Details zur Publikation |
| Kategorie | Textpublikation |
| Referenztyp | Preprints |
| DOI | 10.2139/ssrn.5336675 |
| Titel (primär) | Surface heating over Asian plateaus outpaces oceanic anomalies in modulating China's interdecadal rainfall patterns |
| Autor | Yao, N.; Ma, Y.; Wang, B.; Li, X.; Schlink, U.
; Ma, S.; Peng, J.
|
| Quelle | SSRN |
| Erscheinungsjahr | 2025 |
| Department | SUSOZ; RS |
| Sprache | englisch |
| Topic | T5 Future Landscapes |
| Abstract | Sensible heat flux (SH), a key surface heating factor, plays a crucial
role in the variations of China’s summer rainfall, particularly over the
Tibetan Plateau (TP) and Iranian Plateau (IP). However, the synergistic
effects of adiabatic heating over the Asian plateaus (including the
hotter and drier Mongolian Plateau (MP)) and the relative contributions
of surface heating anomalies from these Asian Plateaus (referred to as
TIMPs) and oceanic anomalies to summer precipitation in China are remain
unclear and less explored. This study reveals a decreased summer SH
over the TP, in contrast to increasing SH trends in the IP and MP during
1979-2018. These variations are closely correlated with interdecadal
changes in China’s rainfall patterns. Anomalous surface SH patterns
induce to an abnormal anticyclone and ascent motion over the MP and
Northern China, which can weaken the westerlies and the East Asian
Monsoon. Consequently, this leads to increased precipitation in the
Northwestern and Southern China and decreased precipitation in
Northeastern China. Statistical analysis indicates that the SH changes
over the TIMPs exert a more significant direct influence on China’s
rainfall patterns than sea surface temperature anomalies, with the
former’s total contributions being slightly higher but nearly equal in
magnitude against the latter. Our study suggests that SH variations over
the TIMPs are a key driver of changes in China’s precipitation,
providing new insights into the mechanisms underlying interdecadal
changes in China’s summer rainfall. |
| dauerhafte UFZ-Verlinkung | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=31098 |
| Yao, N., Ma, Y., Wang, B., Li, X., Schlink, U., Ma, S., Peng, J. (2025): Surface heating over Asian plateaus outpaces oceanic anomalies in modulating China's interdecadal rainfall patterns SSRN 10.2139/ssrn.5336675 |
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