Department of Meteorological Engineering, İstanbul Technical University, 34469, Maslak, Istanbul, Turkey.
Environ Monit Assess. 2023 May 22;195(6):708. doi: 10.1007/s10661-023-11288-5.
Between April 7 and April 10, 2013, a cyclone with a value of 995 hPa that developed in the central Mediterranean transported dust from the Sahara Desert towards Turkey. At 13 airports in Turkey, dust haze and widespread dust were seen during different occasions in this period and caused the observation of so-called "Blowing dust events." This cyclone blew dust towards the Cappadocia airport, and the prevailing visibility decreased to 3800 m, making it the lowest value measured during the transition of this cyclone. In this study, Aviation Routine Weather Report (Metar) and Aviation Selected Special Weather Report (Speci) observations of airports in North Africa and Turkey were evaluated for the period between April 3 and April 11, 2013. With this cyclone the prevailing visibility at Benina Airport in Libya decreased to 50 m on April 6, 2013. This study aims to evaluate long-distance dust transport's effects on meteorological visibility at airports in Turkey and examine the episodic changes of PM values measured by air quality monitoring stations. Hybrid Single Particle Lagrangian Integrated Trajectory (HYSPLIT) model outputs were used to determine the trajectories of long-distance dust particles. Powder red, green, and blue (RGB) and Moderate Resolution Imaging Spectroradiometer (MODIS) satellite images, Cloud-Aerosol LIDAR Infrared Pathfinder Satellite Observations (CALIPSO) images, the Barcelona Supercomputing Center-Dust Regional Atmosphere Model (BSC-DREAM8b) outputs, and Global Forecast System (GFS) synoptic maps were used for analysis. In addition, PM values obtained from air quality monitoring stations were examined. According to the data obtained from the CALIPSO images, the dust concentration on the Eastern Mediterranean reaches up to 5 km. The episodic values obtained from certain air quality measurement stations are Adana 701, Gaziantep 629, Karaman 900, Nevşehir 1343, and Yozgat 782 µg/m on an hourly average.
2013 年 4 月 7 日至 10 日，一个在中地中海发展的中心气压值为 995 百帕的气旋将撒哈拉沙漠的灰尘输送到土耳其。在土耳其的 13 个机场，在此期间的不同时间观察到灰尘雾霾和广泛的灰尘，导致了所谓的“扬尘事件”的观测。这个气旋将灰尘吹向卡帕多西亚机场，当时的主要能见度下降到 3800 米，这是该气旋过境期间测量到的最低值。在这项研究中，评估了 2013 年 4 月 3 日至 11 日期间北非和土耳其机场的航空例行天气报告（METAR）和航空特殊天气报告（SPECI）观测结果。由于这个气旋，利比亚的贝尼纳机场的主要能见度在 2013 年 4 月 6 日下降到 50 米。本研究旨在评估远距离沙尘传输对土耳其机场气象能见度的影响，并检查空气质量监测站测量的 PM 值的阶段性变化。混合单粒子拉格朗日积分轨迹（HYSPLIT）模型的输出用于确定远距离沙尘颗粒的轨迹。粉末红、绿、蓝（RGB）和中分辨率成像光谱仪（MODIS）卫星图像、云气溶胶激光雷达红外探路卫星观测（CALIPSO）图像、巴塞罗那超级计算中心-尘埃区域大气模型（BSC-DREAM8b）输出和全球预报系统（GFS）天气图用于分析。此外，还检查了空气质量监测站获得的 PM 值。根据 CALIPSO 图像获得的数据，东地中海的灰尘浓度高达 5 公里。某些空气质量测量站获得的间歇性值是阿达纳 701、加济安泰普 629、卡拉曼 900、内夫谢希尔 1343 和约兹加特 782μg/m，每小时平均。
