Fog Study at Ardabil Airport for the Statistical Period From 2011 to 2020
The presence of fog reduces the horizontal visibility to less than 1000 meters and disrupts air transport services and can make it impossible for aircraft to land and take off. Climatology of fog can help better diagnosis and prediction of fog. In this study, METAR data from 2011 to 2020 were used t...
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| Format: | Article |
| Language: | fas |
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I.R. of Iran Meteorological Organization
2022-03-01
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| Series: | Nīvār |
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| Online Access: | https://nivar.irimo.ir/article_154037_dcbb2cba230eae149dfc9ddceb0a36ac.pdf |
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| author | Razieh Pahlavan Mohammad Moradi Sahar Tajbakhsh Majid Azadi Mehdi Rahnama |
| author_facet | Razieh Pahlavan Mohammad Moradi Sahar Tajbakhsh Majid Azadi Mehdi Rahnama |
| author_sort | Razieh Pahlavan |
| collection | DOAJ |
| description | The presence of fog reduces the horizontal visibility to less than 1000 meters and disrupts air transport services and can make it impossible for aircraft to land and take off. Climatology of fog can help better diagnosis and prediction of fog. In this study, METAR data from 2011 to 2020 were used to detect fog events at Ardebil Airport and according to the classification algorithm of Tardif and Rasmussen (2007), the types of events were determined. Then the fog climate was studied during the period. The results showed that the most common type of fog at Ardebil Airport is radiation fog and the rarest type is precipitation fog. In terms of duration of fog event, radiation fog was the longest fog event and precipitation fog was the shortest fog event. The highest incidence of fog during the study years was at 3 and 4 GMT. The monthly distribution of radiation fog showed that events often occurred in autumn and early winter (September to December). In terms of annual changes in the occurrence of fog, there was no significant trend in the number of fog hours during the studied years, except for the last three years which had a decreasing trend. |
| format | Article |
| id | doaj-art-78f3351196db4700b34926c4450cfbd1 |
| institution | Kabale University |
| issn | 1735-0565 2645-3347 |
| language | fas |
| publishDate | 2022-03-01 |
| publisher | I.R. of Iran Meteorological Organization |
| record_format | Article |
| series | Nīvār |
| spelling | doaj-art-78f3351196db4700b34926c4450cfbd12025-01-05T11:49:15ZfasI.R. of Iran Meteorological OrganizationNīvār1735-05652645-33472022-03-0146116-11711310.30467/nivar.2022.294577.1197154037Fog Study at Ardabil Airport for the Statistical Period From 2011 to 2020Razieh Pahlavan0Mohammad Moradi1Sahar Tajbakhsh2Majid Azadi3Mehdi Rahnama4Ph.D. Student, /Atmospheric Science and Meteorological Research CenterAssociate Professor/ Atmospheric Science and Meteorological Research CenterAssistant Professor,/Atmospheric Science and Meteorological Research CenterAssociate Professor/ Atmospheric Science and Meteorological Research CenterAssistant Professor/ Atmospheric Science and Meteorological Research CenterThe presence of fog reduces the horizontal visibility to less than 1000 meters and disrupts air transport services and can make it impossible for aircraft to land and take off. Climatology of fog can help better diagnosis and prediction of fog. In this study, METAR data from 2011 to 2020 were used to detect fog events at Ardebil Airport and according to the classification algorithm of Tardif and Rasmussen (2007), the types of events were determined. Then the fog climate was studied during the period. The results showed that the most common type of fog at Ardebil Airport is radiation fog and the rarest type is precipitation fog. In terms of duration of fog event, radiation fog was the longest fog event and precipitation fog was the shortest fog event. The highest incidence of fog during the study years was at 3 and 4 GMT. The monthly distribution of radiation fog showed that events often occurred in autumn and early winter (September to December). In terms of annual changes in the occurrence of fog, there was no significant trend in the number of fog hours during the studied years, except for the last three years which had a decreasing trend.https://nivar.irimo.ir/article_154037_dcbb2cba230eae149dfc9ddceb0a36ac.pdffog climatologyfog typeradiation fogadvection fogcbl fog |
| spellingShingle | Razieh Pahlavan Mohammad Moradi Sahar Tajbakhsh Majid Azadi Mehdi Rahnama Fog Study at Ardabil Airport for the Statistical Period From 2011 to 2020 Nīvār fog climatology fog type radiation fog advection fog cbl fog |
| title | Fog Study at Ardabil Airport for the Statistical Period From 2011 to 2020 |
| title_full | Fog Study at Ardabil Airport for the Statistical Period From 2011 to 2020 |
| title_fullStr | Fog Study at Ardabil Airport for the Statistical Period From 2011 to 2020 |
| title_full_unstemmed | Fog Study at Ardabil Airport for the Statistical Period From 2011 to 2020 |
| title_short | Fog Study at Ardabil Airport for the Statistical Period From 2011 to 2020 |
| title_sort | fog study at ardabil airport for the statistical period from 2011 to 2020 |
| topic | fog climatology fog type radiation fog advection fog cbl fog |
| url | https://nivar.irimo.ir/article_154037_dcbb2cba230eae149dfc9ddceb0a36ac.pdf |
| work_keys_str_mv | AT raziehpahlavan fogstudyatardabilairportforthestatisticalperiodfrom2011to2020 AT mohammadmoradi fogstudyatardabilairportforthestatisticalperiodfrom2011to2020 AT sahartajbakhsh fogstudyatardabilairportforthestatisticalperiodfrom2011to2020 AT majidazadi fogstudyatardabilairportforthestatisticalperiodfrom2011to2020 AT mehdirahnama fogstudyatardabilairportforthestatisticalperiodfrom2011to2020 |