Weather buoy tropical Pacific Ocean helped study the El Niño-Southern Oscillation. Moored weather buoys range from in diameter, while drifting buoys are smaller, with diameters of . Drifting buoys are the dominant form of weather buoy in sheer number, with 1250 located worldwide. Wind data from buoys has smaller error than that from ships. There are differences in the values of sea surface temperature measurements between the two platforms as well, relating to the depth of the measurement and whether or not the water is heated by the ship which measures the quantity. The first known proposal for surface weather observations at
Central Weather Bureau sea for shipping, fisheries, tourism and other interested parties. Variables including wave height, tides, sea level variations, sea surface temperature, and ocean currents are measured to provide an accurate picture of current conditions. The center is also responsible for informing the public of tide times, and cooperates with local tourism bureaux and Fishermen's Associations to erect electronic billboards in harbours to inform seafarers of ocean conditions. The Bureau also includes the following departments: The CWB building is accessible within walking distance South from NTU Hospital Station of the Taipei Metro. Central Weather Bureau The Central Weather Bureau (CWB; ) is