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This volume explores and evaluates the development, multiple applications, and usefulness of four-dimensional (space and time) model assimilations of data in the atmospheric and oceanographic sciences and projects their applicability to the earth sciences as a whole. Using the predictive power of geophysical laws incorporated in the general circulation model to produce a background field for comparison with incoming raw observations, the model assimilation process synthesizes diverse, temporarily inconsistent, and spatially incomplete observations from worldwide land, sea, and space data acquisition systems into a coherent representation of an evolving earth system. The book concludes that this subdiscipline is fundamental to the geophysical sciences and presents a basic strategy to extend the application of this subdiscipline to the earth sciences as a whole.
Book Synopsis Four-Dimensional Model Assimilation of Data by : National Research Council
Download or read book Four-Dimensional Model Assimilation of Data written by National Research Council and published by National Academies Press. This book was released on 1991-02-01 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume explores and evaluates the development, multiple applications, and usefulness of four-dimensional (space and time) model assimilations of data in the atmospheric and oceanographic sciences and projects their applicability to the earth sciences as a whole. Using the predictive power of geophysical laws incorporated in the general circulation model to produce a background field for comparison with incoming raw observations, the model assimilation process synthesizes diverse, temporarily inconsistent, and spatially incomplete observations from worldwide land, sea, and space data acquisition systems into a coherent representation of an evolving earth system. The book concludes that this subdiscipline is fundamental to the geophysical sciences and presents a basic strategy to extend the application of this subdiscipline to the earth sciences as a whole.
Book Synopsis Four Dimensional Data Assimilation by : L. Bengtsson
Download or read book Four Dimensional Data Assimilation written by L. Bengtsson and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Accounting for Model Error in Four-dimensional Variational Data Assimilation by : Katherine E. Howes
Download or read book Accounting for Model Error in Four-dimensional Variational Data Assimilation written by Katherine E. Howes and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Four-dimensional Variational Data Assimilation for a Limited Area Model by : Xiang-Yu Huang
Download or read book Four-dimensional Variational Data Assimilation for a Limited Area Model written by Xiang-Yu Huang and published by . This book was released on 2002 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Four-dimensional Data Assimilation with a Wide Range of Scales by : Monique Tanguay
Download or read book Four-dimensional Data Assimilation with a Wide Range of Scales written by Monique Tanguay and published by . This book was released on 1995 with total page 997 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Variational Four-dimensional Assimilation of Analyses Using Filtered Models as Constraints by : John Charles Derber
Download or read book The Variational Four-dimensional Assimilation of Analyses Using Filtered Models as Constraints written by John Charles Derber and published by . This book was released on 1985 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Four-dimensional Data Assimilation Method for Air Quality Modeling by : Alberto Mendoza Dominguez
Download or read book A Four-dimensional Data Assimilation Method for Air Quality Modeling written by Alberto Mendoza Dominguez and published by . This book was released on 2000 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
This is the final technical report for the project entitled: "High-Performance Computing and Four-Dimensional Data Assimilation: The Impact on Future and Current Problems", funded at NPAC by the DAO at NASA/GSFC. First, the motivation for the project is given in the introductory section, followed by the executive summary of major accomplishments and the list of project-related publications. Detailed analysis and description of research results is given in subsequent chapters and in the Appendix. Makivic, Miloje S. Goddard Space Flight Center...
Book Synopsis High-Performance Computing and Four-Dimensional Data Assimilation by : National Aeronautics and Space Administration (NASA)
Download or read book High-Performance Computing and Four-Dimensional Data Assimilation written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-08 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the final technical report for the project entitled: "High-Performance Computing and Four-Dimensional Data Assimilation: The Impact on Future and Current Problems", funded at NPAC by the DAO at NASA/GSFC. First, the motivation for the project is given in the introductory section, followed by the executive summary of major accomplishments and the list of project-related publications. Detailed analysis and description of research results is given in subsequent chapters and in the Appendix. Makivic, Miloje S. Goddard Space Flight Center...
Book Synopsis HIGH-PERFORMANCE COMPUTING AND FOUR-DIMENSIONAL DATA ASSIMILATION: THE IMPACT ON FUTURE AND CURRENT PROBLEMS FINAL REPORT... NASA/CR-96-2067 by :
Download or read book HIGH-PERFORMANCE COMPUTING AND FOUR-DIMENSIONAL DATA ASSIMILATION: THE IMPACT ON FUTURE AND CURRENT PROBLEMS FINAL REPORT... NASA/CR-96-2067 written by and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
The estimation of oceanic environmental and acoustical fields is considered as a single coupled data assimilation problem. The four-dimensional data assimilation methodology employed is Error Subspace Statistical Estimation. Environmental fields and their dominant uncertainties are predicted by an ocean dynamical model and transferred to acoustical fields and uncertainties by an acoustic propagation model. The resulting coupled dominant uncertainties define the error subspace. The available physical and acoustical data are then assimilated into the predicted fields in accord with the error subspace and all data uncertainties. The criterion for data assimilation is presently to correct the predicted fields such that the total error variance in the error subspace is minimized. The approach is exemplified for the New England continental shelfbreak region, using data collected during the 1996 Shelfbreak Primer Experiment. The methodology is discussed, computational issues are outlined and the assimilation of model-simulated acoustical data is carried out. Results are encouraging and provide some insights into the dominant variability and uncertainty properties of acoustical fields.
Book Synopsis Four-Dimensional Data Assimilation for Coupled Physical-Acoustical Fields by :
Download or read book Four-Dimensional Data Assimilation for Coupled Physical-Acoustical Fields written by and published by . This book was released on 2002 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The estimation of oceanic environmental and acoustical fields is considered as a single coupled data assimilation problem. The four-dimensional data assimilation methodology employed is Error Subspace Statistical Estimation. Environmental fields and their dominant uncertainties are predicted by an ocean dynamical model and transferred to acoustical fields and uncertainties by an acoustic propagation model. The resulting coupled dominant uncertainties define the error subspace. The available physical and acoustical data are then assimilated into the predicted fields in accord with the error subspace and all data uncertainties. The criterion for data assimilation is presently to correct the predicted fields such that the total error variance in the error subspace is minimized. The approach is exemplified for the New England continental shelfbreak region, using data collected during the 1996 Shelfbreak Primer Experiment. The methodology is discussed, computational issues are outlined and the assimilation of model-simulated acoustical data is carried out. Results are encouraging and provide some insights into the dominant variability and uncertainty properties of acoustical fields.
