Throughout this work, seasonal surface
air temperatures for both coast and desert Libya have been examined. Both average
temperature departure test and Mann–Kendall test have been applied to investigate the
temperature behavior and trend intensions. Also, Sen's slope estimate test has been used to calculate the
temperature trends' coefficients. Moreover, cross-correlation and spectral analysis techniques are applied to investigate the influence of terrestrial and extraterrestrial parameters, represented by North Atlantic Oscillations, NAO, and sunspot number, Rz, respectively, upon regional
temperature.
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Libyan coast exhibits cooling trend during autumn and winter while warming trend is noticed during spring and summer.
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The desert region climate shows seasonal warming behavior during the last century.
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Correlation results showed highest influences upon autumn and winter coast temperatures by Rz and NAO during 1981-2010.
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Results showed that spectral properties are different for different regions and different seasons on regional scale.
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NAO is a potential transmitter of solar forcing as it acts as a mediator between the Sun and Earth’s climate.
