edu.ucar.gdex::d651031 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 2025-11-24T19:44:00Z ISO 19115 Geographic Information - Metadata ISO19115:2003/Cor 1 2006 https://doi.org/10.5065/22T5-FC65 Idealized Interdecadal Pacific Oscillation (IPO) Pacemaker d651031 2020-01-30 publication NSF NCAR - Climate and Global Dynamics author NSF National Center for Atmospheric Research publisher This archive contains data from the CESM1 Idealized Interdecadal Pacific Oscillation (IPO) pacemaker ensemble. Three sets of idealized Pacific pacemaker simulations were performed. One standard deviation of SST anomalies was added to the model simulated SST in the Pacific between 40S-60N: positive IPO, negative IPO, neutral IPO. For each set, ten starting years were chosen with different states of the IPO from the CESM1 large-ensemble preindustrial control run: negative IPO (years 926, 1331, 1366); positive IPO (years 606, 1011, 1251); Neutral IPO, but trending towards negative (year 1321, 1356); and Neutral IPO, but trending towards positive (year 1001, 1241). For each of these starting years, the simulations started on January 1 and the model simulations were run for 10 years. The experiments were named by the IPO phase, pre-industrial control start year, and sign of the added SST anomaly. For example, simulations with "IPO_p2p.syr1251" in the name, translates as follows: "_p2p" refers to a positive IPO initial state ("_p") , with an added positive SST anomaly (denoted by "2p"), and a starting year from the CESM1 Large Ensemble pre-industrial control of 1251. In the filenames, "p2p", "n2p", "2p2p" and "2n2p" represent idealized positive IPO experiments (denoted by the last letter being "p" or the last two letters being "2p") where positive IPO SST anomalies are added onto the model simulated SSTs. The first letters "p", "n", "2p" or "2n" represent the initial IPO states, such as "p" representing positive IPO initial states, "n" representing negative IPO initial states, and "2p" ("2n") representing neutral IPO states trending towards positive (negative). Simulations with "p2n", "n2n","2p2n" or "2n2n" in their filenames are negative IPO experiments where negative IPO SST anomalies are added onto the model simulated SSTs. The first one (or two) letter(s) represent the initial state of the IPO. Similarly, simulations with "p2c","n2c","2p2c","2n2c" in their filenames are neutral IPO experiments where neutral IPO SST anomalies are added onto the model simulated SSTs. The purpose for these different starting states of the IPO is to test whether the influence of the IPO on other parts of the globe depends on the initial states of the IPO. An example would be whether the climate response would be larger in an idealized positive IPO experiments with an initial state of positive IPO rather than initial state of a negative IPO. Note: Beyond the simulations documented above, there are additional simulations in this archive. All simulations with "1pct.syr", "2pct.syr", "IPOm_rstr2","IPOp_rstr2" in their filenames should not be used. 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 2026-02-27 revision 23.4 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 TEMPERATURE > UPPER AIR TEMPERATURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > SPECIFIC HUMIDITY EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > U/V WIND COMPONENTS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND DYNAMICS > VERTICAL WIND VELOCITY/SPEED EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > LIQUID PRECIPITATION > RAIN EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION PROFILES > LATENT HEAT FLUX U.S. National Aeronautics and Space Administration Global Change Master Directory GCMD 2026-02-27 revision 23.4 NASA Global Change Master Directory orginator Valids List: Science and Services Keywords Creative Commons Attribution 4.0 International License None eng utf-8 climatologyMeteorologyAtmosphere 0606-01-01 1375-12-31 NSF NCAR Geoscience Data Exchange datahelp@ucar.edu https://gdex.ucar.edu distributor 37044945.572 https://gdex.ucar.edu/datasets/d651031/ https Dataset Description Related Link information https://gdex.ucar.edu/datasets/d651031/dataaccess/ https Data Access Related Link download none asNeeded