RAPID RETREAT OF THE WESTERN MARGIN OF THE NORTHERN AND SOUTHERN CORDILLERAN ICE SHEET IN RESPONSE TO ABRUPT DEGLACIAL SEA-SURFACE TEMPERATURE WARMING

2017 ◽  
Author(s):  
Heather D. Bervid ◽  
◽  
Anders E. Carlson ◽  
Maureen H. Walczak ◽  
Ingrid Hendy ◽  
...  
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Ice Sheet ◽  
Sea Surface ◽  
Western Margin ◽  
Cordilleran Ice Sheet ◽  
Surface Temperature Warming

scholarly journals The influence of direct radiative forcing versus indirect sea surface temperature warming on southern hemisphere subtropical anticyclones under global warming

2021 ◽  
Author(s):  
Abdullah A. Fahad ◽  
Natalie J. Burls
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Southern Hemisphere ◽  
Radiative Forcing ◽  
Diabatic Heating ◽  
Sea Surface ◽  
Atmospheric Response ◽  
Austral Winter ◽  
Subtropical Anticyclone ◽  
Surface Temperature Warming

AbstractSouthern hemisphere subtropical anticyclones are projected to change in a warmer climate during both austral summer and winter. A recent study of CMIP 5 & 6 projections found a combination of local diabatic heating changes and static-stability-induced changes in baroclinic eddy growth as the dominant drivers. Yet the underlying mechanisms forcing these changes still remain uninvestigated. This study aims to enhance our mechanistic understanding of what drives these Southern Hemisphere anticyclones changes during both seasons. Using an AGCM, we decompose the response to CO2-induced warming into two components: (1) the fast atmospheric response to direct CO2 radiative forcing, and (2) the slow atmospheric response due to indirect sea surface temperature warming. Additionally, we isolate the influence of tropical diabatic heating with AGCM added heating experiments. As a complement to our numerical AGCM experiments, we analyze the Atmospheric and Cloud Feedback Model Intercomparison Project experiments. Results from sensitivity experiments show that slow subtropical sea surface temperature warming primarily forces the projected changes in subtropical anticyclones through baroclinicity change. Fast CO2 atmospheric radiative forcing on the other hand plays a secondary role, with the most notable exception being the South Atlantic subtropical anticyclone in austral winter, where it opposes the forcing by sea surface temperature changes resulting in a muted net response. Lastly, we find that tropical diabatic heating changes only significantly influence Southern Hemisphere subtropical anticyclone changes through tropospheric wind shear changes during austral winter.

scholarly journals Modulation of sea surface temperature warming in the B ay of B iscay by L oire and G ironde R ivers

2016 ◽  
Vol 121 (1) ◽  
pp. 966-979 ◽  
Author(s):  
X. Costoya ◽  
D. Fernández‐Nóvoa ◽  
M. deCastro ◽  
F. Santos ◽  
P. Lazure ◽  
...  
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Sea Surface ◽  
Surface Temperature Warming

Ice-sheet growth and high-latitudes sea-surface temperature

1996 ◽  
Vol 12 (7) ◽  
pp. 441-448 ◽  
Author(s):  
A. Berger ◽  
H. Gallée ◽  
X. S. Li ◽  
A. Dutrieux ◽  
M. F. Loutre
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Ice Sheet ◽  
Sea Surface ◽  
High Latitudes

Ice-sheet growth and high-latitudes sea-surface temperature

1996 ◽  
Vol 12 (7) ◽  
pp. 441-448 ◽  
Author(s):  
A. Berger ◽  
H. Gallée ◽  
X. S. Li ◽  
A. Dutrieux ◽  
M. F. Loutre
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Ice Sheet ◽  
Sea Surface ◽  
High Latitudes
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