edu.ucar.gdex::d583128 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 2026-04-22T17:02:30Z ISO 19115 Geographic Information - Metadata ISO19115:2003/Cor 1 2006 https://doi.org/10.5065/gry9-7q56 MPAS-A moisture-sensitivity simulations with convection-permitting resolution and regional configuration using the Model for Prediction Across Scales (MPAS) version 7.3 d583128 2023-09-15 publication N\u00fa\u00f1ez Ocasio, Kelly M. author NSF National Center for Atmospheric Research publisher The dataset includes post-processed model outputs from 12 regional configuration moisture-sensitivity simulations using the MPAS-A version 7.3. The Limited-Area domain encompasses 30 degree S to 51 degree N and -65 degree W to 59 degree E. A 15km by 3km variable-resolution mesh is used with the 3km refinement region elliptically shaped. The mesh is rotated 5 degree to ensure the track of pre-Helene remains within the refined region. The refined region is over Africa and parts of the Atlantic. The reason to use a combined Limited-Area and variable-resolution mesh is to be computationally effective while giving sufficient resolution at the edge of the domain for the initial and lateral boundary conditions to be assimilated and resolved appropriately. The model was initialized using ERA5 data to simulate the period of the African easterly wave (AEW) that became hurricane Helene in 2006 as in: https://doi.org/10.5065/t224-6s94. The regional configuration is used to allow altering initial and lateral boundary conditions of relative humidity (RH) through the entire atmospheric column using ERA5 pressure-level data. Perturbed experiments are done by randomly perturbing temperature at 1000 hPa (Gaussian with 0.6 K standard deviation). The dataset can be used to study this specific AEW case and other easterly waves, mesoscale convective systems, African weather, West African Monsoon, ITCZ, etc. Although the model produces 15km by 3km horizontal grid outputs, the post-processed outputs available here were interpolated to a 0.25-degree by 0.25 degree latitude by longitude grid and 27 isobaric levels (in the vertical). More details of the data and analysis are published in the Journal of Advances in Modeling Earth Systems (JAMES): Nunez Ocasio et al. 2024. https://doi.org/10.1029/2023MS004070 completed datahelp@ucar.edu pointOfContact notPlanned dataset https://gdex.ucar.edu/images/ds_logos/default_200_200.png Logo thumbnail from URL png HDF5/NetCDF4 dataset Resource Type 2021-03-30 revision 4.4 DataCite Metadata Working Group orginator resourceTypeGeneral WRF > Weather Research and Forecasting (WRF) 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 > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > RELATIVE HUMIDITY EARTH SCIENCE > ATMOSPHERE > WEATHER EVENTS > RAIN STORMS EARTH SCIENCE > ATMOSPHERE > WEATHER EVENTS > TROPICAL CYCLONES > TROPICAL DEPRESSION MOTION EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > EXTREME WEATHER EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > EXTREME WEATHER > EXTREME PRECIPITATION EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > EXTREME WEATHER > MONSOON ONSET/INTENSITY 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 2006-09-08T120000+00 2006-09-13T180000+00 NSF NCAR Geoscience Data Exchange datahelp@ucar.edu https://gdex.ucar.edu distributor 2308889.933 https://gdex.ucar.edu/datasets/d583128/ https Dataset Description Related Link information https://gdex.ucar.edu/datasets/d583128/dataaccess/ https Data Access Related Link download none asNeeded