Coastal ocean data assimilation using a multi-scale three-dimensional variational scheme

Verfasser / Beitragende:
[Zhijin Li, James McWilliams, Kayo Ide, John Farrara]
Ort, Verlag, Jahr:
2015
Enthalten in:
Ocean Dynamics, 65/7(2015-07-01), 1001-1015
Format:
Artikel (online)
ID: 605546584
LEADER caa a22 4500
001 605546584
003 CHVBK
005 20210128100941.0
007 cr unu---uuuuu
008 210128e20150701xx s 000 0 eng
024 7 0 |a 10.1007/s10236-015-0850-x  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s10236-015-0850-x 
245 0 0 |a Coastal ocean data assimilation using a multi-scale three-dimensional variational scheme  |h [Elektronische Daten]  |c [Zhijin Li, James McWilliams, Kayo Ide, John Farrara] 
520 3 |a A multi-scale three-dimensional variational scheme (MS-3DVAR) is implemented to improve the effectiveness of the assimilation of both very sparse and high-resolution observations into models with resolutions down to 1 km. The improvements are realized through the use of background error covariances of multi-decorrelation length scales and by reducing the inherent observational representativeness errors. MS-3DVAR is applied to coastal ocean data assimilation to handle the wide range of spatial scales that exist in both the dynamics and observations. In the implementation presented here, the cost function consists of two components for large and small scales, and MS-3DVAR is implemented sequentially from large to small scales. A set of observing system simulation experiments (OSSEs) are performed to illustrate the advantages of MS-3DVAR over conventional 3DVAR in assimilating two of the most common types of observations—sparse vertical profiles and high-resolution surface measurements—simultaneously. One month of results from an operational implementation show that both the analysis error and bias are reduced more effectively when using MS-3DVAR. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Multi-scale data assimilation  |2 nationallicence 
690 7 |a Variational data assimilation  |2 nationallicence 
690 7 |a Fine-resolution model  |2 nationallicence 
690 7 |a Ocean prediction  |2 nationallicence 
690 7 |a Observing system  |2 nationallicence 
690 7 |a Coastal ocean  |2 nationallicence 
700 1 |a Li  |D Zhijin  |u Jet Propulsion Laboratory, California Institute of Technology, M/S 300-323, 4800 Oak Grove Drive, Pasadena, CA, USA  |4 aut 
700 1 |a McWilliams  |D James  |u Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, USA  |4 aut 
700 1 |a Ide  |D Kayo  |u Department of Atmospheric and Oceanic Science, Center for Scientific Computation and Mathematical Modeling, Earth System Science Interdisciplinary Center, Institute for Physical Science and Technology, University of Maryland, College Park, MD, USA  |4 aut 
700 1 |a Farrara  |D John  |u Joint Institute for Regional Earth System Science and Engineering, University of California, Los Angeles, CA, USA  |4 aut 
773 0 |t Ocean Dynamics  |d Springer Berlin Heidelberg  |g 65/7(2015-07-01), 1001-1015  |x 1616-7341  |q 65:7<1001  |1 2015  |2 65  |o 10236 
856 4 0 |u https://doi.org/10.1007/s10236-015-0850-x  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s10236-015-0850-x  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Li  |D Zhijin  |u Jet Propulsion Laboratory, California Institute of Technology, M/S 300-323, 4800 Oak Grove Drive, Pasadena, CA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a McWilliams  |D James  |u Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Ide  |D Kayo  |u Department of Atmospheric and Oceanic Science, Center for Scientific Computation and Mathematical Modeling, Earth System Science Interdisciplinary Center, Institute for Physical Science and Technology, University of Maryland, College Park, MD, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Farrara  |D John  |u Joint Institute for Regional Earth System Science and Engineering, University of California, Los Angeles, CA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Ocean Dynamics  |d Springer Berlin Heidelberg  |g 65/7(2015-07-01), 1001-1015  |x 1616-7341  |q 65:7<1001  |1 2015  |2 65  |o 10236