Detecting slicks in the Irish Sea determined from different satellite sensors.
Robert Potter(1) , Gay Mitchelson-Jacob(1) , David Woolf(2) , and Susanne fangohr(2)
University of Wales Bangor,
Menai Bridge, LL595AB,
(2) University of Southampton, NOC, Southampton, SO143ZH, United Kingdom
This work is part of the Centre for Air-Sea Interactions and fluXes (CASIX) project to understand the fate of anthropogenic CO2 flux uptake by the oceans in the presence of biogenic and man-made slicks. The main objective is to determine a slick climatology for the North Atlantic Ocean. However, we initially examine the available TOPEX-Poseidon measurements 2002 to 2004, and make comparisons with available ENVISAT ASAR data (ESA Category-1 proposal C1P-3210) in the Irish Sea. Slick measurements from altimetry are subject to limitations in association with the proximity of coastal regions and the satellite space –time sampling. By comparing along track altimeter differential mean square slope with calibrated ASAR data we look for a match up between the different slick measurements. The limited temporal and spatial period and resolution of the different satellite data make observation of slicks and their validation difficult. Nether-the-less, our main aim is to understand processes that effect slick formation and evolution, that subsequently influence the rate of CO2 flux absorbed by the ocean.