USC&GS: United States Coast and Geodetic Survey. 



USN: United States Navy. 



USWB: United States Weather Bureau. 



VHF: Very high frequency. 



WHOI: Woods Hole Oceanographic Institution. 



WMO: World Meteorological Organization. Established as IMO in 

 1947 and becanne WMO in 1951. Headquarters in Geneva. 

 Supported by dues from member countries. 



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