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Improved ocean analysis for the Indian Ocean
Ministry of Earth Sciences (MoES), Hyderabad, India; Novosibirsk State University, Novosibirsk, Russia. (LUVAL)ORCID iD: 0000-0001-7771-1693
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2019 (English)In: Journal of operational oceanography. Publisher: The Institute of Marine Engineering, Science & Technology, ISSN 1755-876X, E-ISSN 1755-8778, Vol. 12, no 1, p. 16-33Article in journal (Refereed) Published
Abstract [en]

The National Centers for Environmental Prediction (NCEP) and the Indian National Centre for Ocean Information Services (INCOIS) produce global ocean analyses based on the Global Ocean Data Assimilation System (GODAS). This system uses a state of the art ocean general circulation model named moduler ocean model (MOM) and the 3D-Variational (3DVar) data assimilation technique. In this study we have evaluated the INCOIS-GODAS operational analysis products with an upgrade of the physical model from MOM4p0d to MOM4p1. Two experiments were performed with same atmospheric forcing fields:(i) using MOM4p0d (GODAS_p0), and (ii) using MOM4p1 (GODAS_p1). Observed temperature and salinity profiles were assimilated in both experiments. Validation with independent observations show improvement of sea surface temperature(SST), sea surface salinity (SSS) and surface currents in the new analysis GODAS_p1 as compared to the old analysis GODAS_p0.

Place, publisher, year, edition, pages
Taylor & Francis , 2019. Vol. 12, no 1, p. 16-33
National Category
Oceanography, Hydrology and Water Resources
Identifiers
URN: urn:nbn:se:uu:diva-367708DOI: 10.1080/1755876X.2018.1547261ISI: 000456811900002OAI: oai:DiVA.org:uu-367708DiVA, id: diva2:1267248
Available from: 2018-11-30 Created: 2018-11-30 Last updated: 2019-08-20Bibliographically approved

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Thandlam, Venugopal

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