Fog analysis at Istanbul Ataturk International Airport

Self Cite

The aviation industry has developed greatly in recent years. Millions of people choose air transport as a means of transportation every year, and flight safety is critically important. However, meteorological conditions can cause disruptions in flight activities and lead to accidents. One of the meteorological conditions that adversely affect flight activities is fog. Prediction of fog incidents increases flight safety. In this study, fog analysis of Ankara Esenboga International Airport was carried out between 2011 and 2020. The data used in the fog analysis are taken from the observations of Aviation Routine Weather Report (METAR) and Aviation Selected Special Weather Report (SPECI). The distribution of fog events in a 10-year period was determined according to years, months, days, hours, meteorological parameters (wind, pressure, cloud cover/height, temperature, and prevailing view), and types. Over a 10-year period, 802.02 hr of fog occurred. The average number of foggy days was determined as 17.9. According to the fog formation types, the fogs occurring at Esenboga Airport were classified as 62% radiation fog, 14% lowering cloud base, 9% precipitation fog, 2% advection fog, and 12% unknown fog. CAT categories in the foggy hours of Esenboga Airport were determined. In cases where there were foggy observations for approach and landing activities during the 10-year period, these were found to be 40.34% according to CAT I, 72.8% according to CAT II, 93.8% according to CAT IIIA, and 100% according to CAT IIIB. Synoptic analysis of a particular fog incident, which started at 2220 UTC on December 16 and continued for 55.83 hr, was also made. When the synoptic maps and Skew-T Log P diagrams were examined, the deepening of the high pressure center in and around Ankara and the low thermal advection caused a very stable atmosphere, resulting in a prolonged and intense fog event.

Section: Study Area Data and Methodologymentioning

confidence: 99%

Section: Study Area Data and Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ankara Esenboga International Airport (Turkey) fog analysis and synoptical investigation of the fog event dated 17–19 December 2019

Koyuncu¹,

Deniz

Özdemir

2022

Self Cite

“…For example, Özdemir et al . (2016) investigated the changes of fog days in Istanbul Ataturk airport (NW Turkey). They found decreasing trends in the fog occurrences between 2006 and 2015 years.…”

Section: Introductionmentioning

confidence: 99%

A climatological study of fog in Turkey

Baltaci

Silva

Gomes

2022

Fog analysis of airports in the northeast of Turkey in the last decade

Uğurluel,

Deniz,

Özdemir

2023

Self Cite

Fog is one of the important meteorological phenomena that play a critical role in the aircraft flying conditions and at airports. Fog events can lead to serious damage to the airport operations and the economy due to low visibility conditions and interrupting transportation. This study aims to explain the characteristics of the fogs occurring at the airports of the Kars, Agrı, and Igdır cities where located in the northeast of Turkey and neighbouring Georgia, Armenia, Nakhchivan, and Iran, and evaluate fog types. Within the scope of the study, a total of 3792 foggy aviation routine weather reports (METAR) and selected aviation special weather reports (SPECI) observations of the 10 years; from 2011 to 2020 were used for Igdır Şehit Bülent Aydın Airport (International Civil Aviation Organization [ICAO] code: LTCT), Kars Harakani Airport (LTCF) and Agrı Ahmed‐i Hani Airport (LTCO). During the time period studied, the number of foggy days in LTCT, LTCF, and LTCO was 41, 296, and 464, respectively. Fog events were most frequent from November to March, with December, January, and February being the most active months. August and September have no fog events in all three airports. Fog formation occurs usually at night hours and reaches a maximum around sunrise. Based on the physical formation mechanism, in LTCT, precipitation fog (PCP) was dominant at 39.02%; in LTCF and LTCO, radiation fog (RAD) was dominant at 33.11% and 58.84%, respectively.