Monsoon timing revealed by rain isotopes in Tianshui area.
The study looked at how stable isotopes in rainwater can help us understand the water cycle in the Tianshui area. They found that the temperature affects the isotopes differently in different seasons, with a weak link to rainfall during the monsoon. The isotopes can also show when the monsoon starts and ends, around May 7th and September 21st. Different natural conditions in the region cause variations in the isotopes, which can help us understand the local climate better.