Procedures are described for objectively analyzing satellite cloud patterns for the purpose of defining indirect measures of intensity and orientation of tropical storms. One approach is based on properties of the distribution of centers of curvature for segments of concentric cloud bands associated with the storm. The magnitude and variability parameters of the center of curvature distribution appear related to storm intensity as estimated by the Dvorak T number. This result is based on a case history of growth-dissipation cycle of a single tropical storm. The major axis of the center for curvature distribution is an additional parameter that can be used to measure rotation of distinctive cloud features. In a second approach, curvature and convergence are calculated for individual spiral cloud bands throughout the storm. Maps of these parameters can be used to help diagnose storm intensity and also perhaps aid in predicting future storm development.

  • Corporate Authors:

    Control Data Corporation

    Research Division
    Minneapolis, MN  United States 
  • Authors:
    • Dartt, D G
  • Publication Date: 1975-10-2

Media Info

  • Pagination: 64 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00136302
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NEPRF-TR-11-75(EDC) Tech Rpt.
  • Contract Numbers: N00228-75-C-2363
  • Files: TRIS
  • Created Date: Jul 13 1976 12:00AM