Here is a list of the main networks about photometry, and some useful resources:
- AErosol Robotic NETwork (AERONET) https://aeronet.gsfc.nasa.gov/
- SKY radiometer NETwork (SKYNET) https://www.skynet-isdc.org/
- Global Atmosphere Watch Precision Filter Radiometer (GAW-PFR) https://gawpfr.pmodwrc.ch/
If you are interested in broadband radiation measurements in Antarctica you can visit:
- Antarctic Radiation Regional Network (ARRN) https://www.antrad.net/