edu.ucar.gdex::d651091 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 2026-09-17T17:38:56Z ISO 19115 Geographic Information - Metadata ISO19115:2003/Cor 1 2006 https://gdex.ucar.edu/datasets/d651091 paleoWeather: CESM-HR simulations with water isotopes for the Last Glacial Maximum d651091 2026-09-16 publication Otto-Bliesner, Bette L. author NSF National Center for Atmospheric Research publisher Supported by an Accelerated Scientific Discovery (ASD) Derecho computing grant (ACGD0008 to Otto-Bliesner; paleo-Weather), high-resolution Community Earth System Model (CESM-HR) simulation of the Last Glacial Maximum (LGM, 21 thousand years ago) has been completed. The high-resolution simulation includes water isotope capability, enabling direct comparisons with isotope records of past and present climate change from a range of archives. The simulation followed the protocols of the Paleo-climate Model Intercomparison Project phase 4 (PMIP4) and was run with atmospheric CO2 concentrations of 190 ppmv and ice-sheet conditions from the ICE-6G reconstruction. The simulation was initialized from a near-equilibrated, low-resolution companion simulation and integrated for 60 years. The LGM dataset is one of four high-resolution simulation datasets produced through the ASD paleo-Weather project. The other datasets represent the Preindustrial, mid-Piacenzian Warm Period, and two Early Eocene Climatic Optimum. Establishing separate GDEX dataset records for each period will allow the respective leads who set up and ran the simulations to serve as leads for the corresponding DOI. Each GDEX landing page will include links to the other paleo-Weather simulations, enabling discovery and comparison across climate periods. To our knowledge, the ASD paleo-Weather collection represents the first high-resolution paleo-climate simulation suite of this kind made available to the community. Its horizontal grid spacing is approximately ten times finer than traditional climate-model configurations, which typically use resolutions of 1 to 2 degrees. The CESM-HR resolution more realistically represents synoptic- and mesoscale atmospheric and oceanic phenomena, together with their interactions with large-scale circulation. The LGM dataset will support research on weather/climate interactions in a cold-climate state, including studies of extreme events such as heat waves, atmospheric rivers, and tropical cyclones. More broadly, the paleo-Weather simulations complement the MESACLIP historical and future simulations, providing opportunities to investigate links between climate and weather extremes across past, present, and future climate states. 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 CESM > NCAR Community Earth System Model U.S. National Aeronautics and Space Administration Global Change Master Directory GCMD 2026-09-16 revision 24.8 NASA Global Change Master Directory orginator Valids List: Platforms EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SEA LEVEL PRESSURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > RELATIVE HUMIDITY EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION RATE EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION PROFILES > LATENT HEAT FLUX EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > LIQUID PRECIPITATION > RAIN EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > SPECIFIC HUMIDITY EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > UPPER AIR TEMPERATURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > U/V WIND COMPONENTS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND DYNAMICS > VERTICAL WIND VELOCITY/SPEED U.S. National Aeronautics and Space Administration Global Change Master Directory GCMD 2026-09-16 revision 24.8 NASA Global Change Master Directory orginator Valids List: Science and Services Keywords Creative Commons Attribution 4.0 International License None eng utf-8 climatologyMeteorologyAtmosphere NSF NCAR Geoscience Data Exchange datahelp@ucar.edu https://gdex.ucar.edu distributor 0 https://gdex.ucar.edu/datasets/d651091/ https Dataset Description Related Link information https://gdex.ucar.edu/datasets/d651091/dataaccess/ https Data Access Related Link download none asNeeded