Numerical simulation of cut-off lows on the Australian east coast: Sensitivity to sea-surface temperature

1992 ◽  
Vol 12 (8) ◽  
pp. 783-795 ◽  
Author(s):  
Kathleen L. McInnes ◽  
Lance M. Leslie ◽  
John L. McBride
Keyword(s):  
Numerical Simulation ◽  
Surface Temperature ◽  
Sea Surface Temperature ◽  
East Coast ◽  
Sea Surface

scholarly journals Numerical Simulation of Heavy Rainfall in August 2014 over Japan and Analysis of Its Sensitivity to Sea Surface Temperature

Atmosphere ◽  
2018 ◽  
Vol 9 (3) ◽  
pp. 84 ◽  
Author(s):  
Yuki Minamiguchi ◽  
Hikari Shimadera ◽  
Tomohito Matsuo ◽  
Akira Kondo
Keyword(s):  
Numerical Simulation ◽  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Heavy Rainfall ◽  
Sea Surface

Long-Term Variations of the Sea Surface Temperature in the East Coast of Korea

2014 ◽  
Vol 20 (6) ◽  
pp. 601-608 ◽  
Author(s):  
Sang-Woo Kim ◽  
◽  
Jin-Wook Im ◽  
Byung-Sun Yoon ◽  
Hee-Dong Jeong ◽  
...  
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
East Coast ◽  
Sea Surface ◽  
Long Term Variations

Numerical simulation of the wave-induced Stokes drift effect on sea surface temperature in the North Pacific

2019 ◽  
Vol 48 (4) ◽  
pp. 381-403
Author(s):  
Jingdong Liu ◽  
Jian Shi ◽  
Wenjing Zhang
Keyword(s):  
Numerical Simulation ◽  
Surface Temperature ◽  
Sea Surface Temperature ◽  
North Pacific ◽  
Sea Surface ◽  
Stokes Drift ◽  
Parameterization Scheme ◽  
The North ◽  
Wave Induced ◽  
The North Pacific

Abstract The effect of the wave-induced Stokes drift is not taken into account in traditional ocean circulation models used for SST simulations. The spectral parameterization scheme is considered to be the most accurate of the wave-induced Stokes drift calculation schemes. The numerical simulation results of sea surface temperature (SST) with the Stokes drift and SST without the Stokes drift in the North Pacific in 2014 were analyzed. The Stokes drift plays a cooling role in the North Pacific, and the most affected areas are high-latitude sea areas. The following factors are responsible for cooling: the seawater divergence caused by Stokes transport, changes in the sea surface current field caused by the Coriolis-Stokes force and the effects of turbulence caused by Langmuir circulation. The simulation of the vertical temperature profile in the mixed layer is improved when the Stokes drift is accounted for. The simulated results of SST using the Stokes drift approximate parameterization schemes and the spectral parameterization scheme are compared. The results confirm that the spectral parameterization scheme can be used for accurate SST simulation, and the Phillips spectrum approximate parameterization scheme is the best among the approximate parameterization schemes.

scholarly journals Sea level pressure response to the specification of eddy-resolving sea surface temperature in simulations of Australian east coast lows

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Christopher R S Chambers ◽  
Gary B Brassington ◽  
Jinyu Sheng ◽  
Ian Simmonds ◽  
Kevin Walsh
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Sea Level ◽  
Time Scales ◽  
East Coast ◽  
Low Pressure ◽  
Sea Surface ◽  
Pressure System ◽  
Sea Level Pressure ◽  
Level Pressure

Four east coast lows (ECLs) were simulated with the Weather Research and Forecast model to investigate the influence of the sea surface temperature (SST) distribution on the sea level pressure (SLP). Each ECL was simulated with two different SST datasets: the Bluelink SST field and NCEP skin temperature field. The former resolved eddies in the East Australian Current while the latter did not. The simulated SLP fields in the eddy-resolving SST runs were compared with those in the non-eddy-resolving SST runs. On time-scales of about 48 hours, higher SSTs were asso-ciated with lower SLPs. The spatial scale of the SLP response was similar to that of the ocean eddies, indicative of the rapidity and robustness of the response given the rapidly evolving conditions within the storms. On shorter time-scales, the SLP response to SST change can become substantially larger. The largest reductions in SLP in the eddy-resolving SST runs were associated with regions of deep atmospheric convection that warm the tropospheric column. These areas were shown to be related to the SST distribution with the greatest SLP reductions associated with convection over strong SST gradient regions. The landfall of a damaging convective mesoscale low pressure system on 8 June 2007 was also investigated. It was found that a region of strong SST gradients on the southern flank of a large warm ocean eddy was associated with lower pressures at the time of formation of this meso-low. In addition, the only case that simulated the low pressure at the correct time (albeit at not quite the correct location) was the eddy-resolved SST run. It was hy-pothesized that the development of this meso-low that impacted the coast around Newcastle, was enhanced because of the eddy-scale SST distribution at the time.

scholarly journals Long-Term Sea Surface Temperature Variability along the U.S. East Coast

2010 ◽  
Vol 40 (5) ◽  
pp. 1004-1017 ◽  
Author(s):  
R. Kipp Shearman ◽  
Steven J. Lentz
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
East Coast ◽  
Atmospheric Temperature ◽  
Coastal Ocean ◽  
Temperature Trend ◽  
Sea Surface ◽  
Temperature Trends ◽  
Cape Hatteras

Abstract Sea surface temperature variations along the entire U.S. East Coast from 1875 to 2007 are characterized using a collection of historical observations from lighthouses and lightships combined with recent buoy and shore-based measurements. Long-term coastal temperature trends are warming in the Gulf of Maine [1.0° ± 0.3°C (100 yr)−1] and Middle Atlantic Bight [0.7° ± 0.3°C (100 yr)−1], whereas trends are weakly cooling or not significant in the South Atlantic Bight [−0.1° ± 0.3°C (100 yr)−1] and off Florida [−0.3° ± 0.2°C (100 yr)−1]. Over the last century, temperatures along the northeastern U.S. coast have warmed at a rate 1.8–2.5 times the regional atmospheric temperature trend but are comparable to warming rates for the Arctic and Labrador, the source of coastal ocean waters north of Cape Hatteras (36°N). South of Cape Hatteras, coastal ocean temperature trends match the regional atmospheric temperature trend. The observations and a simple model show that along-shelf transport, associated with the mean coastal current system running from Labrador to Cape Hatteras, is the mechanism controlling long-term temperature changes for this region and not the local air–sea exchange of heat.

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