Abstract
The present work aims to investigate seasonal and interannual climatic variability over the eastern Mediterranean (EM) region through the period (1949-2016). The monthly data of meteorological elements of temperature, pressure and precipitation for the EM region during the period (1949-2016) has used and analyzed. Moreover, the monthly NCEP/NCAR reanalysis data composites for these meteorological elements over the EM region have used. The seasonal and interannual variability of meteorological elements (surface air temperature, air temperature at 1000 hpa level, 500 hpa level, 500 hpa geopotential height, mean sea level pressure and precipitation) over the EM region during that period is studied. The anomaly, time series and correlation coefficient techniques, methods used for the data analysis. The results revealed that the climate variability of the EM region varied dramatically from season to season and from year to year through the period of study (1949-2016). There is a seasonal positive trend of temperature at 1000 hpa and 500 hpa levels and Geopotential height of 500 hpa level over the EM region. Meanwhile, it found a seasonal negative trend of mean sea level pressure and precipitation rate. For the interannual climatic variable over the EM region, it noticed that there was a positive trend of annual air temperature at the levels of 1000 hpa and 500 hpa. Meanwhile, there exists an annual negative trend anomaly of mean sea level pressure, 500 hpa geopotential height and precipitation rate over the EM region through the study period. It has become clear that the climate regime over the EM region is a complex regime.
Highlights
The eastern Mediterranean (EM) is a region with a strongly seasonal climate due to the variability dominant of high and low pressure systems
The results revealed that: 1) It is clear that almost of the EM region has increased in surface air temperature in the winter season than its normal values through the period of study, whereas, the positive anomaly in temperature reached to its maximum value (+0.7 ̊C) over Turkey
It noticed that almost of the EM region has a negative anomaly in surface air temperature
Summary
The eastern Mediterranean (EM) is a region with a strongly seasonal climate due to the variability dominant of high and low pressure systems. The EM region suffered from an abnormally warm and dry winter season in 2006 It found that, there was a positive correlation coefficient between the geopotential height anomaly at 500 hpa over Europe and the increase of surface air temperature and mean sea level pressure mainly in the eastern Mediterranean [13] [14]. The EM region is under climate change leading to warmer and drier conditions through the period of study [15] It found that there was a relationship between geopotential height variability over Europe and existing extreme abnormal weather over the Eastern Mediterranean and Middle East during December 2013 [16]. The aim of the present study is to investigate a recent study of the seasonal and interannual variability of the climatological parameters over the EM region through the period (1949-2016)
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
