Pradhan, Yaswant and Mohan, Mannil and Sengupta, Debasis and Nayak, Shailesh (2005) Radiant heating rates and surface biology during the Arabian Sea Monsoon Experiment. In: Journal of Geophysics and Engineering, 2 (1). pp. 16-22.
Radiometric observations are carried out to estimate the net shortwave solar radiation in the upper ocean during the Arabian Sea Monsoon Experiment Phase II (ARMEX-II). Radiant heating rates in the Arabian Sea Warm Pool (ASWP) region from in situ radiometric measurements are presented for the first time. The estimated shortwave fluxes (300-700nm) from the observed data are 101, 62, 40 and 29 W m(-2) at 10, 20, 30and 40 m depths respectively. About 5% of the surface light reaches below 50 m. Heating of the water column by penetrating solar radiationis substantial and estimated to be 0.18, 0.11, 0.08 and 0.07 degrees Cday(-1) in the upper 10, 20, 30 and 40 m respectively. Simultaneous observations from space-based sensors (SeaWiFS and IRS-P4 Ocean ColourMonitor) show an increase in solar absorption in regions with enhanced concentration of biologically active constituents.
|Item Type:||Journal Article|
|Additional Information:||Copyright for this article belonsg to IOP Publishing Ltd.|
|Keywords:||ARMEX;Arabian Sea Warm Pool;radiant heating rate;chlorophyll|
|Department/Centre:||Division of Mechanical Sciences > Centre for Atmospheric & Oceanic Sciences|
|Date Deposited:||02 Jun 2005|
|Last Modified:||19 Sep 2010 04:19|
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