What type of electromagnetic radiation can be used to monitor rainclouds?

Answer 1

Two types: 1). Radio waves, in a system configured to detect reflected radio energy, referred to as 'RADAR'. This system can reveal the presence of rainclouds that are distant but approaching, as well as their internal structure. 2). Light, detected by the human eye or other suitable detector. Accurate continuous monitoring, carried out by trained observers, instantly reveals whether or not the local domain is covered by rain clouds. When coupled with suitable devices for the detection of moisture, the simultaneously collected databases can indicate precisely when 'rain' has begun or ceased.