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This paper studies the anomalyof global annual 500 hpa geopotential anomaly and global warming through theperiod 1950-2011. Anomaly method, linear trend and linear correlation coefficienttechniques are referred to identify and describe the correlation betweenanomaly of global geopotential height field and global surface air temperature,North Atlantic Oscillation NAO, Southern Oscillation Index SOI, El-Nino3.4.The results revealed that, the anomaly of global annual geopotential height iscompletely controlled by global warming and NAO, SOI, El-Nino3.4 during thestudy period. However, the trend of the global surface air temperature anomalycompletely coincides with the trend of 500 hpa geopotential height anomaly.This result uncovers the exist of abnormal weather phenomena through the lastdecades.

KEYWORDS

Anomaly of Global Geopotential Height, Global Warming, NAO, SOI, El-Nino3.4

Cite this paper

Hafez, Y. and Almazroui, M. 2014 Recent Study of Anomaly of Global Annual Geopotential Height and Global Warming. Atmospheric and Climate Sciences, 4, 347-357. doi: 10.4236-acs.2014.43035.





Autor: Yehia Yehia Hafez, Mansour Almazroui

Fuente: http://www.scirp.org/



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