The daily-mean insolation at a latitude on a given day is the instantaneous insolation averaged over the 24 hours of that day, nights included, the declination of the Sun and its distance being held at their values for the day. It is a power per square metre of horizontal surface at the top of the atmosphere, in .
বইগুলো এখনো বাংলা ভাষায় পাওয়া যায় না — ইংরেজি সংস্করণ দেখানো হচ্ছে।
Earth and Space Sciences · পরিভাষা