edu.ucar.gdex::d651018 eng; USA utf-8 dataset NSF NCAR Geoscience Data Exchange datahelp@ucar.edu https://gdex.ucar.edu NSF NCAR Geoscience Data Exchange The Geoscience Data Exchange (GDEX), managed by the Computational and Information Systems Laboratory (CISL) at NSF NCAR, contains a large collection of meteorological, atmospheric composition, and oceanographic observations, and operational and reanalysis model outputs, integrated with NSF NCAR High Performance Compute services to support atmospheric and geosciences research. download pointOfContact 2026-04-22T19:46:53Z ISO 19115 Geographic Information - Metadata ISO19115:2003/Cor 1 2006 https://doi.org/10.26024/rawv-yx53 Atmospheric River Tracking Method Intercomparison Project Tier 2 Reanalysis Source Data and Catalogues d651018 2022-09-16 publication Shields, Christine A. author Marquardt Collow, Allison B. author Guan, Bin author Kim, Sol author Lora, Juan Manuel author McClenny, Elizabeth E. author Nardi, Kyle M. author Payne, Ashley E. author Reid, Kimberley J. author Shearer, Eric Jay author Tom\u00e9, Ricardo author Wille, Jonathan D. author Ramos, Alexandre M. author Gorodetskaya, Irina V. author Leung, L. Ruby author O'Brien, Travis Allen author Ralph, Fred Martin author Rutz, Jonathan J. author Ullrich, Paul A. author Wehner, Michael F. author NSF National Center for Atmospheric Research publisher 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. completed datahelp@ucar.edu pointOfContact notPlanned dataset https://gdex.ucar.edu/images/ds_logos/default_200_200.png Logo thumbnail from URL png NetCDF dataset Resource Type 2021-03-30 revision 4.4 DataCite Metadata Working Group orginator resourceTypeGeneral CESM > NCAR Community Earth System Model U.S. National Aeronautics and Space Administration Global Change Master Directory GCMD 2026-04-15 revision 23.7 NASA Global Change Master Directory orginator Valids List: Platforms EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > LIQUID PRECIPITATION > RAIN U.S. National Aeronautics and Space Administration Global Change Master Directory GCMD 2026-04-15 revision 23.7 NASA Global Change Master Directory orginator Valids List: Science and Services Keywords Creative Commons Attribution 4.0 International License None eng utf-8 climatologyMeteorologyAtmosphere 1980-01 2019-12 NSF NCAR Geoscience Data Exchange datahelp@ucar.edu https://gdex.ucar.edu distributor 10717802.347 https://gdex.ucar.edu/datasets/d651018/ https Dataset Description Related Link information https://gdex.ucar.edu/datasets/d651018/dataaccess/ https Data Access Related Link download none asNeeded