Atmospheric River Tracking Method Intercomparison Project Tier 2 Reanalysis Source Data and Catalogues

Atmospheric River Tracking Method Intercomparison Project (ARTMIP) Tier 2 Reanalysis developer catalogues and source data. Each ARTMIP method/algorithm (named by developer) submits a catalogue comprised of 0's (no AR exists) or 1's (yes AR exists) for each time slice, for each grid point, using reanalysis data from MERRA-2, ERA5, JRA-55 and JRA-55C. Quantities required for algorithms, such as IVT or IWV, were provided directly from the reanalysis output to avoid differences due to vertical resolution of the lowest model level in the reanalyses.

Required catalogs for each ARTMIP method/algorithm included hourly binary AR tags in MERRA-2 for the period of January 1980 through December 2019 and hourly binary AR tags in ERA5 for the period of January 2000 through December 2019. Participants also had the option to submit hourly catalogs for January 1980 through December 1999 in ERA5 and six-hourly catalogs for January 1980 through December 2019 in JRA-55 and JRA-55C.

Dataset information:

Each tar file contains monthly files with hourly data from ERA5 at the native resolution of ERA5 (0.25 degrees latitude x 0.25 degrees longitude). This dataset is large, taking up over 4Tb when compressed.

ERA5_slvsubset_*.tar.gz contains column water, the U and V components of the moisture flux, and precipitation. Note that these files are compressed using a scale factor and offset for the data.

ERA5_IWV contains column water vapor

ERA5_hourlyIVT_.tar.gz contains IVT computed from the U and V components of the moisture flux in ERA5_slvsubser_.tar.gz. Note: for ERA5_hourlyIVT files, the latitude metadata is incorrect, values follow ERA5 convection (90 to -90) and NOT -90 to 90 as written.

ERA5_850hpawinds contain u850 and v850 millibar winds

Errata:

For ERA5_hourlyIVT files, the latitude metadata is incorrect, values follow ERA5 convection (90 to -90) and NOT -90 to 90 as written. Note: slvsubset includes U IVT and V IVT. If possible, we encourage using data from slvsubset instead of IVT due to the aforementioned errata.

Reid500 has a discontinuity bug at the wrapping point between -180 and 180 degrees

TempestLR inadvertently contains missing data for the latitude and longitude variables. However these can be acquired from the ERA5 source data itself.

To Access Resource:

Questions? Email Resource Support Contact:

  • Teagan King
    tking@ucar.edu
    UCAR/NCAR - Research Data Archive

Temporal Range

  • Begin:  1980-01
    End:  2019-12

Keywords

Resource Type dataset
Temporal Range Begin 1980-01
Temporal Range End 2019-12
Temporal Resolution N/A
Bounding Box North Lat N/A
Bounding Box South Lat N/A
Bounding Box West Long N/A
Bounding Box East Long N/A
Spatial Representation N/A
Spatial Resolution N/A
Related Links N/A
Additional Information N/A
Resource Format NetCDF (Binary)
Standardized Resource Format NetCDF
Asset Size 0.00 MB
Legal Constraints

Creative Commons Attribution 4.0 International License
Access Constraints None
Software Implementation Language N/A

Resource Support Name Teagan King
Resource Support Email tking@ucar.edu
Resource Support Organization UCAR/NCAR - Research Data Archive
Distributor NCAR Research Data Archive
Metadata Contact Name N/A
Metadata Contact Email rdahelp@ucar.edu
Metadata Contact Organization NCAR Research Data Archive

Author Allison B. Marquardt Collow, Christine A.
Guan, Bin
Kim, S.
Lora, Juan Manuel
McClenny, Elizabeth
Nardi, K.
Payne, Ashley E.
Reid, K.
Shearer, E. J.
Tome, Ricardo
Wille, J. D.
Ramos, Alexandre M.
Gorodetskaya, Irina V.
Leung, L. Ruby
O'Brien, Travis Allen
Ralph, F. Martin
Rutz, Jonathan J.
Ullrich, Paul A.
Wehner, Michael F
Publisher Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory
Publication Date 2024-11-07
Digital Object Identifier (DOI) https://doi.org/10.26024/rawv-yx53
Alternate Identifier d651018
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress completed
Metadata Date 2025-05-02T16:05:01Z
Metadata Record Identifier edu.ucar.rda::d651018
Metadata Language eng; USA
Suggested Citation Allison B. Marquardt Collow, Christine A., Guan, Bin, Kim, S., Lora, Juan Manuel, McClenny, Elizabeth, Nardi, K., Payne, Ashley E., Reid, K., Shearer, E. J., Tome, Ricardo, Wille, J. D., Ramos, Alexandre M., Gorodetskaya, Irina V., Leung, L. Ruby, O'Brien, Travis Allen, Ralph, F. Martin, Rutz, Jonathan J., Ullrich, Paul A., Wehner, Michael F. (2024). Atmospheric River Tracking Method Intercomparison Project Tier 2 Reanalysis Source Data and Catalogues. Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory. https://doi.org/10.26024/rawv-yx53. Accessed 23 May 2025.

Harvest Source