High-Resolution Coupled Ocean-Wave-Atmosphere Prediction of Typhoons and Their Impact on the Upper Ocean

2012 ◽  
Author(s):  
Shouping Wang
Keyword(s):  
High Resolution ◽  
Ocean Wave ◽  
Upper Ocean

scholarly journals The impact of ocean-wave coupling on the upper ocean circulation during storm events

2021 ◽  
Author(s):  
Diego Bruciaferri ◽  
Marina Tonani ◽  
Huw Lewis ◽  
John Siddorn ◽  
Andrew Saulter ◽  
...  
Keyword(s):  
Ocean Circulation ◽  
Ocean Wave ◽  
Upper Ocean ◽  
Storm Events ◽  
Wave Coupling ◽  
The Impact

A High-Resolution, Ocean Wave Gauge Array System

1979 ◽  
Author(s):  
C. Keller ◽  
G. Irani ◽  
R. Chapman
Keyword(s):  
High Resolution ◽  
Ocean Wave

scholarly journals Quasigeostrophic Diagnosis of Mixed Layer Dynamics Embedded in a Mesoscale Turbulent Field

2016 ◽  
Vol 46 (1) ◽  
pp. 275-287 ◽  
Author(s):  
Cédric P. Chavanne ◽  
Patrice Klein
Keyword(s):  
Surface Layer ◽  
High Resolution ◽  
Mixed Layer ◽  
Finite Thickness ◽  
Vertical Mixing ◽  
Three Dimensional ◽  
Upper Ocean ◽  
Surface Mixed Layer ◽  
Deep Interior ◽  
Quasigeostrophic Model

AbstractA quasigeostrophic model is developed to diagnose the three-dimensional circulation, including the vertical velocity, in the upper ocean from high-resolution observations of sea surface height and buoyancy. The formulation for the adiabatic component departs from the classical surface quasigeostrophic framework considered before since it takes into account the stratification within the surface mixed layer that is usually much weaker than that in the ocean interior. To achieve this, the model approximates the ocean with two constant stratification layers: a finite-thickness surface layer (or the mixed layer) and an infinitely deep interior layer. It is shown that the leading-order adiabatic circulation is entirely determined if both the surface streamfunction and buoyancy anomalies are considered. The surface layer further includes a diabatic dynamical contribution. Parameterization of diabatic vertical velocities is based on their restoring impacts of the thermal wind balance that is perturbed by turbulent vertical mixing of momentum and buoyancy. The model skill in reproducing the three-dimensional circulation in the upper ocean from surface data is checked against the output of a high-resolution primitive equation numerical simulation.

Upper-ocean stratification of the NE South China Sea during the last 35 ka: Implications from oxygen isotope records from planktonic foraminifera

2020 ◽  
Author(s):  
Tzu-Chun Wang ◽  
Andrew Tien-Shun Lin ◽  
Horng-Sheng Mii ◽  
Chorng-Shern Horng ◽  
Christophe Colin
Keyword(s):  
High Resolution ◽  
South China Sea ◽  
Oxygen Isotope ◽  
Sediment Core ◽  
South China ◽  
Planktonic Foraminifera ◽  
Upper Ocean ◽  
Freshwater Input ◽  
Ocean Stratification ◽  
China Sea

<p>The sedimentation rate in the northeastern South China Sea (SCS) is high and it therefore offers an opportunity for a high-resolution paleoceanographic study. This study is based on high-resolution AMS <sup>14</sup>C dating on forams and oxygen isotope data of two planktonic foraminifera species (<em>Globigerinoides ruber</em> and <em>Neogloboquadrina dutertrei</em>) from the sediment core, MD18-3568, collected from the northeastern SCS, to reconstruct upper-ocean stratification since 35 ka.</p><p>The marine sediment core MD18-3568 is located on the accretionary wedge off SW Taiwan at a water depth of 1,315 m, the whole core is dominated by hemipelagic sediments and is of 20.7 m in length. Samples for AMS <sup>14</sup>C dating were selected at roughly 2 ka interval with a total of 16 samples. The ages show a continuously younging-upward trend with bottom of this core around 35,000 years BP. Samples for high-resolution oxygen isotope measurements were selected at a nominal 500-year age interval. The difference in δ<sup>18</sup>O between <em>G. ruber</em> (mixed layer dwelling species) and <em>N. dutertrei</em> (thermocline dwelling species) is used to reconstruct the upper ocean stratification with large difference indicating significant ocean stratification and vice versa. The results show moderate upper ocean stratification during 35-24 ka, and it became less stratified during the Last Glacial Maximum (LGM, 23-19 ka). During the deglacial stage, the stratification gradually became stronger until the early Holocene (12-9 ka), and it has kept strong upper-ocean stratification since 9 ka. Literature has documented less rainfall intensity during the LGM and heavy rainfall during the Holocene in southern Taiwan. We interpret the upper-ocean stratification in the NE South China Sea near Taiwan is linked to the amount of freshwater inputs from Taiwan. Less Taiwan freshwater input during the LGM led to a weak stratified upper ocean and a large amount of freshwater input from Taiwan led to a strong upper-ocean stratification during the Holocene.</p>

Analysis of High Resolution Upper Ocean Dye Release Experiments Using Airborne LIDAR

2008 ◽  
Author(s):  
James R. Ledwell ◽  
Eugene A. Terray ◽  
Miles A. Sundermeyer
Keyword(s):  
High Resolution ◽  
Airborne Lidar ◽  
Upper Ocean ◽  
Dye Release
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