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Articles 1 - 3 of 3
Full-Text Articles in Physical Sciences and Mathematics
Old Dominion University Climate Change And Sea Level Rise Initiative, Summer Update 2011, Larry P. Atkinson (Editor)
Old Dominion University Climate Change And Sea Level Rise Initiative, Summer Update 2011, Larry P. Atkinson (Editor)
CCSLRI Newsletters
Summer 2011 Newsletter of the Old Dominion University Climate Change and Sea Level Rise Initiative
Reconstructing Sea Level Using Cyclostationary Empirical Orthogonal Functions, B. D. Hamlington, R. R. Leben, R. S. Nerem, W. Han, K.-Y. Kim
Reconstructing Sea Level Using Cyclostationary Empirical Orthogonal Functions, B. D. Hamlington, R. R. Leben, R. S. Nerem, W. Han, K.-Y. Kim
CCPO Publications
Cyclostationary empirical orthogonal functions, derived from satellite altimetry, are combined with historical sea level measurements from tide gauges to reconstruct sea level fields from 1950 through 2009. Previous sea level reconstructions have utilized empirical orthogonal functions as basis functions, but by using cyclostationary empirical orthogonal functions and by addressing other aspects of the reconstruction procedure, an alternative sea level reconstruction can be computed. The procedure introduced here is capable of capturing the annual cycle and El Nio-Southern Oscillation (ENSO) signals back to 1950, with correlations between the reconstructed ENSO signal and common ENSO indices found to be over 0.9. The …
Improving Simulations Of The Upper Ocean By Inclusion Of Surface Waves In The Mellor-Yamada Turbulence Scheme, Chuan Jiang Huang, Fangli Qiao, Zhenya Song, Tal Ezer
Improving Simulations Of The Upper Ocean By Inclusion Of Surface Waves In The Mellor-Yamada Turbulence Scheme, Chuan Jiang Huang, Fangli Qiao, Zhenya Song, Tal Ezer
CCPO Publications
The Mellor-Yamada turbulence closure scheme, used in many ocean circulation models, is often blamed for overly high simulated surface temperature and overly low simulated subsurface temperature in summer due to insufficient vertical mixing. Surface waves can enhance turbulence kinetic energy and mixing of the upper ocean via wave breaking and nonbreaking-wave-turbulence interaction. The influences of wave breaking and wave-turbulence interaction on the Mellor-Yamada scheme and upper ocean thermal structure are examined and compared with each other using one-dimensional and three-dimensional ocean circulation models. Model results show that the wave-turbulence interaction can effectively amend the problem of insufficient mixing in the …