Sea surface wind perturbations over the Kashevarov Bank of the Okhotsk Sea: a satellite study

• Published in: Annales Geophysicae
• Main Authors: T. I. Tarkhova, M. S. Permyakov, E. Yu. Potalova, V. I. Semykin
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2011
• Subjects: Science; Q; Physics; QC1-999; Geophysics. Cosmic physics; QC801-809; Kashevarov Bank; Okhotsk; okhotsk sea
• Online Access: https://doi.org/10.5194/angeo-29-393-2011; https://doaj.org/article/04205011f92545b494f23ea5ce4d46b6

Sea surface wind perturbations over sea surface temperature (SST) cold anomalies over the Kashevarov Bank (KB) of the Okhotsk Sea are analyzed using satellite (AMSR-E and QuikSCAT) data during the summer-autumn period of 2006–2009. It is shown, that frequency of cases of wind speed decreasing over a cold spot in August–September reaches up to 67%. In the cold spot center SST cold anomalies reached 10.5 °C and wind speed lowered down to ~7 m s −1 relative its value on the periphery. The wind difference between a periphery and a centre of the cold spot is proportional to SST difference with the correlations 0.5 for daily satellite passes data, 0.66 for 3-day mean data and 0.9 for monthly ones. For all types of data the coefficient of proportionality consists of ~0.3 m s −1 on 1 °C.