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Long-Term Variability of Gauged Precipitation Over California and Its Links to Circulation Patterns

  • Luciano Rodriguez
  • Cyril Rakovski
  • Mohamed Allali
  • Hesham El-AskaryEmail author
Chapter
Part of the Advances in Science, Technology & Innovation book series (ASTI)

Abstract

California is an area of diverse topography and has what many scientists call a Mediterranean climate. Various precipitation spatial and temporal patterns exist due to El Niño Southern Oscillation (ENSO) which can cause abnormal precipitation or droughts. As temperature increases due to the rise of CO2 in the atmosphere, it is rapidly changing the climate of not only California but the world. Using NOAA’s hourly precipitation data from rain gauges and modeled data, we performed an extensive analysis (Empirical Mode Decomposition) with SOI, PDO, and AMO to depict ENSO patterns. We found that indices have a stronger relationship with the gauge datasets than the modeled data. Also, SOI has a stronger correlation to the northern regions of California and PDO to the southern. Lastly, AMO shows insignificant correlations in California.

Keywords

Precipitation Time series ARMA/ARIMA Climate ENSO 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Luciano Rodriguez
    • 1
  • Cyril Rakovski
    • 1
  • Mohamed Allali
    • 1
  • Hesham El-Askary
    • 2
    • 3
    • 4
    Email author
  1. 1.School of Computational SciencesSchmid College of Science and Technology, Chapman UniversityOrangeUSA
  2. 2.School of Earth and Environmental SciencesSchmid College of Science and Technology, Chapman UniversityOrangeUSA
  3. 3.Center of Excellence in Earth Observing, Chapman UniversityOrangeUSA
  4. 4.Department of Environmental Sciences, Faculty of ScienceAlexandra UniversityAlexandriaEgypt

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