ENSO MODULATIONS ON STREAMFLOW CHARACTERISTICS
Küçük Resim Yok
Tarih
2010
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
UNIV NACIONAL DE COLOMBIA
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
El Nino Southern Oscillation (ENSO) has been linked to climate and hydrologic anomalies throughout the world. This paper presents how ENSO modulates the basic statistical characteristics of streamflow time series that is assumed to be affected by ENSO. For this we first considered hypothetical series that can be obtained from the original series at each station by assuming non-occurrence of El Nino events in the past. Instead those data belonging to El Nino years were simulated by the Radial Based Artificial Neural Network (RBANN) method. Then we compared these data to the original series to see a significant difference with respect to their basic statistical characteristics (i.e., variance, mean and autocorrelation parameters). Various statistical hypothesis testing methods were used for four different scenarios. Consequently if there exist a significant difference, then it can be inferred that the ENSO events modulate the major statistical characteristics of streamflow series concerned. The results of this research were in good agreement with those of the previous studies.
Açıklama
Anahtar Kelimeler
Streamflow, ENSO Modulation, Radial Based Artificial Neural Network Model, Turkey
Kaynak
EARTH SCIENCES RESEARCH JOURNAL
WoS Q Değeri
Q4
Scopus Q Değeri
Cilt
14
Sayı
1
