Journal article
Sensitivity of Tropical Cyclone Formation to Resolution-Dependent and Independent Tracking Schemes in High-Resolution Climate Model Simulations
PH Raavi, KJE Walsh
Earth and Space Science | AMER GEOPHYSICAL UNION | Published : 2020
DOI: 10.1029/2019EA000906
Abstract
In the present study, global tropical cyclone (TC) formation characteristics are estimated using two fundamentally different Commonwealth Scientific and Industrial Research Organisation (CSIRO) and Okubo-Weiss zeta parameter (OWZP) tracking schemes in the reanalysis data and in a high-resolution climate model with interannually varying sea surface temperatures. Both the schemes have a reasonable global geographical distribution of TC genesis locations with under simulation in the eastern North Atlantic and northwestern Australian regions. The mean annual TC frequency in the model is similar to observations using the CSIRO scheme but higher using the OWZP scheme, whereas the annual frequency ..
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Grants
Awarded by University of Melbourne
Funding Acknowledgements
We are grateful to the Melbourne India Postgraduate Program for providing the first author with funding to carry out her PhD at the University of Melbourne. We also thank the Australian Research Council Centre of Excellence for Climate Extremes (grant CE170100023) and the Earth Systems and Climate Change Hub of the National Environmental Science Program for providing partial funding. We want to thank the ACCESS modeling group and the National Computational Infrastructure system, supported by the Australian government, for providing the model and computing time and space on the supercomputer (Raijin). The preprocessed model and reanalysis data are available at the following link: https://doi.org/10.26188/5e26eb56a17d2.