Analysis of El Nino signals on Turkish streamflow and precipitation patterns using spectral analysis

KALAYCI S., KARABÖRK M. Ç., KAHYA E.

Fresenius Environmental Bulletin, cilt.13, sa.8, ss.719-725, 2004 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 13 Sayı: 8
  • Basım Tarihi: 2004
  • Dergi Adı: Fresenius Environmental Bulletin
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.719-725
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Interannual variability of Turkish stream-flow and precipitation patterns were analyzed in the frequency domain to justify the signals of the warm phase of the Southern Oscillation (El Nino) that were previously detected using a different approach For this purpose, spectral analysis was carried out to record these two climatic parameters from 1964 to 1993. Some statistically significant periodicities in the 2-6 years band, which are assumed to be associated with the El Nino occurrences, were found in the regional modular series of both parameters in Turkey.