A dual assimilation system for satellite altimetry
A dual assimilation system for satellite altimetry
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发表时间:
2000-11
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通讯作者:
I. Fukumori;T. Lee;D. Menemnlis;L. Fu;B. Cheng;B. Tang;Z. Xing;R. Giering
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作者:
I. Fukumori;T. Lee;D. Menemnlis;L. Fu;B. Cheng;B. Tang;Z. Xing;R. Giering
month (1 = Jan 1996) Ta TaA TaE TaZ A Dual Assimilation System for Satellite Altimetry I.Fukumori, T.Lee, D.Menemenlis, L.Fu, B.Cheng, B.Tang, Z.Xing, M.Nakamura (JPL) and R.Giering (FastOpt) ABSTRACT Progress has been made in implementing a complimentary, dual data assimilation system for estimating the time−evolving ocean circulation. The system consists of a "cellular" Kalman filter that provides error estimates and a means for routine analyses, and the adjoint method that is used for parameter estimation and rigorous reanalyses. The model is based on the MIT GCM and is global with a reasonably high resolution (∆z=10m, ∆y=1/3°; 360×224×46) and advanced mixing schemes (GM & KPP). TOPEX/POSEIDON data are assimilated together with Levitus climatology and NCEP flux estimates.