Title: Long-term thunderstorm analysis at airports in the Marmara Region: types and favourable atmospheric conditions

Authors: Veli Yavuz; Ali Deniz; Emrah Tuncay Özdemir; Haldun Karan; Caner Temiz

Addresses: Department of Meteorological Engineering, Faculty of Aeronautics and Astronautics, Istanbul Technical University, ITU Maslak Campus, 34469 Maslak, Istanbul, Turkey ' Department of Meteorological Engineering, Faculty of Aeronautics and Astronautics, Istanbul Technical University, ITU Maslak Campus, 34469 Maslak, Istanbul, Turkey ' Turkish State Meteorological Service, Ataturk Airport Meteorology Office, Yesilkoy, 34149 Istanbul, Turkey ' Turkish Scientific and Technological Research Council of Turkey, Marmara Research Center, Istanbul, Turkey ' Turkish State Meteorological Service, Van Ferit Melen Airport Meteorology Office, Edremit, 65300, Van, Turkey

Abstract: In this study, long-term analyses of thunderstorm events occurring in Marmara Region airports were carried out. In the analyses made using airport reports, the events that occurred between 2001-2015 were evaluated in terms of annual, monthly and intra-day changes. While no particular trend was observed in the thunderstorm events annually, more thunderstorms occurred in the summer months after September. In intraday analyses, it was determined that the most thunderstorm events occurred in the 2nd time zone (1100-1900 UTC). Rain also occurred 72% of the times when thunderstorms occurred. The rate of thunderstorm events that occurred without precipitation is 22%. One of the most important results of the study is that the convective available potential energy (CAPE) value was found to be zero in approximately 50% of the thunderstorm events. Non-zero CAPE values were also found to occur mostly (about 90%) in the range of 0 J/kg-1,000 J/kg.

Keywords: thunderstorm; lightning; Marmara Region; airports; atmospheric conditions; air-sea interactions; extreme weather.

DOI: 10.1504/IJGW.2022.125083

International Journal of Global Warming, 2022 Vol.28 No.1, pp.81 - 95

Received: 28 Jul 2021
Accepted: 14 Feb 2022
Published online: 25 Aug 2022 *

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