Influence of Altitude on the Spatiotemporal Variations of Meteorological Droughts in Mountain Regions of the Free State Province, South Africa (1960–2013)
المؤلفون المشاركون
Manatsa, Desmond
Mbiriri, M.
Mukwada, Geoffrey
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-01-22
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
The Standardized Precipitation Index (SPI) was computed for October to December (OND) and January to March (JFM) summer subseasons for Free State Province, South Africa, to assess the influence of altitude on drought severity and frequency.
The observed spatiotemporal heterogeneity in the SPI variability revealed that factors governing drought interannual variability varied markedly within the region for the two subseasons.
Strong correlations between r=0.76 and 0.93 across the clusters in both subseasons were observed.
Significant shift in average SPI, towards the high during the OND subseason, was detected for the far western low-lying and central regions of the province around the 1990s.
An ANOVA test revealed a significant relationship between drought severity and altitude during the OND subseason only.
The impact of altitude is partly manifested in the strong relationship between meridional winds and SPI extremes.
When the winds are largely northerly, Free State lies predominantly in the windward side of the Drakensberg Mountains but lies in the rain shadow when the winds are mostly southerly.
The relationship between ENSO and SPI indicates stronger correlations for the early summer subseason than for the late summer subseason while overall presenting a diminishing intensity with height over the province.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Mbiriri, M.& Mukwada, Geoffrey& Manatsa, Desmond. 2018. Influence of Altitude on the Spatiotemporal Variations of Meteorological Droughts in Mountain Regions of the Free State Province, South Africa (1960–2013). Advances in Meteorology،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1118773
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Mbiriri, M.…[et al.]. Influence of Altitude on the Spatiotemporal Variations of Meteorological Droughts in Mountain Regions of the Free State Province, South Africa (1960–2013). Advances in Meteorology No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1118773
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Mbiriri, M.& Mukwada, Geoffrey& Manatsa, Desmond. Influence of Altitude on the Spatiotemporal Variations of Meteorological Droughts in Mountain Regions of the Free State Province, South Africa (1960–2013). Advances in Meteorology. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1118773
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1118773
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