An Observational Study of Tropical-Cyclone Spin-Up in Supertyphoon Jangmi (2008) from 24 - 27 September

Abstract

An observational study of tropical-cyclone intensification is performed using dropsondes, in situ flight-level data, satellite imagery, and ELDORA radar during the spin-up of Tropical Storm Jangmi (2008) in the Western North Pacific. This event was observed with research aircraft during the Tropical Cyclone Structure 2008 (TCS08) field experiment over the course of three days as Jangmi intensified rapidly from a tropical storm to a supertyphoon. The dropsonde analysis indicates that the peak azimuthally-averaged storm-relative tangential wind speed occurs persistently within the boundary layer throughout the spin-up period and suggests that significant supergradient winds are present near and just within the radius of maximum tangential winds.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2012
Accession Number
ADA563921

Entities

People

  • M. M. Bell
  • Michael T. Montgomery
  • N. T. Sanger
  • Roger K. Smith

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Artificial Satellites
  • Boundaries
  • Boundary Layer
  • Convection
  • Convergence
  • Cyclones
  • Dropsondes
  • Global Positioning Systems
  • Layers
  • Measurement
  • Meteorology
  • Pressure Gradients
  • Research Aircraft
  • Satellite Imaging
  • Tropical Cyclones

Fields of Study

  • Environmental science

Readers

  • Atmospheric Science/Meteorology

Technology Areas

  • Space