The strength of the sun's ultraviolet (UV) radiation is expressed as a Solar UV Index or Sun Index.The UV Index does not exceed 8 in the UK (8 is rare; 7 may occur on exceptional days, mostly in the ...
Zephyr is the name for any prevailing warm and gentle westerly breeze at the time of the summer solstice in the N hemisphere. The name derived from Zephyros was the Greek god of the west wind, which ...