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Long-term changes in sea surface temperature (SST) within the southern Levantine Basin

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  • Physical Oceanography, Marine Meteorology and Marine Physics
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Abstract

Knowledge of sea surface temperature (SST) behaviour is vital for long-term climate scenarios. This study highlights essential outcomes about the distinguishable and unsurprising warming of the SST along the southern border of the Levantine Basin. The analysis is based on monthly SST data for the period 1948–2018. The southern Levantine Basin has undergone SST increase, during the last 71 years. In this study, a consistent warming trend has been found for the analysed SST data series, with a rate of 0.04°C/a, i.e., 0.4°C/(10 a). From 1975 to 1991 the mean annual SST was 17.1°C, and this increased to be 19.2°C, over the period 2002–2018. Results revealed two opposite trends of variability: a decreasing trend (−0.06°C/a) over the period 1975–1991, and an increasing trend (0.2°C/a) from 2002 to 2018. Over the period 1948–2018, positive mean annual SST anomalies had an average of 1.8°C, and negative anomalies had an average of −1.1°C. The lowest SST total increase was found from January to April, with values about 0.03°C, while the highest warming appeared from June to September. The driving mechanisms behind the SST changes need to be more investigated, to understand the future trends and impacts of climate change in the Levantine Basin.

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  1. Laboratory of Physical Oceanography, Division of Marine Environment, National Institute of Oceanography and Fisheries (NIOF), Alexandria, 21556, Egypt

    Tarek M. El-Geziry

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Correspondence to Tarek M. El-Geziry.

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El-Geziry, T.M. Long-term changes in sea surface temperature (SST) within the southern Levantine Basin. Acta Oceanol. Sin. 40, 27–33 (2021). https://doi.org/10.1007/s13131-021-1709-2

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  • DOI: https://doi.org/10.1007/s13131-021-1709-2

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