Atlantic hurricane reanalysis

Atlantic Hurricane Reanalysis

Atlantic hurricane reanalysis

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Atlantic hurricane reanalysis is an ongoing project within the National Oceanic and Atmospheric Administration which seeks to correct and add new information about past Atlantic tropical cyclones. It was started around 2000 to update HURDAT, the official hurricane database for the Atlantic Basin, which has become outdated since its creation due to various systematic errors introduced into the database over time. This effort has involved reanalyses of ship observations from the International Comprehensive Ocean-Atmosphere Data Set (ICOADS) as well as reanalyses done by other researchers over the years. It has been ongoing for eleven years now, and should last another four years.

Inaccuracies and omissions in existing data


HURDAT contains a number of errors which need to be corrected, such demonstrated by the outliers in the a pressure vs. wind speed graph of datapoints in the database (right). Some of these errors have existed since the database's creation during NASA's Apollo Program, where it was used to help produce probabilities of tropical cyclone-induced winds in critical areas such as Cape Kennedy (now Cape Canaveral).

New information

A significant amount of new data for systems between 1851 and 1886 became available after a major basin-wide reanalysis in 1996, a project led by Jose Fernandez-Paratagas with the collaboration of Henry Diaz. The new data was constructed using old newspaper articles and the hemispheric weather map...
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