The Seawater Temperature Distribution In Tropics Affects The Rainfall In East Asia
A wide swatch of Asia, from the tropics to the mid-latitudes, which has wet and dry seasons, is significantly affected by “Asian monsoons.”
(From Science Daily) — The amount of rainfall in particular has a close relationship to agriculture and damage from flooding. For this reason, understanding the mechanisms of changes in the Asian monsoon and being able to forecast such changes are vital to social and economic activities in the region. It is said that from the middle to the end of the 20th century, the amount of land-based rainfall from monsoons has declined globally. Looking at regions such as East Asia, major changes have been confirmed by region over a 10-year to multiple-decade period. The mechanisms of change in regional rainfall are extremely complex, and there remained great uncertainty in making future forecasts.
The research group led by Professor Hiroaki Ueda and Assistant Professor Youichi Kamae of the University of Tsukuba, Faculty of Life and Environmental Science, performed numerical simulations using climate models, and compared the results with observational data. They found that specific trends in seawater temperatures in distant tropical regions could explain changes in recent years in the Asian monsoon, a wide-area precipitation system extending across Asia from the tropics to the mid-latitudes.
Read the full article here: http://www.sciencedaily.com/releases/2016/02/160204094920.htm