تحديد المواسم الجافة شمال دائرة عرض 35° في العراق - بهزاد حسن حاجي عبدالرحمن - رسالة ماجستير 2019م

 

تحديد المواسم الجافة شمال دائرة عرض 35° في العراق




رسالة تقدمت إلى 

مجلس كلية التربية للعلوم الإنسانية - جامعة الموصل

وهي جزء من متطلبات نيل شهادة ماجستير 

في العلوم الإنسانية / الجغرافية


من قبل

بهزاد حسن حاجي عبدالرحمن




بإشراف

المدرس الدكتورة


سرى بدر حسين علاوي




1441هـ - 2019م

تحديد المواسم الجافة شمال دائرة عرض 35° في العراق - بهزاد حسن حاجي عبدالرحمن - رسالة ماجستير 2019م











Determination of dry seasons north of °35 latitude in Iraq




To

The Council of Collage of Education for Humanities / University of Mosul As a Partial Fulfillment of the Requirements for the Master Degree in Human Sciences / Geography




Submitted by

Bahzad Hassan Haji Abdulrahman



Supervised by

Lecturer

Dr. Surah Badr Hussein Allawi




1441 A.H. - 2019 A.D.




Abstract


   The current study aims to determine the dry seasons north of the °35 latitude in Iraq using the standard precipitation index (SPI) standard, which defines and classifies the dry and wet seasons during the seasons (fall, winter, spring) and (rainy season) (D) using the CROP WAT program, through which the climate of the study area is classified according to the Monthan Banean budget, as well as the general trend of drought according to the drought coefficient (D).

  The study relied on the data of the monthly averages of rainfall for nine climatic stations distributed over the study area geographically and for( 35) seasons for the period (1979-2014), which were downloaded from (http: // global weather data for swat.tamu. edu). The duration of the study for each of the stations in the study area was divided into two climatic periods for comparison. The first climatic period (1979-1997) was for (18) seasons, while the second climatic period (1998-2014) for (17) seasons. 

   The study found that the general trend of the drought took a decreasing trend during the seasons (fall, winter, spring) and (rainy season) for the period of study (1997-2014) for all the stations of the study area. The first climatic period (1979-1997) During the seasons (,fall winter, spring) and (rainy season) for all stations. The wet seasons for the first season were (71)% (86%) and the dry season was (29%) (14% ). The second climatic period (1998-2014) led to drought for all stations in the study area. During the seasons and the vessels of the rainy season (68%) (78%) The percentage of wet seasons stood at (32%) (22%).


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