Accelerating Antarctic glacier melt may be driven by deep-ocean processes

Physics Today ◽  
2015 ◽  
Keyword(s):  
Deep Ocean ◽  
Glacier Melt ◽  
Ocean Processes

Deep ocean fluxes and their link to surface ocean processes and the biological pump

2005 ◽  
Vol 65 (2-4) ◽  
pp. 240-259 ◽  
Author(s):  
T. Rixen ◽  
M.V.S. Guptha ◽  
V. Ittekkot
Keyword(s):  
Deep Ocean ◽  
Biological Pump ◽  
Surface Ocean ◽  
Ocean Processes

Abyssal Benthic Rover, an autonomous vehicle for long-term monitoring of deep-ocean processes

2021 ◽  
Vol 6 (60) ◽  
Author(s):  
K. L. Smith ◽  
A. D. Sherman ◽  
P. R. McGill ◽  
R. G. Henthorn ◽  
J. Ferreira ◽  
...  
Keyword(s):  
Autonomous Vehicle ◽  
Deep Ocean ◽  
Long Term Monitoring ◽  
Term Monitoring ◽  
Ocean Processes

Coastal upwelling off Cape São Tomé (22°S, Brazil): The supporting role of deep ocean processes

2014 ◽  
Vol 89 ◽  
pp. 38-50 ◽  
Author(s):  
A. Palóczy ◽  
I.C.A. da Silveira ◽  
B.M. Castro ◽  
L. Calado
Keyword(s):  
Coastal Upwelling ◽  
Deep Ocean ◽  
Ocean Processes

Hurricane Irene Sensitivity to Stratified Coastal Ocean Cooling

2016 ◽  
Vol 144 (9) ◽  
pp. 3507-3530 ◽  
Author(s):  
Greg Seroka ◽  
Travis Miles ◽  
Yi Xu ◽  
Josh Kohut ◽  
Oscar Schofield ◽  
...  
Keyword(s):  
Tropical Cyclones ◽  
Deep Ocean ◽  
Coastal Ocean ◽  
Atmospheric Modeling ◽  
Storm Intensity ◽  
Satellite Sst ◽  
Hurricane Irene ◽  
Intensity Changes ◽  
The Impact ◽  
Ocean Processes

Cold wakes left behind by tropical cyclones (TCs) have been documented since the 1940s. Many questions remain, however, regarding the details of the processes creating these cold wakes and their in-storm feedbacks onto tropical cyclone intensity. This largely reflects a paucity of measurements within the ocean, especially during storms. Moreover, the bulk of TC research efforts have investigated deep ocean processes—where tropical cyclones spend the vast majority of their lifetimes—and very little attention has been paid to coastal ocean processes despite their critical importance to shoreline populations. Using Hurricane Irene (2011) as a case study, the impact of the cooling of a stratified coastal ocean on storm intensity, size, and structure is quantified. Significant ahead-of-eye-center cooling (at least 6°C) of the Mid-Atlantic Bight occurred as a result of coastal baroclinic processes, and operational satellite SST products and existing coupled ocean–atmosphere hurricane models did not capture this cooling. Irene’s sensitivity to the cooling is tested, and its intensity is found to be most sensitive to the cooling over all other tested WRF parameters. Further, including the cooling in atmospheric modeling mitigated the high storm intensity bias in predictions. Finally, it is shown that this cooling—not track, wind shear, or dry air intrusion—was the key missing contribution in modeling Irene’s rapid decay prior to New Jersey landfall. Rapid and significant intensity changes just before landfall can have substantial implications on storm impacts—wind damage, storm surge, and inland flooding—and thus, coastal ocean processes must be resolved in future hurricane models.

Altimeter Signal-to-Noise for Deep Ocean Processes in Operational Systems

2004 ◽  
Vol 27 (3-4) ◽  
pp. 433-451 ◽  
Author(s):  
KIRK R. WHITMER ◽  
GREGG A. JACOBS ◽  
OLE MARTIN SMEDSTAD
Keyword(s):  
Deep Ocean ◽  
Signal To Noise ◽  
Operational Systems ◽  
Ocean Processes

On the impact of sea ice in a global ocean circulation model

1997 ◽  
Vol 25 ◽  
pp. 111-115 ◽  
Author(s):  
Achim Stössel
Keyword(s):  
Southern Ocean ◽  
Sea Ice ◽  
Ocean Circulation ◽  
General Circulation ◽  
Thermohaline Circulation ◽  
Circulation Model ◽  
Deep Ocean ◽  
Global Ocean ◽  
Convective Activity ◽  
The Impact

This paper investigates the long-term impact of sea ice on global climate using a global sea-ice–ocean general circulation model (OGCM). The sea-ice component involves state-of-the-art dynamics; the ocean component consists of a 3.5° × 3.5° × 11 layer primitive-equation model. Depending on the physical description of sea ice, significant changes are detected in the convective activity, in the hydrographic properties and in the thermohaline circulation of the ocean model. Most of these changes originate in the Southern Ocean, emphasizing the crucial role of sea ice in this marginally stably stratified region of the world's oceans. Specifically, if the effect of brine release is neglected, the deep layers of the Southern Ocean warm up considerably; this is associated with a weakening of the Southern Hemisphere overturning cell. The removal of the commonly used “salinity enhancement” leads to a similar effect. The deep-ocean salinity is almost unaffected in both experiments. Introducing explicit new-ice thickness growth in partially ice-covered gridcells leads to a substantial increase in convective activity, especially in the Southern Ocean, with a concomitant significant cooling and salinification of the deep ocean. Possible mechanisms for the resulting interactions between sea-ice processes and deep-ocean characteristics are suggested.

Sign in / Sign up

Export Citation Format

Share Document