Author: Kevin E. Trenberth
Publisher:
ISBN:
Category : Dynamic climatology
Languages : en
Pages : 104

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 10

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Interannual and climatological variations of wind stress drag coefficient are examined over the global ocean from 1998 to 2004. Here CD is calculated using high temporal resolution (3- and 6-hourly) surface atmospheric variables from two datasets: 1)the 40-yr European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA-40) and 2) the Navy Operational Global Atmospheric Prediction System. The stability-dependent CD algorithm applied to both datasets gives almost identical values over most of the global ocean, confirming the validity of results. Overall, major findings of this paper are as follows: 1) the CD value can change significantly (e.g, greater than 50%) on 12-hourly time scales around the Kuroshio and Gulf Stream current systems: 2) there is strong seasonal variability in CD, but there is not much interannual change in the spatial variability for a given month; 3) a global mean Cd ~ 1.25 x 10-3 is found in all months, while CD is less than or equal to 1.5 x 10-3 is prevalent over the North Pacific and North Atlantic Oceans and in southern high-latitude regions as well. and CD is less than or equal to 1.0 x 10-3 is typical in the eastern equatorial Pacific cold tongue; and 4) including the effects of air-sea stability on CD generally causes an increase of less than 20% in comparison to the one calculated based on neutral conditions in the tropical regions. Finally, spatially and temporally varying CD fields are therefore needed for a variety of climate and air-sea interaction studies.

Author:
Publisher:
ISBN:
Category : Climatic changes
Languages : en
Pages : 150

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Author: Simon A. Josey
Publisher:
ISBN:
Category :
Languages : en
Pages : 27

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Author: Dennis Joseph Shea
Publisher:
ISBN:
Category : Climatology
Languages : en
Pages : 178

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Author: Artem S. Sarkisyan
Publisher: Springer Science & Business Media
ISBN: 1402092083
Category : Science
Languages : en
Pages : 385

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Book Description
In this wide-ranging and comprehensive review of the historical development and current status of ocean circulation models, the analysis extends from simple analytical approaches to the latest high-resolution numerical models with data assimilation. The authors, both of whom are pioneer scientists in ocean and shelf sea modelling, look back at the evolution of Western and Eastern modelling methodologies during the second half of the last century. They also present the very latest information on ocean climate modelling and offer examples for a number of oceans and shelf seas. The book includes a critical analysis of literature on ocean climate variability modelling, as well as assessing the strengths and weaknesses of the best-known modelling techniques. It also anticipates future developments in the field, focusing on models based on a synthesis of numerical simulation and field observation, and on nonlinear thermodynamic model data synthesis.

Author: Y.-J. Han
Publisher:
ISBN:
Category : Climatology
Languages : en
Pages : 148

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Author: Edwin K. Schneider
Publisher:
ISBN:
Category : Ocean-atmosphere interaction
Languages : en
Pages : 574

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Author: Brian Hoskins
Publisher:
ISBN:
Category : Atmospheric circulation
Languages : en
Pages : 244

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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704

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