edu.ucar.gdex::d010001 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 2026-04-03T02:45:11Z ISO 19115 Geographic Information - Metadata ISO19115:2003/Cor 1 2006 https://doi.org/10.5065/Z88P-AW38 Monthly Northern Hemisphere Sea-Level Pressure Grids, continuing from 1899 d010001 1979-12-13 publication National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce author Marine Meteorology Division, Naval Research Laboratory, Monterey, U.S. Navy, U. S. Department of Defense author Met Office, Ministry of Defence, United Kingdom author Department of Atmospheric Sciences, University of Illinois at Urbana-Champaign author Research Data Archive, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research author Department of Earth, Atmospheric & Planetary Sciences, Massachusetts Institute of Technology author National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce author National Weather Service, NOAA, U.S. Department of Commerce author NSF National Center for Atmospheric Research publisher This dataset contains the longest continuous time series of monthly gridded Northern Hemisphere sea-level pressure data in the DSS archive. The 5-degree latitude/longitude grids, computed from the daily grids in ds010.0 [http://rda.ucar.edu/datasets/ds010.0/], begin in 1899 and cover the Northern Hemisphere from 15N to the North Pole. The dataset continues to be updated regularly as new data become available. Each monthly grid is a simple average of all available daily grids for the month. Prior to 1955, there is one grid per day. From July 1962 on, there are two grids each day. In the interim period, the number of daily grids varies between one and two. The grids for the period 1899-1977 were inspected and many corrections were made by Kevin Trenberth of the Laboratory of Atmospheric Research at the University of Illinois at Champaign-Urbana, and these grids are included in this dataset. For more information about these corrections, see the July 1980 issue of Monthly Weather Review. onGoing datahelp@ucar.edu pointOfContact monthly dataset DSS SLP Grid dataset Resource Type 2021-03-30 revision 4.4 DataCite Metadata Working Group orginator resourceTypeGeneral GRIDDING METHODS MAPS > MAPS U.S. National Aeronautics and Space Administration Global Change Master Directory GCMD 2026-03-19 revision 23.6 NASA Global Change Master Directory orginator Valids List: Platforms ESSPO > 433L ESSPO U.S. National Aeronautics and Space Administration Global Change Master Directory GCMD 2026-03-19 revision 23.6 NASA Global Change Master Directory orginator Valids List: Projects EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SEA LEVEL PRESSURE U.S. National Aeronautics and Space Administration Global Change Master Directory GCMD 2026-03-19 revision 23.6 NASA Global Change Master Directory orginator Valids List: Science and Services Keywords Creative Commons Attribution 4.0 International License None grid 5 eng utf-8 climatologyMeteorologyAtmosphere -180.0 180.0 15.0 90.0 1899-01-01T1300+00 2026-03-31T2400+00 NSF NCAR Geoscience Data Exchange datahelp@ucar.edu https://gdex.ucar.edu distributor 3.127 https://gdex.ucar.edu/datasets/d010001/ https Dataset Description Related Link information https://gdex.ucar.edu/datasets/d010001/dataaccess/ https Data Access Related Link download none asNeeded