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Climate 2017, 5(4), 96; https://doi.org/10.3390/cli5040096

Relation between Short-Term and Long-Term Variations of Precipitation

Institute of Applied Physics and Oeschger Centre for Climate Change Research, University of Bern, 3012 Bern, Switzerland
Received: 13 October 2017 / Revised: 29 November 2017 / Accepted: 8 December 2017 / Published: 14 December 2017
(This article belongs to the Special Issue Decadal Variability and Predictability of Climate)
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Abstract

It is often stated that short-term precipitation of synoptical weather is related to trends or interannual variations of precipitation. We analyzed nine long-term series of daily precipitation values of the Global Historical Climatology Network (GHCN-D V2.0). Generally, the mean amplitude of short-term variations increases (decreases) if there is a positive (negative) interannual anomaly of precipitation, respectively. In all cases, the amplitude of the short-term variations (periods < 10 days) clearly correlates with the long-term variations (periods > 1.5 years) of precipitation. The correlation coefficient is between 0.7 and 0.95 at periods <8 days. For Kukuihaele (Hawaii), the correlation maximizes at a period of about 14 days. In the other cases, the maximum of the correlation is reached at periods <5 days. View Full-Text
Keywords: precipitation; correlation; weather; climate; intraseasonal oscillations; interannual variability precipitation; correlation; weather; climate; intraseasonal oscillations; interannual variability
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Hocke, K. Relation between Short-Term and Long-Term Variations of Precipitation. Climate 2017, 5, 96.

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