The asymmetric response of Yangtze river basin summer rainfall to El Niño/La Niña

Video thumbnail (Frame 0) Video thumbnail (Frame 75) Video thumbnail (Frame 196) Video thumbnail (Frame 392) Video thumbnail (Frame 625) Video thumbnail (Frame 684) Video thumbnail (Frame 746) Video thumbnail (Frame 815) Video thumbnail (Frame 894) Video thumbnail (Frame 1094) Video thumbnail (Frame 1205) Video thumbnail (Frame 1686) Video thumbnail (Frame 1788) Video thumbnail (Frame 2241) Video thumbnail (Frame 2460) Video thumbnail (Frame 2616) Video thumbnail (Frame 2842) Video thumbnail (Frame 3254) Video thumbnail (Frame 3366) Video thumbnail (Frame 3475) Video thumbnail (Frame 3863)
Video in TIB AV-Portal: The asymmetric response of Yangtze river basin summer rainfall to El Niño/La Niña

Formal Metadata

Title
The asymmetric response of Yangtze river basin summer rainfall to El Niño/La Niña
Title of Series
Author
License
CC Attribution 3.0 Unported:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
Publisher
Release Date
2018
Language
English

Content Metadata

Subject Area
Abstract
The Yangtze river basin, in South East China, experiences anomalously high precipitation in summers following El Niño. This can lead to extensive flooding and loss of life. However, the response following La Niña has not been well documented. In this study, the response of Yangtze summer rainfall to El Niño/La Niña is found to be asymmetric, with no significant response following La Niña. The nature of this asymmetric response is found to be in good agreement with that simulated by the Met Office seasonal forecast system. Yangtze summer rainfall correlates positively with spring sea surface temperatures in the Indian Ocean and northwest Pacific. Indian Ocean sea surface temperatures are found to respond linearly to El Niño/La Niña, and to have a linear impact on Yangtze summer rainfall. However, northwest Pacific sea surface temperatures respond much more strongly following El Niño and, further, correlate more strongly with positive rainfall years. It is concluded that, whilst delayed Indian Ocean signals may influence summer Yangtze rainfall, it is likely that they do not lead to the asymmetric nature of the rainfall response to El Niño/La Niña.

Related Material

Video Summer (George Winston album) Rain
Climate Aerodynamics Winter Cardinal direction Summer (George Winston album) Sommer Rain Rain Asymmetric digital subscriber line
Video Rain Sea surface temperature
Colorfulness Cardinal direction Contrast (vision) Near field communication Rain
Year Summer (George Winston album) Rain Sea surface temperature
Roll forming Winter Meteorology Stellar atmosphere Rain
Schwache Lokalisation Stellar atmosphere Cardinal direction Meteorology Summer (George Winston album) Rain Sea surface temperature
Atmospheric pressure Control system
Weather forecasting Season Summer (George Winston album) Rain
the Yangtse river basin in southeast China often experiences high rainfall during summers following winter
and the new events which are represented by unusually warm sea-surface temperatures in the tropical Pacific this can lead to extensive
flooding and consequent risk to
lives and livelihoods however the amount
of rainfall following a line in your hands
represented by unusually cold sea surface temperatures in the tropical Pacific has not been well documented we might expect
the rainfall in southeast China to be less less after landing near events however in contrast to the increased rainfall response following El Niño events Our research finds no significant rainfall response following landing the events the colors of the
different responses can be traced to the northwest Pacific sea-surface temperatures respond much more strongly following Almunia than they do following landing furthermore the sea surface temperatures correlate strongly with the ANSI summer rainfall in the years where
higher than average rainfall is experienced in the the river basin an
unusually strong high pressure system forms in the atmosphere over the northwest Pacific following winter and the new
events interaction between the atmosphere and the local sea surface temperatures allows this to persist into the following summer during the summer this
high pressure system causes more moisture bearing to travel from the South China Sea crust southeast China to the Yangtze river basin enhancing the rainfall in this region there is no
opposing response following landing this increased understanding of the
Yangtse summer rainfall responds to both Almunia and learning the event should aid interpretations seasonal forecasts of Yangtse summer rainfall and inform how they are used
Feedback