Articles | Volume 29, issue 2
https://doi.org/10.5194/angeo-29-393-2011
https://doi.org/10.5194/angeo-29-393-2011
22 Feb 2011
 | 22 Feb 2011

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

T. I. Tarkhova, M. S. Permyakov, E. Yu. Potalova, and V. I. Semykin

Abstract. 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.

Download