Sunphotometry is a term used to describe the measurement of solar radiation and its attendant characteristics like intensity, spectral composition and the angle at which they are measured. Some synonyms for sunphotometry include solar radiometry, solar photometry, solar spectrum measurement, and solar irradiance measurement. Other relevant terms may include ultraviolet and visible spectrophotometry, atmospheric aerosol measurements, and satellite-based solar radiation sensing techniques. Sunphotometry is a critical tool in the study of climate change, as it contributes vital data about the Earth's atmosphere and its interactions with the sun's radiation. Accurate measurement and interpretation of these data informs climate modeling efforts and guides policy decision-making in fields related to energy, environment, and global security.