File:North Atlantic Tropical Cyclone Activity 1949–2015 Power Dissipation Index PDI NOAA EPA.png

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Summary

Description	English: North Atlantic Tropical Cyclone Activity According to the Power Dissipation Index, 1949–2015 This figure presents annual values of the Power Dissipation Index (PDI), which accounts for cyclone strength, duration, and frequency. Tropical North Atlantic sea surface temperature trends are provided for reference. Note that sea surface temperature is measured in different units, but the values have been plotted alongside the PDI to show how they compare. The lines have been smoothed using a five-year weighted average, plotted at the middle year. The most recent average (2011–2015) is plotted at 2013. Data source: Emanuel, K.A. 2016 update to data originally published in: Emanuel, K.A. 2007. Environmental factors affecting tropical cyclone power dissipation. J. Climate 20(22):5497–5509.
Date	August 2016
Source	https://www.epa.gov/climate-indicators/climate-change-indicators-tropical-cyclone-activity#6
Author	EPA/NOAA

Licensing

This image is in the public domain because it contains materials that originally came from the U.S. National Oceanic and Atmospheric Administration, taken or made as part of an employee's official duties.

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	Date/Time	Dimensions	User	Comment
current	11:43, 2 September 2022	928 × 580 (65 KB)	Adakiko	Current power disipation plotted to 2017
	11:35, 2 September 2022	928 × 580 (83 KB)	Adakiko	Current 1880 to 2021
	14:51, 8 October 2017	928 × 580 (67 KB)	Prokaryotes	User created page with UploadWizard