A comprehensive case study of a frontal mineral dust storm in spring over Iraq
العناوين الأخرى
دراسة حالة شاملة لعاصفة غبار معدني جبهوية في الربيع فوق العراق
المؤلفون المشاركون
Rumi, Thair Ubayd
Zaki, Khawlah Nihad
Hassun, Ahmad Fattah
المصدر
العدد
المجلد 58، العدد 4B (31 ديسمبر/كانون الأول 2017)، ص ص. 2236-2251، 16ص.
الناشر
تاريخ النشر
2017-12-31
دولة النشر
العراق
عدد الصفحات
16
التخصصات الرئيسية
الملخص EN
Dust storms are among the most important weather phenomena in Middle East.
The Shamal dust storms are dominated across Iraq and the whole Middle East, especially in summer.
However, frontal type of dust storms is possible in winter and spring.
In this research, a comprehensive case study was conducted to a dust storm that occurred on 20 March 2016 from many perspectives: synoptic, satellite imagery, dust concentration analysis, visibility reduction, and aerosol optical depth.
The study shows that the dust storm initiated inside Syria and moved eastward with the movement of the front.
Dust concentrations and aerosol optical depth were also discussed that simulate the dust storm over Iraq in a reasonable way with some differences.
The dust concentrations values increase gradually during the early hours of 20 March at 1200 UTC to become within (200-5000) μg/m^3.
The dust concentrations comparison with some surrounding countries shows that Iraq had the maximum value at the dust storm time.
An experimental relationship to calculate the dust concentration from visibility was tested according to the multi-model products and revealed acceptable estimates.
Dust aerosol optical depth offers good means to quantify the dust amount in the Middle East where the dust is the determining factor.
Additional investigation was done by using the relative vorticity and the potential vorticity.
The results of this investigation show that there are upper shortwaves that are responsible of strengthening of the low pressure system at the surface.
The computed value of potential vorticity advection was estimated to be about (2.7×10-4 K m2/kg s) along a distance of about 500 km which suggested a high value of divergence east of the system which lead to a significant updraft.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Rumi, Thair Ubayd& Hassun, Ahmad Fattah& Zaki, Khawlah Nihad. 2017. A comprehensive case study of a frontal mineral dust storm in spring over Iraq. Iraqi Journal of Science،Vol. 58, no. 4B, pp.2236-2251.
https://search.emarefa.net/detail/BIM-796572
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Rumi, Thair Ubayd…[et al.]. A comprehensive case study of a frontal mineral dust storm in spring over Iraq. Iraqi Journal of Science Vol. 58, no. 4B (2017), pp.2236-2251.
https://search.emarefa.net/detail/BIM-796572
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Rumi, Thair Ubayd& Hassun, Ahmad Fattah& Zaki, Khawlah Nihad. A comprehensive case study of a frontal mineral dust storm in spring over Iraq. Iraqi Journal of Science. 2017. Vol. 58, no. 4B, pp.2236-2251.
https://search.emarefa.net/detail/BIM-796572
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Text in English ; abstracts in English and Arabic.
رقم السجل
BIM-796572
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر