Climate Change on Ocean Dynamics (2nd Edition)

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Climatology".

Deadline for manuscript submissions: closed (30 June 2024) | Viewed by 1075

Special Issue Editors

1. Department of Atmospheric and Oceanic Science, Fudan University, Shanghai 200433, China
2. Department of Earth System Sciences, University of California, Irvine, CA 92697, USA
Interests: biogeochemical modelling; data assimilation; climate change; inverse methods; benchmarking system;
Special Issues, Collections and Topics in MDPI journals
International Center for Climate and Environment Science (ICCES), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
Interests: air-sea interaction; climate prediction; data assimilation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue is the second edition in a series of publications dedicated to “Climate Change on Ocean Dynamics” (https://www.mdpi.com/journal/atmosphere/special_issues/climate_change_ocean_dynamics ).

The ocean plays a critically important role in climate change. About 93% of the additional heat and 30% of the carbon dioxide produced by human activity is absorbed by the ocean, which strongly regulates long-term climate variations. Climate change, driven by an exponential increase in the global emissions of greenhouse gases, will continue to impact the ocean through a variety of channels in the coming years, as indicated by Earth system models. In response to climate warming, the ocean has experienced many profound changes, e.g., rapid ice melting, extreme sea level events, marine heatwaves, intensified boundary currents, changes in the frequency and intensity of recurring climate patterns, and unexpected shifts in marine ecosystems. The severe impact of climate change on ocean dynamics has broad implications for our society and must be taken seriously, both for adaptation efforts and urgent mitigation strategies.

Understanding ocean dynamics is essential for the exploration of climate change at different spatial/temporal scales. This Special Issue aims to promote studies that analyze the connection between climate change and ocean dynamics and consequently advance our understanding of the impact that the ocean will have on future climate change.

Potential submission topics include, but are not limited to, the following:

  • Changes to the ocean’s mixed layer and stratification and implications for extreme climate variability, particularly at extratropical latitudes;
  • The impact of large-scale ocean dynamics (e.g., AMOC) on future climate change and low-frequency variability (e.g., ENSO, PDO, etc.) in Earth system models;
  • The impact of river flows, flooding, and variable land-based precipitation on ocean salinity and circulation;
  • The impact of atmospheric changes and shifts in wind patterns on the frequency and intensity of coastal storm systems and upwelling;
  • Drivers of drastic changes in polar areas, such as shifts in the timing of the annual melt seasons, changes in ice sheets, and marine ecosystems.

We look forward to receiving your manuscripts in relation to all of the above.

Dr. Weiwei Fu
Dr. Fei Zheng
Guest Editors

Manuscript Submission Information

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Keywords

  • ocean dynamics
  • climate variability
  • polar regions
  • assimilation
  • physical processes

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Published Papers (2 papers)

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Research

10 pages, 6949 KiB  
Article
The Impact of Annual Cycles on Anomalous Wind Meridional Structures of the ENSO
by Yuhan Gong, Jiahao Lu and Tian Li
Atmosphere 2024, 15(8), 950; https://doi.org/10.3390/atmos15080950 - 8 Aug 2024
Viewed by 315
Abstract
The anomalous zonal wind moves southward during the ENSO mature phase in boreal winter. Previous studies suggest that it may be caused by the nonlinear interaction of annual cycles or the influence of background mean state changes. In this research, the ECHAM4.6 atmospheric [...] Read more.
The anomalous zonal wind moves southward during the ENSO mature phase in boreal winter. Previous studies suggest that it may be caused by the nonlinear interaction of annual cycles or the influence of background mean state changes. In this research, the ECHAM4.6 atmospheric model is used to confirm the mechanism of the anomalous zonal wind southward shifting. The annual cycle of solar radiation and SST are removed in the sensitivity experiments to avoid the interaction between the ENSO and annual cycle. The results show that the north–south asymmetry mode of the ENSO anomalous wind field is not the result of a nonlinear interaction between ENSO and the annual cycle. The mean v-winds in winter motivate the southward shifting of the ENSO anomalous wind field through advection. Full article
(This article belongs to the Special Issue Climate Change on Ocean Dynamics (2nd Edition))
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15 pages, 9671 KiB  
Article
Analysis of Extreme Cold Events of December 2022 and January 2024 in the United States
by Yang Song, Hongyan Cui, Changshui Xia, Baoxu Chen, Ziqun Zhang, Xiaohui Sun and Chang Gao
Atmosphere 2024, 15(8), 893; https://doi.org/10.3390/atmos15080893 - 26 Jul 2024
Viewed by 445
Abstract
In December 2022, the United States (US) experienced an extreme cold event. Its duration was 5 days, and it ranked third in intensity (−9.16 °C) during the period from 1979 to 2022. During the Early Stage (12–16 December), the surface air temperature (SAT) [...] Read more.
In December 2022, the United States (US) experienced an extreme cold event. Its duration was 5 days, and it ranked third in intensity (−9.16 °C) during the period from 1979 to 2022. During the Early Stage (12–16 December), the surface air temperature (SAT) anomaly peaked at 2.98 °C. In the Development Stage (17–21 December), cold air moved towards North America (NA). This event reached its peak during the Outbreak Stage (22–26 December), with a minimum SAT anomaly of −9.16 °C. Concurrently, high pressure occurred in Alaska and the Archipelago region, while low-pressure centers occurred in the US. The U-component of wind (U-wind) was in a negative anomaly in the northern part of NA. The negative anomaly of the V-component of wind (V-wind) moved southward. These atmospheric structural changes facilitated the southward movement of cold air from the Arctic to NA. Furthermore, a positive (negative) U-wind anomaly was observed to obstruct (promote) the southward progression of cold air to NA. A linear regression analysis indicated that a negative Arctic Oscillation (AO) correlated with the accumulation of cold air in the Arctic, while a positive Arctic High led to the transport of cold air to NA. In an empirical orthogonal function (EOF) analysis, EOF1 (16.3%) was characterized by a warm Arctic and cold northern part of NA pattern, reflecting the cold air from the Arctic region moving southward into NA, while EOF2 (14.4%) depicted a cold Arctic and cold NA pattern, characterizing the outbreak of cold events in the US. In January 2024, the US experienced another extreme cold event. Its maximum intensity was −9.50 °C, and its duration was 8 days. The course of the two cold events was very similar. Full article
(This article belongs to the Special Issue Climate Change on Ocean Dynamics (2nd Edition))
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