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December 10, 2007

AGU Powerpoint with Steve McIntyre


Posted to Author: Pielke Jr., R. | Disasters | Risk & Uncertainty

Here is a link to a PPT file providing an overview of a paper by Steve McIntyre and I titled, "Changes in Spatial Distribution of North Atlantic Tropical Cyclones," which he will be presenting this week at the AGU meeting.

Here are our conclusions:

Spatially descriptive statistics can contribute to analysis of controversial hurricane issues.

There has been no statistically significant increase in cyclone activity in the western Atlantic basin; the entire increase in measured storm and hurricane activity has taken place in the mid-Atlantic;

Lack of trend in landfall and normalized damage reconciles perfectly with lack of trend in western quartile storm and hurricane indices

The eastward shift cannot be attributed merely to earlier detection.

The shift could be technological or climatological or some combination; there is no plausible statistical basis for saying that the shift to the mid-Atlantic is not as important or relevant as the overall increase.

If the trend only occurs in the mid-Atlantic, should policy-makers care?

Comments welcomed.

Posted on December 10, 2007 11:16 AM

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