TITLE:
Recent Study of Anomaly of Global Annual Geopotential Height and Global Warming
AUTHORS:
Yehia Yehia Hafez, Mansour Almazroui
KEYWORDS:
Anomaly of Global Geopotential Height, Global Warming, NAO, SOI, El-Nino3.4
JOURNAL NAME:
Atmospheric and Climate Sciences,
Vol.4 No.3,
July
9,
2014
ABSTRACT:
This paper studies the anomaly
of global annual 500 hpa geopotential anomaly and global warming through the
period (1950-2011). Anomaly method, linear trend and linear correlation coefficient
techniques are referred to identify and describe the correlation between
anomaly 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 is
completely controlled by global warming and NAO, SOI, El-Nino3.4 during the
study period. However, the trend of the global surface air temperature anomaly
completely coincides with the trend of 500 hpa geopotential height anomaly.
This result uncovers the exist of abnormal weather phenomena through the last
decades.