Rapid Marine Cyclogenesis Forecast Sensitivity to High Resolution Sea Surface Temperatures During ERICA IOP-5

Abstract

The influence of high resolution sea surface temperatures (SST) on Nested Grid Model (NGM) predictions of rapid marine cyclogenesis is examined. Satellite data provides a gridded SST analysis with a resolution of 50 km. Forecasts using the operational blended SST analysis with a neutral stratification assumed in the calculation of the surface exchange coefficient over the ocean are compared to forecasts using the high resolution SST analysis with a stability dependent surface exchange coefficient. Further comparison is made to NGM forecasts with no surface fluxes. This study covers the Intensive Observation Period (IOP) 5 of the Experiment on Rapidly Intensifying Cyclones over the Atlantic (ERICA). Results show little sensitivity of central pressure and storm position to the high resolution SST's. However, differences in mesoscale features are present, primarily surface fluxes, precipitation, and frontal circulations.... SST Resolution, ERICA, Surface fluxes, Rapid cyclogenesis.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1992
Accession Number
ADA262117

Entities

People

  • Marcia A. Decaria

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Artificial Satellites
  • Boundary Layer
  • Coefficients
  • Cold Fronts
  • Cyclogenesis
  • Grids
  • Heat Energy
  • High Resolution
  • Latent Heat
  • Layers
  • Meteorology
  • North America
  • Oceanography
  • Oceans
  • Sea Surface Temperature
  • Surface Temperature
  • United States

Fields of Study

  • Environmental science

Readers

  • Atmospheric Science/Meteorology

Technology Areas

  • Space