Technical term used in meteorology, climatology, and related fields. Synonymous with 太陽放射 (たいようほうしゃ).
See also: 太陽放射
Solar radiation has a major impact on Earth's climate.
Synonym; 太陽放射 is more common in modern scientific contexts, while 太陽輻射 is an older or more formal variant.
Compound of 太陽 (sun) and 輻射 (radiation). 輻射 is a less common synonym of 放射 (radiation).