Performance Technical Report
CHICAGO UNIV IL WIND RESEARCH LAB
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The purpose of this research is to generate the data base of all cyclones in the northern hemisphere, north of the latitude 20 North for determining the oceanic regions where cyclones develop deepening of the central pressure and weaken filling of the central pressure. Specific regions of the Navys interest are The North Pacific Ocean, North Atlantic Ocean, and Arctic Oceans. The data base is obtained by examining the 6-hourly National Meteorological Center surface maps and the 12-hourly surface maps from The Japan Meteorological Agency. The input data for generating the magnetic cyclone tape are latitude, longitude, central pressure PC and the radii of the PC 16 mb and PC 8 mb isobars surrounding or in the vicinity of the cyclone center. After smoothing, the input values are used in computing the differencial values finite differences such as pressure deepening in mb6hrs, pressure filling and the windspeed intensification msec in 6 hours. These parameters, both input and computed, are tabulated along with the consecutive number of each cyclone.
- Physical and Dynamic Oceanography