Sentences with phrase «precipitation variability influences»
Holden, Z. A., Morgan, P., Crimmins, M. A., Steinhorst, R. K. & Smith, A. M. S. Fire season precipitation variability influences fire extent and severity in a large southwestern wilderness area, United States.
http://www.nature.com/ Not exact matches
Because of large natural variability, the first approach results in an outcome suggesting that it is appropriate to conclude that there is no increase in precipitation by human influences, although the correct interpretation is that there is simply not enough evidence (not a long enough time series).
The ENSO phenomenon is one of the key factors that influence the interannual variability of precipitation over Southern South America.
So: The study finds a fingerprint of anthropogenic influences on large scale increase in precipitation extremes, with remaining uncertainties — namely that there is still a possibility that the widespread increase in heavy precipitation could be due to an unusual event of natural variability.The intensification of extreme rainfall is expected with warming, and there is a clear physical mechanism for it, but it is never possible to completely separate a signal of external forcing from climate variability — the separation will always be statistical in nature.
As you can see, the variability around the trend is largely explained by temperature and precipitation, while there is (near) zero influence on the trend itself...
«Ocean evaporation has little direct influence on California precipitation because of its relatively weak variability,» Wei said.
We add to this knowledge by examining how variability in winter precipitation could influence management effectiveness.
The large interannual to decadal hydroclimatic variability in winter precipitation is highly influenced by sea surface temperature (SST) anomalies in the tropical Pacific Ocean and associated changes in large - scale atmospheric circulation patterns [16].
However this is a change that is only now beginning to emerge and currently is exerting less influence on precipitation variability than ocean variability or internal variability.»
Winter precipitation (mean and extreme) variability and trends along the south coast and interior of Alaska appear to be closely related to variations in the PNA pattern over this timeframe, while El Nino / Southern Oscillation (ENSO) influences, through the Nino3 index, appear to be significant along the south coast alone.
These aspects of precipitation generally exhibit large natural variability, and El Niño and changes in atmospheric circulation patterns such as the North Atlantic Oscillation have a substantial influence.
«We show that anthropogenic forcing has had a detectable influence on observed changes in average precipitation within latitudinal bands, and that these changes can not be explained by internal climate variability or natural forcing.
Steve Ghan, from the Pacific Northwest National Laboratory, says, «This work confirms what previous cloud modelling studies had suggested: that although clouds are influenced by many factors, increasing aerosols enhances the variability of precipitation, suppressing it when precipitation is light and intensifying it when it is strong.