Three-Dimensional Distribution of Sound Speed in the Iceland-Faeroe Area,Retrieved from a CTD Survey, Thermistor-Chain Measurements and Satellite SST Imagery

摘要

The three-dimensional variability of sound speed in the Iceland-Faeroe Frontal(IFF) region is investigated. Emphasis is placed on the extend to which subsurface sound speed may be determined from space-borne remote sensing. Data from different sources are used: CTD survey and thermistor-chain measurements as ground truth and satellite infrared imagery. From the subsurface data, it is shown that the vertical sound-speed profiles can be decomposed into empirical orthogonal eigenfunctions (EOFs), with the first two already accounting for 97