Results 211 to 220 of about 16,215 (263)
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Ocean Data Assimilation in Support of Climate Applications: Status and Perspectives
Annual Review of Marine Science, 2016Ocean data assimilation brings together observations with known dynamics encapsulated in a circulation model to describe the time-varying ocean circulation. Its applications are manifold, ranging from marine and ecosystem forecasting to climate prediction and studies of the carbon cycle.
Detlef Stammer +2 more
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An ocean data assimilation system in the Indian Ocean and west Pacific Ocean
Advances in Atmospheric Sciences, 2015The development and application of a regional ocean data assimilation system are among the aims of the Global Ocean Data Assimilation Experiment. The ocean data assimilation system in the regions including the Indian and West Pacific oceans is an endeavor motivated by this goal. In this study, we describe the system in detail.
Changxiang Yan, Jiang Zhu, Jiping Xie
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The Bluelink ocean data assimilation system (BODAS)
Ocean Modelling, 2008Abstract Bluelink is Australia’s contribution to the Global Ocean Data Assimilation Experiment (GODAE). The goals of GODAE include the development and application of eddy-resolving, data assimilating ocean forecast systems. In this paper, we describe several aspects of the Bluelink effort that are motivated by this goal.
Peter R Oke +2 more
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Data assimilation in ocean models
Reports on Progress in Physics, 1996This review covers recent advances in applying data assimilation techniques to problems in physical oceanography. The introduction and appendices provide the non-specialist reader with background in ocean circulation and observing methods. The 4D variational assimilation approach is covered in depth showing how model - data misfits can be minimized ...
D L T Anderson, J Sheinbaum, K Haines
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Coastal and Ocean Data Assimilation
2006Abstract : The long range scientific goal of this proposal is to produce optimal estimates of the state space of the ocean, its marginal seas, and coastal zones in order to document, understand, and predict average conditions and variability. This is being accomplished through the use of data assimilation methods for ocean circulation models.
Toshio M. Chin, Arthur J. Mariano
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Balanced Ocean-Data Assimilation near the Equator
Journal of Physical Oceanography, 2002Abstract The question is addressed whether using unbalanced updates in ocean-data assimilation schemes for seasonal forecasting systems can result in a relatively poor simulation of zonal currents. An assimilation scheme, where temperature observations are used for updating only the density field, is compared to a scheme where updates of
Burgers, G. +4 more
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Mapping and pseudoinverse algorithms for ocean data assimilation
IEEE Transactions on Geoscience and Remote Sensing, 2003Among existing ocean data assimilation methodologies, reduced-state Kalman filters are a widely studied compromise between resolution, optimality, error specification, and computational feasibility. In such reduced-state filters, the measurement update takes place on a coarser grid than that of the general circulation model (GCM); therefore, these ...
Paul W. Fieguth +2 more
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A Global Oceanic Data Assimilation System
Journal of Physical Oceanography, 1989Abstract A global oceanic four-dimensional data assimilation system has been developed for use in initializing coupled ocean–atmosphere general circulation models and many other applications. The data assimilation system uses a high resolution global ocean model to extrapolate the information forward in time.
John Derber, Anthony Rosati
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Assimilation of Altimeter Data into Ocean Models
Journal of Physical Oceanography, 1986Abstract The problem of assimilating satellite altimeter data into an ocean model is considered for the case in which the ocean currents are weak, so that they can be represented by a superposition of linear Rossby waves, and the altimeter measurements are exact and available everywhere.
D. J. Webb, A. Moore
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2010
The oceans form a key component of the Earth’s weather and climate system. As well as being important to forecast in their own right to facilitate human activities, such as shipping, fishing, drilling for oil and coastline management and leisure, it is thought that an active ocean model is necessary for all atmospheric predictions on time-scales of a ...
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The oceans form a key component of the Earth’s weather and climate system. As well as being important to forecast in their own right to facilitate human activities, such as shipping, fishing, drilling for oil and coastline management and leisure, it is thought that an active ocean model is necessary for all atmospheric predictions on time-scales of a ...
openaire +1 more source