Approved for Public release; distribution is unlimited / An explosive cyclogenesis event that occurred in the eastern
Pacific Ocean on 14-17 December 1987 is investigated using the
National Meteorological Center (NMC) final analyses and
Geostationary Operational Environmental Satellite (GOES) digital
imagery. Forecasts for this cyclone by the Navy Operational Global
Atmospheric Prediction System (NOGAPS 3.0) and NMC Nested Grid Mesh
(NGM) forecasts initialized at 12 UTC 14 December are also
evaluated. Quasi-Lagrangian budgets of mass and vorticity are
computed to determine the factors responsible for the development
of this intense cyclone.
The initial surface development occurs within a strong
baroclinic zone southeast of a significant short-wave trough aloft.
Rapid intensification is accompanied by large cyclonic vorticity
advection in the upper troposphere as the surface cyclone moves
under the divergent quadrant of a 250mb jet streak. A key element
in this development is the superposition between the pre-existing
surface low and upper level short-wave trough in a favorable weak
static stability environment. These observations support earlier
studies that upper level forcing acts as a critical catalyst in
initiating eastern ocean explosive development. / http://archive.org/details/casestudyofexplo00curt / Lieutenant Commander, United States Navy
| Identifer | oai:union.ndltd.org:nps.edu/oai:calhoun.nps.edu:10945/26907 |
| Date | January 1989 |
| Creators | Curtis, Jan. |
| Contributors | Washington, C.H., Nuss, W.A., Department of Meteorology, Department of Oceangraphy |
| Publisher | Naval Postgraduate School |
| Source Sets | Naval Postgraduate School |
| Language | en_US |
| Detected Language | English |
| Type | Thesis |
| Format | 61 p., application/pdf |
| Rights | This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. |
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