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Ronny Berndtsson

Professor, Dep Director, MECW Dep Scientific Coordinator

Profile photo of Ronny Berndtsson

ENSO influence on rainy season precipitation over the Yangtze River Basin

Author

  • Qing Cao
  • Zhenchun Hao
  • Feifei Yuan
  • Zhenkuan Su
  • Ronny Berndtsson

Summary, in English

The paper explores the impact of El Niño-Southern Oscillation (ENSO) on rainy season precipitation properties over the Yangtze River Basin. The multi-scale moving t-test was used to determine the onset and withdrawal of the rainy season. Results showed the following: (1) Onset and withdrawal of the averaged rainy season over the Yangtze River Basin showed a similar distribution and both progressed northwards and westwards. There is a trend for delayed onset of rainy season precipitation over the Yangtze River Basin. A similar trend in the withdrawal of rainy season precipitation was not found. (2) The decaying Central and Eastern PacificWarming are indicative of wet signals in the Yangtze River Basin, with precipitation anomalies up to 25% above normal. The decaying Eastern Pacific Cooling and developing Eastern PacificWarming are indicative of dry signals over the Yangtze River Basin, with 5-20% lower than average precipitation (3) ENSO Modoki in the developing phase is more important than the developing ENSO when it comes to present wetter or drier signals. Conversely, the decaying ENSO shows more prominent wet or dry signals than the decaying ENSO Modoki.

Department/s

  • Centre for Advanced Middle Eastern Studies (CMES)
  • MECW: The Middle East in the Contemporary World
  • Division of Water Resources Engineering
  • LTH Profile Area: Water

Publishing year

2017-06-27

Language

English

Publication/Series

Water

Volume

9

Issue

7

Document type

Journal article

Publisher

MDPI AG

Topic

  • Oceanography, Hydrology, Water Resources
  • Meteorology and Atmospheric Sciences

Keywords

  • Climate
  • ENSO
  • Modoki
  • Precipitation
  • Rainy season
  • Yangtze River Basin

Status

Published

ISBN/ISSN/Other

  • ISSN: 2073-4441