information was obtained from the NCAR website [http://rda.ucar.edu/datasets/ds628.0/ http://rda.ucar.edu/datasets/ds628.0/])</span> |
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+ | === '''<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">License</span>''' === | ||
<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">You need to register by filling the [http://jra.kishou.go.jp/comm/application_en.html | JRA-55 project application form] to use this dataset. A copy of their agreement is available here as [[:File:Application_JRA_Data_Access.pdf]].</span> | <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">You need to register by filling the [http://jra.kishou.go.jp/comm/application_en.html | JRA-55 project application form] to use this dataset. A copy of their agreement is available here as [[:File:Application_JRA_Data_Access.pdf]].</span> | ||
− | <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">More information, the JRA55 user manuals for pressure and model levels and quality issues with the data are listed both in the [http://jra.kishou.go.jp/JRA-55/index_en.html#about | JRA-55 project website]</span> | + | <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">More information, the JRA55 user manuals for pressure and model levels and quality issues with the data are listed both in the [http://jra.kishou.go.jp/JRA-55/index_en.html#about | JRA-55 project website]</span> <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">and the NCAR [https://climatedataguide.ucar.edu/climate-data/jra-55 | Climate Data Guide] and [http://rda.ucar.edu/#!lfd?nb=y&b=proj&v=JMA%20Japanese%2055-year%20Reanalysis | JRA-55 dataset webpages]</span> |
− | <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">and the NCAR [https://climatedataguide.ucar.edu/climate-data/jra-55 | Climate Data Guide] and [http://rda.ucar.edu/#!lfd?nb=y&b=proj&v=JMA%20Japanese%2055-year%20Reanalysis | JRA-55 dataset webpages]</span> | ||
− | ===<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">JRA55 on raijin</span>=== | + | === '''<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">JRA55 on raijin</span>''' === |
− | ====''<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">Getting access:</span>''==== | + | |
− | <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">This dataset is part of the climate re-analysis collection, which is stored on raijin in the climate re-analysis collection, which is a collaboration between BoM, CSIRO and ARCCSS.</span> | + | ==== ''<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">Getting access:</span>'' ==== |
− | <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">To access the data you need to be part of '''rr7 group, request access via [https://my.nci.org.au | my.nci.org.au]''' </span> | + | |
+ | <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">This dataset is part of the climate re-analysis collection, which is stored on raijin in the climate re-analysis collection, which is a collaboration between BoM, CSIRO and ARCCSS.</span> <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">To access the data you need to be part of '''rr7 group, request access via [https://my.nci.org.au | my.nci.org.au]'''</span> | ||
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<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">Data is located in</span> | <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">Data is located in</span> | ||
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− | * <span style=" | + | * |
− | + | <span style="font-size: 130%;">pressure levels: /g/data1/rr7/JRA55/6hr/atmos/<varname>/v1/<filenames></span> | |
− | <span style=" | + | * |
− | + | <span style="font-size: 130%;">model levels: /g/data1/rr7/JRA55/6hr/atmos/reg-tl319/<varname>/v1/<filenames></span> | |
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− | <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;"> | + | |
+ | <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">Filenames are:</span> <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;"><var>_<mip>_JRA55_<grid>_<YYYYMMDDHH-YYYMMDDHH>.nc</var></span> <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;"><grid> information is currently present only for model level data and it is "reg-tl319"</span> <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;"><mip> is 6hrPlev and 6hrLev for pressure and model levels respectively</span> | ||
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+ | ==== <span style="font-family:Arial,Helvetica,sans-serif;">'''List of variables'''</span> ==== | ||
<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">Currently available variables on model levels are</span> | <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">Currently available variables on model levels are</span> | ||
− | * <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">ta - atmospheric temperature</span> | + | |
− | * <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">ua - eastward wind component</span> | + | *<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">ta - atmospheric temperature</span> |
− | * <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">va - northward wind component</span> | + | *<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">ua - eastward wind component</span> |
− | * <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">hus - specific humidity</span> | + | *<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">va - northward wind component</span> |
− | * <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">zg - geopotential</span> | + | *<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">hus - specific humidity</span> |
− | * <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">ps - surface air pressure</span> | + | *<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">zg - geopotential</span> |
+ | *<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">ps - surface air pressure</span> | ||
<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">Currently available variables on pressure levels are</span> | <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">Currently available variables on pressure levels are</span> | ||
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− | ===<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">Download & conversion process</span>=== | + | *<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">tas- surface atmospheric temperature</span> |
+ | *<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">uas - surface eastward wind component</span> | ||
+ | *<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">vas - surface northward wind component</span> | ||
+ | *<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">hurs - surface relative humidity</span> | ||
+ | *<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">huss - surface specific humidity</span> | ||
+ | *<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">zg - geopotential</span> | ||
+ | *<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">ps - surface air pressure</span> | ||
+ | *<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">psl - air pressure at sea level</span> | ||
+ | *<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">dptas - Near-Surface Dew Point Depression</span> | ||
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+ | ==== '''<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">Download & conversion process</span>''' ==== | ||
+ | |||
<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">We downloaded the model analysis level from the NCAR website and the pressure level data from the JMA Data Dissemination System</span> | <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">We downloaded the model analysis level from the NCAR website and the pressure level data from the JMA Data Dissemination System</span> | ||
− | ===<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">Feedback</span>=== | + | ==== '''<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">Feedback</span>''' ==== |
+ | |||
+ | <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">You can add comment on this collection directly here or on the dedicated [https://opus.nci.org.au/display/CMIP/Observational+and+Reanalysis+Data | Observational and Reanalysis Data page] on NCI confluence</span> <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">For questions use the [https://opus.nci.org.au/display/CC/questions/all | Climate Community confluence questions] .</span> | ||
− | + | [[Category:Dataset]] | |
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Revision as of 00:47, 18 March 2019
The Japan Meteorological Agency (JMA) conducted JRA-55, the second Japanese global atmospheric reanalysis project. It covers 55 years, extending back to 1958, coinciding with the establishment of the global radiosonde observing system. Compared to its predecessor, JRA-25, JRA-55 is based on a new data assimilation and prediction system (DA) that improves many deficiencies found in the first Japanese reanalysis. These improvements have come about by implementing higher spatial resolution (TL319L60), a new radiation scheme, four-dimensional variational data assimilation (4D-Var) with Variational Bias Correction (VarBC) for satellite radiances, and introduction of greenhouse gases with time varying concentrations. The entire JRA-55 production was completed in 2013, and thereafter will be continued on a real time basis. (This information was obtained from the NCAR website http://rda.ucar.edu/datasets/ds628.0/)
Contents
License
You need to register by filling the | JRA-55 project application form to use this dataset. A copy of their agreement is available here as File:Application_JRA_Data_Access.pdf.
More information, the JRA55 user manuals for pressure and model levels and quality issues with the data are listed both in the | JRA-55 project website and the NCAR | Climate Data Guide and | JRA-55 dataset webpages
JRA55 on raijin
Getting access:
This dataset is part of the climate re-analysis collection, which is stored on raijin in the climate re-analysis collection, which is a collaboration between BoM, CSIRO and ARCCSS. To access the data you need to be part of rr7 group, request access via | my.nci.org.au
Data is located in
pressure levels: /g/data1/rr7/JRA55/6hr/atmos/<varname>/v1/<filenames>
model levels: /g/data1/rr7/JRA55/6hr/atmos/reg-tl319/<varname>/v1/<filenames>
Filenames are: _<mip>_JRA55_<grid>_<YYYYMMDDHH-YYYMMDDHH>.nc <grid> information is currently present only for model level data and it is "reg-tl319" <mip> is 6hrPlev and 6hrLev for pressure and model levels respectively
List of variables
Currently available variables on model levels are
- ta - atmospheric temperature
- ua - eastward wind component
- va - northward wind component
- hus - specific humidity
- zg - geopotential
- ps - surface air pressure
Currently available variables on pressure levels are
- tas- surface atmospheric temperature
- uas - surface eastward wind component
- vas - surface northward wind component
- hurs - surface relative humidity
- huss - surface specific humidity
- zg - geopotential
- ps - surface air pressure
- psl - air pressure at sea level
- dptas - Near-Surface Dew Point Depression
Download & conversion process
We downloaded the model analysis level from the NCAR website and the pressure level data from the JMA Data Dissemination System
Feedback
You can add comment on this collection directly here or on the dedicated | Observational and Reanalysis Data page on NCI confluence For questions use the | Climate Community confluence questions .