Synoptic analysis of the hail wave and snowfall in Iraq in February 2020
DOI:
https://doi.org/10.31973/aj.v1i139.1396Keywords:
hail wave, snowfall, Blocking Action, jet stream, atmospheric pressureAbstract
The paper is an analysis of the cold wave and snowfall in Iraq which extended from 09/ 02/ 2020 to 13/ 02 / 2020. On the basis of the Iraqi meteorological data of snowfall, the stations of Mosul, Baghdad, Rutbah, Hilla, Kut and Karbala have been chosen for study. The findings show that there was a three- day snowfall in Mosul and one- day in the others and the lowest temperature was) -7°C (in Mosul and Baghdad; the temperature did not exceed) 2°C (. As for the atmospheric pressure, it ranged between medium and high values (1019.9-1031.8) millibars. The wind speed values ranged between (6 (-) 00) m / s. As for the prevailing trend, it was northeast; humidity reached high levels, ranging between 51-100%, and clouds covered the sky by 8-eighths most of the time. The snowfall was due to the control of a cold polar air mass represented by the Siberian Highland at the surface pressure level, and it was shallow, as an air depression was at 850 millibars and the temperatures ranged between-) 0° (and-) 5° (C. The main source of this cold wave was the control of the groove at the level of 500 millibars, as the temperature reached 25 degrees below zero in the central region of Iraq and(- 20°C) in southern Iraq in addition to the emergence of the axis of the polar jet stream accompanying the snowfall at a speed of up to 100 knots in central Iraq and it became clear from the analysis of these previous levels that there is a deep groove extending from 300 millibars to 850 millibars there was also a case of blocking which went from a pressure level of 300 millibars down to an surface pressure omega block and high – over – low types.
Downloads
References
Al-Dzi, Salar Ali Khadr, 2008, The Role of the Sudanese Depression in Snowfall in the City of Baghdad on 01/11/2008, Issue (2), 2008.
Al-Dzi, Salar Ali Khadr, 2013, The Climate of Old and Contemporary Iraq, House of General Cultural Affairs, Baghdad.
Al-Dzii, Salar Ali Khader, 2014, Concepts and Theories of Holistic Climate Science, Dar Al-Raya, Amman, p. 201
Al-Dzii, Salar Ali Khader, Bushra Ahmad Jawad Salih and Balsam Shaker Shnishil Al-Jizani, 2016, Snowfall in Iraq, Issue 13, 2016.
Al-Sayed, Yasser Ahmed, 2011, Weather and Climate between Meteorology and Geography, Bustan Almarafa Library, Alexandria, p. 254.
Ghanem, Ali Ahmad, 2011, Climate Geography, Dar Al Masirah, Amman, p. 217.
http://wxmaps.org/pix/euro.fcst
Iraqi Meteorological Organization and Seismology, Climate Section, weather maps.
Iraqi Meteorological Organization and Seismology, Department of Climate, Hourly (unpublished) climate data.
Kazem, Ali Karim, and Taher Hassan Hantoush, 2008, Snowfall Study in Baghdad, Proceedings of the Seventh Scientific Conference of the Ministry of Transport in 19-20 / 11/2008.
Downloads
Published
Issue
Section
License
Copyright and Licensing:
For all articles published in Al-Adab journal, copyright is retained by the authors. Articles are licensed under an open access Creative Commons CC BY 4.0 license, meaning that anyone may download and read the paper for free. In addition, the article may be reused and quoted provided that the original published version is cited. These conditions allow for maximum use and exposure of the work.
Reproducing Published Material from other Publishers: It is absolutely essential that authors obtain permission to reproduce any published material (figures, schemes, tables or any extract of a text) which does not fall into the public domain, or for which they do not hold the copyright. Permission should be requested by the authors from the copyrightholder (usually the Publisher, please refer to the imprint of the individual publications to identify the copyrightholder).
Permission is required for: Your own works published by other Publishers and for which you did not retain copyright.
Substantial extracts from anyones' works or a series of works.
Use of Tables, Graphs, Charts, Schemes and Artworks if they are unaltered or slightly modified.
Photographs for which you do not hold copyright.
Permission is not required for: Reconstruction of your own table with data already published elsewhere. Please notice that in this case you must cite the source of the data in the form of either "Data from..." or "Adapted from...".
Reasonably short quotes are considered fair use and therefore do not require permission.
Graphs, Charts, Schemes and Artworks that are completely redrawn by the authors and significantly changed beyond recognition do not require permission.
Obtaining Permission
In order to avoid unnecessary delays in the publication process, you should start obtaining permissions as early as possible. If in any doubt about the copyright, apply for permission. Al-Adab Journal cannot publish material from other publications without permission.
The copyright holder may give you instructions on the form of acknowledgement to be followed; otherwise follow the style: "Reproduced with permission from [author], [book/journal title]; published by [publisher], [year].' at the end of the caption of the Table, Figure or Scheme.
How to Cite
