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Ocean Circulation and Climate
Carl WunschPatrick Heimbach
其他書名
Chapter 21. Dynamically and Kinematically Consistent Global Ocean Circulation and Ice State Estimates
出版Elsevier Inc. Chapters, 2013-10-22
主題Science / Earth Sciences / GeneralScience / Earth Sciences / Meteorology & ClimatologyScience / Physics / GeophysicsBusiness & Economics / Economics / MicroeconomicsScience / Environmental ScienceScience / Earth Sciences / Oceanography
ISBN01280587069780128058701
URLhttp://books.google.com.hk/books?id=7w51DAAAQBAJ&hl=&source=gbs_api
EBookSAMPLE
註釋The World Ocean Circulation Experiment drove the development of estimates of the decadal scale time evolving general circulation that are dynamically and kinematically consistent. A long timescale, and a goal of estimation rather than prediction, preclude the use of meteorological methods called “data assimilation (DA).” Instead, “state estimation” methods are reviewed here and distinguished from DA. Results from the dynamically consistent family of solutions from the project Estimating the Circulation and Climate of the Ocean based upon least-squares Lagrange multipliers (adjoints) are used to discuss the determination of the dominant elements of the circulation in the period since 1992—which marked the beginning of the satellite altimetric record. Significant changes documented in the Arctic in recent decades now mandate consideration of the coupled ocean-cryospheric state.