Temporal and Spatial Ozone Distribution over Egypt

Climate

Muhammed El-Tahan¹ 

[1] Aerospace Engineering Department, Cairo University, Cairo 12613, Egypt;

关键词: AIRS;    MERRA-2;    ozone;    trend;    spatial and temporal O3;   

DOI  :  10.3390/cli6020046

来源: DOAJ

【 摘 要 】

The long-term temporal trends and spatial distribution of Ozone (O3) over Egypt is presented using monthly data from both the Atmospheric Infrared Sounder (AIRS) and the model Modern-Era Retrospective analysis for Research and Applications (MERRA) datasets. The twelve-year monthly record (2005–2016) of the Total Ozone Column (TOC) has a spatial resolution of 1 × 1° from AIRS and 0.5 × 0.625° from the MERRA-2 dataset. The average monthly, seasonal and interannual time series are analyzed for their temporal trends, while the seasonal average spatial distributions are compared. It was found that MERRA-2 underestimated AIRS measurements. Both AIRS and MERRA-2 have their minimum monthly averages of TOC in February 2013. The maximum monthly average TOC from AIRS is 321.48 DU in July 2012, while that from MERRA-2 is 303.48 in April 2011.

【 授权许可】

Unknown