Performance Technical Report

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 Na...

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Bibliographic Details
Main Author: Fujita, T. T.
Other Authors: CHICAGO UNIV IL WIND RESEARCH LAB
Format: Text
Language:English
Published: 1991
Subjects:
Meteorology
Physical and Dynamic Oceanography
*CYCLONES
*MARINE METEOROLOGY
PRESSURE
TABLES(DATA)
OCEANS
BAROMETRIC PRESSURE
NORTH ATLANTIC OCEAN
NORTH PACIFIC OCEAN
MAGNETIC TAPE
GEOGRAPHIC DISTRIBUTION
ARCTIC REGIONS
LATITUDE
LONGITUDE
NORTHERN HEMISPHERE
DATA BASES
JAPAN
Arctic
Pacific
North Atlantic
Online Access:http://www.dtic.mil/docs/citations/ADA238575
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA238575
Description
Summary: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 Navy's 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 mb/6hrs, pressure filling and the windspeed intensification m/sec in 6 hours. These parameters, both input and computed, are tabulated along with the consecutive number of each cyclone. Original contains color plates: All DTIC and NTIS reproductions will be in black and white.

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