Different long-term trends of extra-tropical cyclones and windstorms in ERA-20C and NOAA-20CR reanalyses
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Authors
Colleges, School and Institutes
Abstract
NOAA 20th century and ERA-20C reanalysis datasets are evaluated regarding the representation of extra-tropical cyclones and windstorms over the Northern and Southern Hemisphere during the respective 6-month winter seasons. The results indicate substantial differences in low-frequency variability between the two datasets – especially in the first half of the 20th century – expressed in different signs and/or magnitudes of long-term trends. This is hampering a reliable analysis of real long-term trends of cyclone and windstorm activity. However, higher-frequency variability is in good agreement between both datasets especially for the Northern Hemisphere.
Details
Original language | English |
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Pages (from-to) | 586-595 |
Journal | Atmospheric Science Letters |
Volume | 17 |
Issue number | 11 |
Early online date | 14 Oct 2016 |
Publication status | Published - Nov 2016 |
Keywords
- windstorm events, reanalysis data, extra-tropical cyclones