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The Mean Wind Structure over Bahrein and Aden in 1962

A. H. GordonUniversity of Hawaii, Honolulu

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Abstract

The mean upper wind structure over Bahrein and Aden in 1962 is studied. Patterns of the zonal and meridional wind speed components are presented. Eddy and advective fluxes of the momentum are calculated and mean annual height profiles drawn for both stations. The transport of momentum by synoptic scale eddies is more important at Bahrein than at Aden. Transport of momentum by the local mean meridional wind is larger in magnitude and fluctuates in an irregular way from month to month at both stations. The vertical integral of the momentum suggests export of relative momentum from the Bahrein-Aden sector in winter and import in summer. These conclusions are supported by 1963 data from the Ahmadabad-Madras sector. In the belt of latitude considered the winter surface winds have an easterly component and gain momentum from the earth while the summer surface winds have a westerly component and lose momentum to the earth. The results of the short period analysis for the sectors studied suggest broad agreement with the synoptic climatology of the region.

Abstract

The mean upper wind structure over Bahrein and Aden in 1962 is studied. Patterns of the zonal and meridional wind speed components are presented. Eddy and advective fluxes of the momentum are calculated and mean annual height profiles drawn for both stations. The transport of momentum by synoptic scale eddies is more important at Bahrein than at Aden. Transport of momentum by the local mean meridional wind is larger in magnitude and fluctuates in an irregular way from month to month at both stations. The vertical integral of the momentum suggests export of relative momentum from the Bahrein-Aden sector in winter and import in summer. These conclusions are supported by 1963 data from the Ahmadabad-Madras sector. In the belt of latitude considered the winter surface winds have an easterly component and gain momentum from the earth while the summer surface winds have a westerly component and lose momentum to the earth. The results of the short period analysis for the sectors studied suggest broad agreement with the synoptic climatology of the region.

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