edu.ucar.opensky::articles:24125 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-25T06:35:22.162391 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7q52t02 https://doi.org/10.5065/9EYR-TY90 https Related Dataset #1 The International Surface Pressure Databank version 4 https://doi.org/10.5065/H93G-WS83 https Related Dataset #2 NOAA-CIRES-DOE Twentieth Century Reanalysis Version 3 https://doi.org/10.5285/10d3e3640f004c578403419aac167d82 https Related Dataset #3 CRU TS4.03: Climatic Research Unit (CRU) Time-Series (TS) version 4.03 of high-resolution gridded data of month-by-month variation in climate (Jan. 1901- Dec. 2018) https://doi.org/10.7289/V5MC8X31 https Related Dataset #4 NOAA Climate Data Record (CDR) of MSU and AMSU-A Mean Layer Temperatures, UAH Version 6.0 https://doi.org/10.24425/118747 https Related Other #1 Polish Polar Research An evaluation of the performance of the Twentieth Century Reanalysis version 3 2021-02-01T00:00:00Z publication https://n2t.org/ark:/85065/d7q52t02 https://doi.org/10.1175/JCLI-D-20-0505.1 Slivinski, L. C. author Compo, G. P. author Sardeshmukh, P. D. author Whitaker, J. S. author McColl, C. author Allan, R. J. author Brohan, P. author Yin, X. author Smith, C. A. author Spencer, L. J. author Vose, R. S. author Rohrer, M. author Conroy, Riley author Schuster, Douglas C. author Kennedy, J. J. author Ashcroft, L. author Brönnimann, S. author Brunet, M. author Camuffo, D. author Cornes, R. author Cram, Thomas A. author Domínguez-Castro, F. author Freeman, J. E. author Gergis, J. author Hawkins, E. author Jones, P. D. author Kubota, H. author Lee, T. C. author Lorrey, A. M. author Luterbacher, J. author Mock, C. J. author Przybylak, R. K. author Pudmenzky, C. author Slonosky, V. C. author Tinz, B. author Trewin, B. author Wang, X. L. author Wilkinson, C. author Wood, K. author Wyszyński, P. author UCAR/NCAR - Library publisher The performance of a new historical reanalysis, the NOAA-CIRES-DOE Twentieth Century Reanalysis version 3 (20CRv3), is evaluated via comparisons with other reanalyses and independent observations. This dataset provides global, 3-hourly estimates of the atmosphere from 1806 to 2015 by assimilating only surface pressure observations and prescribing sea surface temperature, sea ice concentration, and radiative forcings. Comparisons with independent observations, other reanalyses, and satellite products suggest that 20CRv3 can reliably produce atmospheric estimates on scales ranging from weather events to long-term climatic trends. Not only does 20CRv3 recreate a "best estimate" of the weather, including extreme events, it also provides an estimate of its confidence through the use of an ensemble. Surface pressure statistics suggest that these confidence estimates are reliable. Comparisons with independent upper-air observations in the Northern Hemisphere demonstrate that 20CRv3 has skill throughout the twentieth century. Upper-air fields from 20CRv3 in the late twentieth century and early twenty-first century correlate well with full-input reanalyses, and the correlation is predicted by the confidence fields from 20CRv3. The skill of analyzed 500-hPa geopotential heights from 20CRv3 for 1979-2015 is comparable to that of modern operational 3-4-day forecasts. Finally, 20CRv3 performs well on climate time scales. Long time series and multidecadal averages of mass, circulation, and precipitation fields agree well with modern reanalyses and station- and satellite-based products. 20CRv3 is also able to capture trends in tropospheric-layer temperatures that correlate well with independent products in the twentieth century, placing recent trends in a longer historical context. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation