Loading [MathJax]/jax/output/HTML-CSS/fonts/TeX/fontdata.js
Preprints
https://doi.org/10.5194/egusphere-2024-400
https://doi.org/10.5194/egusphere-2024-400
27 Feb 2024
 | 27 Feb 2024

Cross-scale causal information flow from El Niño Southern Oscillation to precipitation in eastern China

Yasir Latif, Kaiyu Fan, Geli Wang, and Milan Palus

Abstract. The El Niño/Southern Oscillation (ENSO) is a dominant mode of climate variability influencing temperature and precipitation in distant parts of the world. Traditionally, the ENSO influence is assessed considering its amplitude. Focusing on its quasioscillatory dynamics comprising multiple time scales, we analyze causal influence of phases of ENSO oscillatory components on scales of precipitation variability in eastern China, using information-theoretic generalization of Granger causality. We uncover the causal influence of the ENSO quasibiennial component on the precipitation variability on and around the annual scale, while the amplitude of the precipitation quasibiennial component is influenced by the low-frequency ENSO components with the periods around 6 years. This cross-scale causal information flow is important mainly in the Yellow River basin, while in the Yangtze River basin the causal effect of the ENSO amplitude is dominant. The presented results suggest that in different regions different aspects of ENSO dynamics should be employed for prediction of precipitation.

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
Share

Journal article(s) based on this preprint

28 Nov 2024
| Highlight paper
Cross-scale causal information flow from the El Niño–Southern Oscillation to precipitation in eastern China
Yasir Latif, Kaiyu Fan, Geli Wang, and Milan Paluš
Earth Syst. Dynam., 15, 1509–1526, https://doi.org/10.5194/esd-15-1509-2024,https://doi.org/10.5194/esd-15-1509-2024, 2024
Short summary Chief editor
Download

The requested preprint has a corresponding peer-reviewed final revised paper. You are encouraged to refer to the final revised version.

Precipitation predictability is a complex subject, given the spatiotemporal complexity of the...
Short summary
El Niño – Southern Oscillation (ENSO) is a gigantic natural orchestra playing with temperature...
Share