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Sixty Years of Widespread Warming in the Southern Mid- and High-Latitudes (1957-2016)

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F19%3A00508309" target="_blank" >RIV/68378289:_____/19:00508309 - isvavai.cz</a>

  • Result on the web

    <a href="https://journals.ametsoc.org/doi/10.1175/JCLI-D-18-0565.1" target="_blank" >https://journals.ametsoc.org/doi/10.1175/JCLI-D-18-0565.1</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1175/JCLI-D-18-0565.1" target="_blank" >10.1175/JCLI-D-18-0565.1</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Sixty Years of Widespread Warming in the Southern Mid- and High-Latitudes (1957-2016)

  • Original language description

    Temperature trends across Antarctica over the last few decades reveal strong and statistically significant warming in West Antarctica and the Antarctic Peninsula (AP) contrasting with no significant change overall in East Antarctica. However, recent studies have documented cooling in the AP since the late 1990s. This study aims to place temperature changes in the AP and West Antarctica into a larger spatial and temporal perspective by analyzing monthly station-based surface temperature observations since 1957 across the extratropical Southern Hemisphere, along with sea surface temperature (SST) data and mean sea level pressure reanalysis data. The results confirm statistically significant cooling in station observations and SST trends throughout the AP region since 1999. However, the full 60-year period shows statistically significant, widespread warming across most of the Southern Hemisphere mid- and high-latitudes. Positive SST trends broadly reflect these warming trends, especially in the mid-latitudes. After confirming the importance of the Southern Annular Mode (SAM) on southern high-latitude climate variability, the influence is removed from the station temperature records, revealing statistically significant background warming across all of the extratropical Southern Hemisphere. Antarctic temperature trends in a suite of climate models from the Coupled Model Intercomparison Project Phase 5 (CMIP5) are then investigated. Consistent with previous work the CMIP5 models warm Antarctica at the background temperature rate that is two times faster than that observed. However, removing the SAM influence from both CMIP5 temperatures and those observed results in Antarctic trends that differ only modestly, perhaps due to natural multidecadal variability remaining in the observations.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10509 - Meteorology and atmospheric sciences

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Climate

  • ISSN

    0894-8755

  • e-ISSN

  • Volume of the periodical

    32

  • Issue of the periodical within the volume

    20

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    24

  • Pages from-to

    6875-6898

  • UT code for WoS article

    000486261000001

  • EID of the result in the Scopus database

    2-s2.0-85074630096