Sea surface height of the China adjacent seas from a variable-grid global ocean circulation model

Author(s):  
Zhan Lian ◽  
Zexun Wei ◽  
Yonggang Wang ◽  
Guohong Fang
2006 ◽  
Vol 56 (5-6) ◽  
pp. 543-567 ◽  
Author(s):  
Barnier Bernard ◽  
Gurvan Madec ◽  
Thierry Penduff ◽  
Jean-Marc Molines ◽  
Anne-Marie Treguier ◽  
...  

2012 ◽  
Vol 117 (C10) ◽  
pp. n/a-n/a ◽  
Author(s):  
J. F. Shriver ◽  
B. K. Arbic ◽  
J. G. Richman ◽  
R. D. Ray ◽  
E. J. Metzger ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tom M. George ◽  
Georgy E. Manucharyan ◽  
Andrew F. Thompson

AbstractMesoscale eddies have strong signatures in sea surface height (SSH) anomalies that are measured globally through satellite altimetry. However, monitoring the transport of heat associated with these eddies and its impact on the global ocean circulation remains difficult as it requires simultaneous observations of upper-ocean velocity fields and interior temperature and density properties. Here we demonstrate that for quasigeostrophic baroclinic turbulence the eddy patterns in SSH snapshots alone contain sufficient information to estimate the eddy heat fluxes. We use simulations of baroclinic turbulence for the supervised learning of a deep Convolutional Neural Network (CNN) to predict up to 64% of eddy heat flux variance. CNNs also significantly outperform other conventional data-driven techniques. Our results suggest that deep CNNs could provide an effective pathway towards an operational monitoring of eddy heat fluxes using satellite altimetry and other remote sensing products.


2021 ◽  
Author(s):  
Martin Butzin ◽  
Dmitry Sidorenko ◽  
Peter Köhler

<p>We have implemented <sup>14</sup>C and further abiotic tracers (<sup>39</sup>Ar, CFC-12, and SF<sub>6</sub>) into the state-of-the-art ocean circulation model FESOM2. Different to other global ocean circulation models, FESOM2 employs unstructured meshes with variable horizontal resolution. This approach allows for improvements in areas which are commonly poorly resolved in global ocean modelling studies such as upwelling regions, while keeping the overall computational costs still sufficiently moderate. Here, we present results of a transient simulation running from 1850-2015 CE tracing the evolution of the bomb radiocarbon pulse with a focus on the evolution of marine radiocarbon ages. In addition we explore the potential of <sup>39</sup>Argon to complement <sup>14</sup>C dating of marine waters.</p>


Sign in / Sign up

Export Citation Format

Share Document