Open Access Digital Repository of Ministry of Earth Sciences, Government of India

On the warm pool dynamics in the southeastern Arabian Sea during April - May 2005 based on the satellite remote sensing and ARGO float data

Murty, VSN and Krishna, SM and Nagaraju, A and Somayajulu, YK and Babu, VR and Sengupta, D and Sindu, PR and Ravichandran, M and Rajesh, G (2006) On the warm pool dynamics in the southeastern Arabian Sea during April - May 2005 based on the satellite remote sensing and ARGO float data. In: Remote Sensing of the Marine Environment, November 13, 2006, Goa, India.

[img]
Preview
PDF
On the warm pool dynamics.pdf - Published Version

Download (2MB) | Preview

Abstract

Observational data from the Arabian Sea Monsoon Experiment (ARMEX-Phase IIA) in the southeastern Arabian Sea (SEAS) showed intense warming with the SST up to 31.5°C during April-May 2005. Analysis of 5-day repeat cycles of temperature and salinity profiles from an ARGO float (ID No. 2900345) in a 3°x1° box closer to ARMEX-II buoy (8.3°N, 72.68°E) in the SEAS during January-September 2005 revealed evolution of warm pool (SST>28°C) in spring 2005. The Argo data derived D20 (depth of 20°C isotherm) showed the influence of remote forcing during January-May, and local wind forcing during southwest monsoon. Low salinity waters (<34.0) occupied the top 30 m during January-February followed by temperature inversions (up to 0.5°C) in the 30-60 m depth range. From the peak spring warming, the SST dropped gradually by 3.5°C by end-July with the advent of southwest monsoon followed by a decrease in net heat gain upto 100 W/m^2. The merged weekly products of sea surface height anomalies and the NLOM simulated surface currents showed complex surface circulation consisting of seasonal Lakshadweep High/Low in winter/summer. The examined oceanic and atmospheric variables showed an intraseasonal variability with 41 to 63 day period, coinciding with the Madden-Julian Oscillation

Item Type: Conference or Workshop Item (Paper)
Additional Information: Copyright of this article belongs to The International Society for Optical Engineering.
Subjects: Oceanography > oceanography
Depositing User: INCOIS Library
Date Deposited: 19 Dec 2013 08:19
Last Modified: 19 Dec 2013 08:19
URI: http://moeseprints.incois.gov.in/id/eprint/90

Actions (login required)

View Item View Item