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Why is the Hurricane Season So Sharp?

Why is the Hurricane Season So Sharp?

This is a Preprint and has not been peer reviewed. This is version 1 of this Preprint.

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Authors

Wenchang Yang , Tsung-Lin Hsieh, Gabriel Vecchi

Abstract

Understanding tropical cyclone (TC) climatology is a problem of profound societal significance and deep scientific interest. The annual cycle is the biggest radiatively-forced signal in TC variability, presenting a key test of our understanding and modeling of TC activity. TCs over the North Atlantic (NA) basin, which are usually called hurricanes, have a sharp peak in the annual cycle, with more than half concentrated in only three months (August to October), yet existing theories of TC genesis often predict a much smoother cycle. Here we apply a novel framework originally developed to study TC response to climate change in which TC genesis...  more

DOI

https://doi.org/10.31223/X5Q31B

Subjects

Atmospheric Sciences, Climate, Meteorology, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics

Keywords

tropical cyclone, annual cycle, TC seeds

Dates

Published: 2021-04-09 14:55

Last Updated: 2021-04-09 21:55

License

CC BY Attribution 4.0 International

Additional Metadata

Data Availability (Reason not available):
IBTrACS v04 dataset is available from https://www.ncdc.noaa.gov/ibtracs. ERA5 dataset is available from https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era5. All model output data used in this study are available upon request.