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Climate 2017, 5(4), 96;

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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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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Hocke, K. Relation between Short-Term and Long-Term Variations of Precipitation. Climate 2017, 5, 96.

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