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AGU: Geophysical Research Letters

 

Keywords

  • hurricanes
  • tropical cyclones
  • biases

Index Terms

  • Atmospheric Processes: Tropical meteorology
  • Atmospheric Processes: Climate change and variability
  • Mathematical Geophysics: Stochastic processes

Abstract

Evidence for a modest undercount bias in early historical Atlantic tropical cyclone counts

Michael E. Mann

Department of Meteorology and Earth and Environmental Systems Institute, Pennsylvania State University, University Park, Pennsylvania, USA

Thomas A. Sabbatelli

Department of Meteorology and Earth and Environmental Systems Institute, Pennsylvania State University, University Park, Pennsylvania, USA

Urs Neu

ProClim, Swiss Academy of Sciences, Bern, Switzerland

We obtain new insights into the reliability of long-term historical Atlantic tropical cyclone (‘TC’) counts through the use of a statistical model that relates variations in annual Atlantic TC counts to climate state variables. We find that the existence of a substantial undercount bias in late 19th through mid 20th century TC counts is inconsistent with the statistical relationship between TC counts and climate.

Received 22 August 2007; accepted 18 October 2007; published 24 November 2007.

Citation: Mann, M. E., T. A. Sabbatelli, and U. Neu (2007), Evidence for a modest undercount bias in early historical Atlantic tropical cyclone counts, Geophys. Res. Lett., 34, L22707, doi:10.1029/2007GL031781.

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