Gregoire Broquet
University of California, Santa Cruz
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Monthly Weather Review | 2012
Andrew M. Moore; Hernan G. Arango; Gregoire Broquet
AbstractA method is presented in which the adjoint of a four-dimensional variational data assimilation system (4D-Var) was used to compute the expected analysis and forecast error variances of linear functions of the ocean state vector. The power and utility of the approach are demonstrated using the Regional Ocean Modeling System configured for the California Current system. Linear functions of the ocean state vector were considered in the form of indices that characterize various aspects of the coastal upwelling circulation. It was found that for configurations of 4D-Var typically used in ocean models, reliable estimates of the expected analysis error variances can be obtained both for variables that are observed and unobserved. In addition, the contribution of uncertainties in the model control variables to the forecast error variance was also quantified. One particularly powerful and illuminating aspect of the adjoint 4D-Var approach to the forecast problem is that the contribution of individual obser...
Progress in Oceanography | 2011
Andrew M. Moore; Hernan G. Arango; Gregoire Broquet; Brian S. Powell; Anthony Weaver; Javier Zavala-Garay
Progress in Oceanography | 2011
Andrew M. Moore; Hernan G. Arango; Gregoire Broquet; Christopher A. Edwards; Milena Veneziani; Brian S. Powell; D. G. Foley; James D. Doyle; Daniel P. Costa; Patrick W. Robinson
Dynamics of Atmospheres and Oceans | 2009
Gregoire Broquet; Christopher A. Edwards; A.M. Moore; Brian S. Powell; Milena Veneziani; J. D. Doyle
Progress in Oceanography | 2011
Andrew M. Moore; Hernan G. Arango; Gregoire Broquet; Christopher A. Edwards; Milena Veneziani; Brian S. Powell; D. G. Foley; James D. Doyle; Daniel P. Costa; Patrick W. Robinson
Dynamics of Atmospheres and Oceans | 2011
Jerome Fiechter; Gregoire Broquet; Andrew M. Moore; Hernan G. Arango
Archive | 2009
Gregoire Broquet; Andrew M. Moore; Hernan G. Arango; Christopher A. Edwards; Brian S. Powell
Progress in Oceanography | 2015
Kaustubha Raghukumar; Christopher A. Edwards; Nicole L. Goebel; Gregoire Broquet; Milena Veneziani; Andrew M. Moore; Jon P. Zehr
Fuel and Energy Abstracts | 2011
Jerome Fiechter; Gregoire Broquet; Andrew M. Moore; Hernan G. Arango
Archive | 2010
A.M. Moore; Hernan G. Arango; Gregoire Broquet; Christopher Edwards; Marcella Veneziani; Barry Kay Powell