Astroclimatology of ESO Sites
ESO WIDE REVIEW
M. Sarazin, April 2000, 3/10
|CLOUDINESS - DIFFERENTIAL|
Differential of the monthly fraction of photometric nights at Paranal and La Silla since the beginning of the VLT
site survey. La Silla currently tops its 10-11 years cycle while Paranal experiences La Nina related
weather degradation: the combination of both effects cancels the differences between the two sites.