Da Yang’s research interests focus on understanding clouds, rainstorms, and climate change. In recent work, he asked why individual convective clouds tend to organize together, forming large-scale rainstorms; what environmental factors control rainstorms’ spatial scale; and what are essential elements in forecasting rainstorms. He has also discovered that cold air rises in the tropical free troposphere (not near the surface). This discovery has led to explorations of the buoyancy effect of water vapor, which is less familiar than thermal buoyancy due to temperature contrasts.
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