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Rainfall fluctuation for exploring desertification and climate change : new aridity classification
المؤلفون المشاركون
al-Qinna, Muhammad I.
Salahat, Muhammad A.
المصدر
The Jordan Journal of Earth and Environmental Sciences
العدد
المجلد 7، العدد 1 (30 يونيو/حزيران 2015)، ص ص. 27-35، 9ص.
الناشر
الجامعة الهاشمية عمادة البحث العلمي و الدراسات العليا
تاريخ النشر
2015-06-30
دولة النشر
الأردن
عدد الصفحات
9
التخصصات الرئيسية
الموضوعات
الملخص EN
The research community in Jordan is basically relying on universal defined aridity classifications, which do not consider the local conditions of Jordan and climate change effects on Jordan.
The present study aims at producing a customized aridity classification that better fits the conditions of Jordan.
Monthly rainfall data for the period between 1961-2012, for 22 weather stations covering the whole country, were obtained from Jordanian Meteorological Department (JMD).
A ten-year moving average was calculated and used for conducting a historical trend analysis and generating aridity spatial maps.
Monthly, annual, and ten years moving average aridity trends were tested using Tukey test, Mann-Kendall rank, and a simple linear regression.
According to the historical trend analysis, rainfall across the country is significantly (< 0.0001) spatially and temporally distributed, where 90% of the country falls within arid to semi-arid classes.
Climate change impacts in Jordan resulted in a shorter rainy season with lower amounts of precipitation and the number of rainfall events.
The overall annual rainfall tended to decrease significantly (P<0.05) by time with an average reduction rate of 1.1 mm per year.
Although the overall trend for most of the rainfall stations was decreasing, individual annual rainfalls analysis indicated the possibilities of extreme events to occur at some locations.
The overall trend showed that more frequent drought seasons are expected.
According to the new generated aridity classification maps, the country is suffering from a severe shifting to lower rainfall means.
The southern and the northern-eastern parts shifted from strongly arid (100-150 mm) into hyper arid class (< 100).
Moreover, west-middle part also shifted to moderately arid class (150 – 200 mm).
On the other hand, the most obvious shift occurred at the semiarid classes especially the slightly and moderately subclasses.
Currently, the wettest two classes (sub-humid and slightly semi-arid) are not present in the map and shifting towards a strongly semi-arid class.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Salahat, Muhammad A.& al-Qinna, Muhammad I.. 2015. Rainfall fluctuation for exploring desertification and climate change : new aridity classification. The Jordan Journal of Earth and Environmental Sciences،Vol. 7, no. 1, pp.27-35.
https://search.emarefa.net/detail/BIM-646211
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Salahat, Muhammad A.& al-Qinna, Muhammad I.. Rainfall fluctuation for exploring desertification and climate change : new aridity classification. The Jordan Journal of Earth and Environmental Sciences Vol. 7, no. 1 (Jun. 2015), pp.27-35.
https://search.emarefa.net/detail/BIM-646211
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Salahat, Muhammad A.& al-Qinna, Muhammad I.. Rainfall fluctuation for exploring desertification and climate change : new aridity classification. The Jordan Journal of Earth and Environmental Sciences. 2015. Vol. 7, no. 1, pp.27-35.
https://search.emarefa.net/detail/BIM-646211
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 35
رقم السجل
BIM-646211
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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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
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