Using NOGAPS Singular Vectors to Diagnose Large-scale Influences on Tropical Cyclogenesis

Abstract

The overarching goal is to improve our understanding of synoptic-scale influences on tropical cyclone (TC) formation and motion in the western North Pacific Ocean, in the context of error growth in forecast models. Benefits to the Navy would include improved forecast skill of the structure and track of developing and recurving TCs. The first objective is to connect Singular Vector (SV) and ensemble perturbation growth to synoptic-scale dynamical influences on tropical cyclone formation and structure change. The second objective is to extend these investigations towards vortex initialization and analysis of tropical cyclone structure in high-resolution models. The goal is to extend these methodologies into the Navy s COAMPS-TC framework.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2012
Accession Number
ADA574128

Entities

People

  • Carolyn A. Reynolds
  • Chun-Chieh Wu
  • David S. Nolan
  • James D. Doyle
  • Melinda S. Peng
  • Sharanya J. Majumdar

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Angular Momentum
  • Assimilation
  • Atmospheric Sciences
  • Boundaries
  • Boundary Layer
  • Cyclogenesis
  • Cyclones
  • Diffusivity
  • Fluid Dynamics
  • High Resolution
  • Meteorology
  • North Pacific Ocean
  • Pacific Ocean
  • Simulations
  • Steady State
  • Three Dimensional
  • Tropical Cyclones

Fields of Study

  • Environmental science

Readers

  • Atmospheric Science/Meteorology
  • Systems Analysis and Design