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Atmosphere and Ocean Dynamics 2024

11.–12. Apr. 2024
GEOMAR-Neubau - Standort Ostufer / GEOMAR new building - East Shore
Europe/Berlin Zeitzone

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Sitzung

Poster

11.04.2024, 15:00
GEOMAR-Neubau - Standort Ostufer / GEOMAR new building - East Shore

GEOMAR-Neubau - Standort Ostufer / GEOMAR new building - East Shore

Wischhofstraße 1-3, 24148 Kiel

Präsentationsmaterialien

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  1. 37. How Has the Ferrel Cell Contributed to the Maintenance of Antarctic Sea Ice at Low Levels from 2016 to 2022?
    Shaoyin Wang (Sun Yat-sen University)
    11.04.24, 15:00
    Poster

    This study investigates the specific circulation anomalies that have sustained the low Antarctic sea ice state since 2016. Firstly, we find a significant strengthening and southward shift in the Ferrel Cell (FC) during 2016–2022, resulting in a marked increase in southward transport of heat and moisture. Secondly, this enhanced FC is closely associated with a stronger circumpolar wave pattern...

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  2. 28. Impact of Intraseasonal Waves on Angolan Warm and Cold Events
    Dr. Rodrigue Anicet Imbol Koungue (GEOMAR Helmholtz Centre for Ocean Research Kiel)
    11.04.24, 15:00
    Poster

    The intraseasonal variability of the tropical eastern boundary upwelling region in the Atlantic Ocean is investigated using multiyear mooring and satellite data. Pronounced oscillations of alongshore velocity and sea level off Angola at periods of about 90 and 120 days are observed. Similar spectral peaks are detected along the equator suggesting an equatorial forcing via equatorial and...

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  3. 25. Importance of ocean observations in ECCC's Global Ocean Analysis GIOPS: The SynObs Project
    Andrew Peterson (Environment and Climate Change Canada)
    11.04.24, 15:00
    Poster

    The Synergistic Observing Network for Ocean Prediction (SynObs) project (https://oceanpredict.org/synobs) seeks to find synergies between ocean observations and ocean prediction through a multi-system approach to an Observing System Experiment (OSE). Best estimates and predictions of the location of eddies, ocean sound speed profiles, ocean currents and ocean water masses are important ocean...

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  4. 21. Mixed layer modes of the two-gyre system
    Arnaud Czaja (Imperial College London)
    11.04.24, 15:00
    Poster

    The coupling of the upper mixed layer with the thermocline is investigated in a planetary geostrophic model. Assuming that submesoscale instabilities lead to a rectified effect of geostrophic eddies on the (late winter) mixed layer depth D, and that the mesoscale eddy field is stronger where the thermocline (depth G) is larger, a parameter (r) coupling D to G is identified. Inclusion of this...

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  5. 33. Mixing processes in the upper tropical Atlantic: An event data base for evaluating vertical mixing parameterizations in Earth System Models
    Marcus Dengler (GEOMAR)
    11.04.24, 15:00
    Poster

    Observational and modelling studies of the tropical ocean mixed layer have shown a dominate role of the vertical diffusive heat flux due to turbulent mixing for maintaining sea surface temperature in the tropical Atlantic. Progress has been made in identifying ocean processes responsible for enhancing turbulent mixing in the upper stratified ocean including near-inertial waves and Tropical...

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  6. 40. Observed variability of AMOC transport components at 11°S
    Anna Hans (GEOMAR - FB1 - Physikalische Ozeanographie)
    11.04.24, 15:00
    Poster

    The Atlantic meridional overturning circulation (AMOC) is a key feature of the oceanic circulation and has a big impact on regional weather and global climate. As the characteristics of the northward return flow of the AMOC crossing the equator are crucial for deep water formation at high latitudes in the North Atlantic, the AMOC variability in the South Atlantic is of particular interest....

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