Recent Study of Anomaly of Global Annual Geopotential Height and Global Warming

• 作者: Mansour Almazroui Yehia Yehia Hafez
• 来源期刊: 大气和气候科学(英文)
• 学科: 地球科学
• 关键词: ANOMALY of GLOBAL GEOPOTENTIAL Height GLOBAL Warming NAO SOI El-Nino3.4
• 年，卷（期）: 2014,（3）
• 页码范围: 347-357
• 页数: 11页
• 分类号: P4

摘要

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.