SKYNET is an observation network to understand aerosol -cloud-radiation interaction in the atmosphere. The main instruments consist of a sky radiometer and radiation instruments such as a pyranometer and pyrgeometer as a basic site, and a super site has more instruments extended for analyzing atmospheric parameters of aerosol , cloud and radiation.

The observation sites of SKYNET are located mainly in the Eastern Asia from Mongolia to Thailand as well as in Japan. The data observed at each site are collected into a site server and then transfered using an internet for super sites and sent by off-line transportation for other sites. These data arearchived into a SKYNET server in Chiba University and then open to the public.

The SKYNET is a voluntary-based activity, which is supported by many researchers and collaborators in the community.

All the researchers who are interested in are welcome to join the activity.
The analysis system of the SKYNET is also voluntary-based .
All the data are distributed to ones who are interested in under the data policy