ENSO combination mode and its influence on seasonal precipitation over southern China simulated by ECHAM5/MPI-OM
| Autor: | Fei Zheng, Hao Luo, Shengjie Yi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
ECHAM5/MPI-OM
lcsh:GE1-350 Atmospheric Science 010504 meteorology & atmospheric sciences Mode (statistics) precipitation 010502 geochemistry & geophysics Oceanography 01 natural sciences C-mode lcsh:Oceanography El Niño Southern Oscillation Southern china Climatology Southern China parasitic diseases Environmental science Precipitation lcsh:GC1-1581 lcsh:Environmental sciences 0105 earth and related environmental sciences |
| Zdroj: | Atmospheric and Oceanic Science Letters, Vol 12, Iss 3, Pp 184-191 (2019) |
| ISSN: | 2376-6123 1674-2834 |
| Popis: | Recent studies show that a combination mode (C-mode) represents the seasonally modulated dynamics of ENSO, which plays an important role in maintaining the western North Pacific anomalous anticyclone. This C-mode could obviously influence the East Asian climate, especially since the contribution of ENSO to southern China’s precipitation has weakened since the late 1990s. This paper evaluates whether the C-mode and its influences on precipitation over southern China can be realistically described by the climate model ECHAM5/MPI-OM. The authors find that the model is able to reproduce the spatial and temporal variability of the C-mode and the asymmetric responses of air–sea variations in the tropical Pacific. The model also reveals the observed significant effects of the C-mode on the wintertime and springtime rainfall over southern China during El Niño events. The findings have implications for ECHAM5/MPI-OM being a valuable tool for simulating and predicting the C-mode-related seasonal precipitation over southern China. |
| Databáze: | OpenAIRE |
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