Stratus cloud supersaturations

James G. Hudson, Stephen Noble, Vandana Jha

Geophysical Research Letters · 2010 · 53 citations · 18 references

DOIFull text

Open access

Concepts

Abstract

A wide range of California coastal stratus cloud droplet concentrations (N c ) were compared with CCN spectra to provide numerous estimates of cloud supersaturations (S). These revealed the predicted decrease of S with higher CCN concentrations (N CCN ). A significant result was frequent stratus cloud S significantly above 0.3%, especially for more maritime N CCN and N c (i.e., <300 cm −3 ). This means that much smaller and more numerous particles than previously considered interact with the most important clouds for the indirect aerosol effect.

References

18