The researchers analyzed extreme precipitation events in midsummer in Shaanxi and their connection to global sea surface temperatures. They found that extreme rainfall was more frequent in certain areas of Shaanxi during July and August. The frequency of extreme precipitation has been increasing slightly in recent years. The rate of increase was around 0.07 days per decade over the past 50 years, with notable variability in the 1970s, 1980s, and 2000s. There was a clear link between extreme precipitation frequency and sea surface temperatures in different regions and seasons. Higher temperatures in specific ocean areas were associated with increased rainfall in certain parts of Shaanxi.