caa a22 4500 46793794X CHVBK 20180406153003.0 cr unu---uuuuu 170328e20060801xx s 000 0 eng 10.1007/s00703-005-0152-9 doi (NATIONALLICENCE)springer-10.1007/s00703-005-0152-9 4D-variational assimilation over the Bay of Bengal using the Adjoint of a Variable Resolution Global Ocean Model [Elektronische Daten] [S. K. Deb, H. C. Upadhyaya, O. P. Sharma] Summary: The adjoint technique has been widely used over the last two decades in applications involving the dynamics of the Atmosphere and Ocean. This present study applies this technique in the assimilation of oceanic parameters such as temperature and net-surface heat flux, in a variable resolution Ocean General Circulation Model (OGCM). The National Center for Environmental Prediction (NCEP) 1999 July-August global data (sea-surface temperature and derived surface heat flux) and vertical temperature profiles collected from ORV Sagar Kanya and INS Sagardhwani during the Bay of Bengal Monsoon Experiment (BOBMEX 1999) are used for assimilation over the Bay of Bengal. The net-surface heat flux and temperature obtained after assimilation show good agreement with their respective seasonal patterns over the whole Indian Ocean, though there are some differences in the numerical values of heat fluxes. The vertical profiles of temperature after assimilation over the Bay of Bengal show strong resemblance with the corresponding ship observations, emphasizing the importance of the adjoint technique in ocean data assimilation. Springer-Verlag, 2006 Deb S. K. Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India aut Upadhyaya H. C. Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India aut Sharma O. P. Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India aut Meteorology and Atmospheric Physics Springer-Verlag 93/3-4(2006-08-01), 129-145 0177-7971 93:3-4<129 2006 93 703 https://doi.org/10.1007/s00703-005-0152-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00703-005-0152-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Deb S. K. Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India aut NATIONALLICENCE 700 1- Upadhyaya H. C. Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India aut NATIONALLICENCE 700 1- Sharma O. P. Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India aut NATIONALLICENCE 773 0- Meteorology and Atmospheric Physics Springer-Verlag 93/3-4(2006-08-01), 129-145 0177-7971 93:3-4<129 2006 93 703 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer