Data

Cyclone Tracking and Statistics

The University of Melbourne
Ian Simmonds (Managed by) Simmonds, Ian (Managed by)
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From the University of Melbourne Automatic Cyclone Tracking website.
"We use the cyclone statistics that are presented here in our published research. Although every effort has been made to ensure that they are correct we can not guarantee that the statistics or the data used to compute them are free from errors. Hence we take no responsibility for any negative consequences arising from their use by any party external to our group at the University of Melbourne.
The cyclone statistics, as data files or images, may be freely used for research and most publications including journals. However in the case of a reference book (e.g. an encyclopaedia) or a text book you should contact Ian Simmonds for clarification on any potential copyright issue relating to the University of Melbourne.
In any event it would be appreciated that you include an appropriate reference to this web site. For instance:
The cyclone statistics were obtained from the University of Melbourne Automatic Cyclone Tracking web page (http://www.earthsci.unimelb.edu.au/tracks/cychome.htm). These are computed using the automatic cyclone tracking scheme of Murray and Simmonds (Murray and Simmonds 1991a; Murray and Simmonds 1991b; Simmonds et al. 1999; Simmonds and Murray 1999; Simmonds et al. 2003; Lim and Simmonds 2007)."

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School of Earth Sciences, University of Melbourne



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Contains global statistics of cyclones that were tracked with the University of Melbourne automatic cyclone tracking scheme. These are predominantly extratropical cyclones, although there is also some expression of tropical cyclones. The primary purpose of this web site is to allow the wider community to access cyclone statistics, which are available on a 2.5 x 2.5 degree latitude-longitude grid, and to perform a variety of tasks including the creation of plots, the saving of data and the computation of anomalies (difference) from a chosen reference data set e.g. A climatology. Data is taken from various projects which use the cyclone tracking software, and is hosted by ECMWF (European Centre for Medium-Range Weather Forecasts). Cyclone statistics based on 6 hourly mean sea level pressure (MSLP) are available for several reanalysis projects: ERA-40 Reanalysis (ERA40) (1957-2002), NCEP Reanalysis (National Weather Service: National Centers for Environmental Prediction) (1958- ongoing), NCEP Reanalysis 2 (NCEP2) (1979- ongoing) and JRA-25 Reanalysis (Japanese 25-year Reanalysis Project) (1979- ongoing).

Data time period: 1957

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