Local and Remote Atmosphere‐Ocean Coupling During Extreme Warming Events Impacting Subsurface Ocean Temperature in an Antarctic Embayment DOI
Andrea Piñones,

N. Aziares‐Aguayo,

P. Amador‐Véliz

et al.

Journal of Geophysical Research Oceans, Journal Year: 2024, Volume and Issue: 129(9)

Published: Aug. 28, 2024

Abstract Coastal ocean temperatures can respond to different atmospheric and oceanic processes at local spatial scales or through remote teleconnections. This study focused on subsurface (subT) 10 m depth in Maxwell Bay, northern Antarctic Peninsula from February 2017 January 2022. It investigated extreme warming events during austral summers their interaction with conditions regionally locally. The analysis identified active Marine Heat Waves (MHWs) March January‐February 2020 associated a significantly negative Southern Annular Mode index observed 3–4 months before the temperature increase. In 2017, exceeded climatological mean by over 1°C. anomaly was linked strengthened Amundsen Sea Low blocking anticyclone moving between Scotia South‐West Atlantic Ocean that deflected westerly winds facilitated anomalous transport of warmer air masses AP. 2020, highest recorded subT (2.97°C), although air‐sea heat fluxes did not show similar pattern. one most intense heatwaves ever West Antarctica observed. heatwave corresponded maximum positive sea surface anomalies extending throughout western region Ocean, related an extremely Mode. provides valuable insights into impact strong MHWs, phenomenon has been less documented coastal regions.

Language: Английский

Hard clam resilience to marine heatwaves in the face of climate change DOI Creative Commons
Jian Liang, Fortunatus Masanja, Yongren Li

et al.

Frontiers in Marine Science, Journal Year: 2024, Volume and Issue: 11

Published: March 22, 2024

The frequency and severity of marine heatwaves (MHWs) have reached new heights in the last two decades. Intensifying MHWs can affect intertidal bivalves, but extent their impacts remains largely underestimated. Here, we tested how persistent (P-MHW) repeated (R-MHW) events affected physiological energetics ecologically economically clams Mercenaria mercenaria inhabiting habitats. Compared to individuals maintained under ambient conditions, exposed both scenarios exhibited significant increases clearance rate, absorption efficiency, respiration excretion scope for growth, showing compensatory energetic mechanisms cope with MHWs. Especially, M. were more sensitive than Given that response act as an early indicator fitness our results indicated merceneria likely hold ability readily recover from exposure MHWs, enabling its continued resilience a rapidly changing environment.

Language: Английский

Citations

6
Marine Heatwaves and Associated Rainfall Over the East China Sea Simulated Using a Convection-Permitting Regional Air–Sea Coupled Model DOI
Zhiyu Jiang, Jianping Tang, Shuguang Wang

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Local and Remote Atmosphere‐Ocean Coupling During Extreme Warming Events Impacting Subsurface Ocean Temperature in an Antarctic Embayment DOI
Andrea Piñones,

N. Aziares‐Aguayo,

P. Amador‐Véliz

et al.

Journal of Geophysical Research Oceans, Journal Year: 2024, Volume and Issue: 129(9)

Published: Aug. 28, 2024

Abstract Coastal ocean temperatures can respond to different atmospheric and oceanic processes at local spatial scales or through remote teleconnections. This study focused on subsurface (subT) 10 m depth in Maxwell Bay, northern Antarctic Peninsula from February 2017 January 2022. It investigated extreme warming events during austral summers their interaction with conditions regionally locally. The analysis identified active Marine Heat Waves (MHWs) March January‐February 2020 associated a significantly negative Southern Annular Mode index observed 3–4 months before the temperature increase. In 2017, exceeded climatological mean by over 1°C. anomaly was linked strengthened Amundsen Sea Low blocking anticyclone moving between Scotia South‐West Atlantic Ocean that deflected westerly winds facilitated anomalous transport of warmer air masses AP. 2020, highest recorded subT (2.97°C), although air‐sea heat fluxes did not show similar pattern. one most intense heatwaves ever West Antarctica observed. heatwave corresponded maximum positive sea surface anomalies extending throughout western region Ocean, related an extremely Mode. provides valuable insights into impact strong MHWs, phenomenon has been less documented coastal regions.

Language: Английский

Citations

1