RESEARCH
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several methods of forecasting typhoon movements have been applied to the most recent storms and a comparative assessment of their value as operational tools is being made.
A new type of photo-electric remote recorder for use with seis- mometer galvanometers was designed and made in the Observatory workshop. Although primarily designed to help forecasters to observe microseisms associated with tropical cyclones, it has also enabled the Observatory to fulfil its obligations under the new international scheme for giving warning of dangerous ocean waves caused by earthquakes.
An investigation into the application to weather analysis of cloud photographs from artificial earth satellites was begun; this was made possible by the successful American launching of TIROS III in July 1961.
A number of papers have been presented at international meetings and published in various journals during the year. They include The Effects of Meteorological Conditions on Tide Heights at Hong Kong; Surface Winds in Hong Kong Typhoons; The Energy Exchange between the Sea and Atmosphere in a Typhoon; The Estimation of Surface Winds in Typhoons; and The Vertical Structure of the Atmosphere over Hong Kong.