Environmental Science
8 years ago

Climate change intensifies dry and wet periods in river source region.

Soil and Environmental Sciences
Climatic change of terrestrial surface humid index and its impact factors over the source region of three rivers in recent 50 years
LU Deng-rong

Paper Summary

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The study analyzed climate data from 1959 to 2008 in the source region of three rivers. They found that annual precipitation increased, especially in spring and summer. Evapotranspiration also increased, mainly in summer. The surface humid index rose, with the biggest increase in winter. Dry and wet periods alternated every 15 years, with more wet stages since 1984 and more dry stages from 1998 to 2006. The main factors affecting the surface humid index were precipitation, relative humidity, and average maximum temperature.