Growth and decay of the Arabian Sea mini warm pool during May 2000: Observations and simulations

Oceanographic surveys were carried out in the southeastern Arabian Sea in two phases during 14–17 May and 23–27 May 2000 to study the evolution of the Arabian Sea mini warm pool. The hydrographic data collected during these experiments, satellite imagery of sea surface temperature for the correspond...

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Veröffentlicht in:Deep-sea research. Part I, Oceanographic research papers Oceanographic research papers, 2009-04, Vol.56 (4), p.528-540
Hauptverfasser: Hareesh Kumar, P.V., Joshi, Madhu, Sanilkumar, K.V., Rao, A.D., Anand, P., Anil Kumar, K., Prasada Rao, C.V.K.
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container_title Deep-sea research. Part I, Oceanographic research papers
container_volume 56
creator Hareesh Kumar, P.V.
Joshi, Madhu
Sanilkumar, K.V.
Rao, A.D.
Anand, P.
Anil Kumar, K.
Prasada Rao, C.V.K.
description Oceanographic surveys were carried out in the southeastern Arabian Sea in two phases during 14–17 May and 23–27 May 2000 to study the evolution of the Arabian Sea mini warm pool. The hydrographic data collected during these experiments, satellite imagery of sea surface temperature for the corresponding period and ship drift data were utilized for this purpose. Both satellite and in situ observations indicated the presence of a mini warm pool up to 14 May and its dissipation thereafter. The Arabian Sea mini warm pool region was characterized by low-salinity Bay of Bengal water (
doi_str_mv 10.1016/j.dsr.2008.12.004
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The hydrographic data collected during these experiments, satellite imagery of sea surface temperature for the corresponding period and ship drift data were utilized for this purpose. Both satellite and in situ observations indicated the presence of a mini warm pool up to 14 May and its dissipation thereafter. The Arabian Sea mini warm pool region was characterized by low-salinity Bay of Bengal water (&lt;22 sigma- t). This watermass was advected into the southeastern Arabian Sea by the East India Coastal Current mainly during November–January and recirculated in this region in an anticyclonic eddy. Immediately after the dissipation of the mini warm pool, this watermass could not be traced in this region. Simulation of mini warm pool characteristics using the Princeton Ocean Model (POM) agreed well with in situ and satellite observations. Moreover, the model showed strengthening of southerly currents in the warm pool region during its dissipation period, which caused the disappearance of the Bay of Bengal watermass. Specific experiments with the POM revealed the significance of heat flux components, low wind speed and salinity stratification in the formation and sustenance of the mini warm pool.</description><identifier>ISSN: 0967-0637</identifier><identifier>EISSN: 1879-0119</identifier><identifier>DOI: 10.1016/j.dsr.2008.12.004</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Advection ; Arabian Sea mini warm pool ; Dynamics of the ocean (upper and deep oceans) ; Earth, ocean, space ; Exact sciences and technology ; External geophysics ; Heat flux ; Hydrography ; Marine ; Numerical model ; Oceanography ; Oceans ; Physics of the oceans ; Simulation ; Studies ; Watermass ; Western disturbance</subject><ispartof>Deep-sea research. 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Simulation of mini warm pool characteristics using the Princeton Ocean Model (POM) agreed well with in situ and satellite observations. Moreover, the model showed strengthening of southerly currents in the warm pool region during its dissipation period, which caused the disappearance of the Bay of Bengal watermass. 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subjects Advection
Arabian Sea mini warm pool
Dynamics of the ocean (upper and deep oceans)
Earth, ocean, space
Exact sciences and technology
External geophysics
Heat flux
Hydrography
Marine
Numerical model
Oceanography
Oceans
Physics of the oceans
Simulation
Studies
Watermass
Western disturbance
title Growth and decay of the Arabian Sea mini warm pool during May 2000: Observations and simulations
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