Solar insolation is determined by a number of different factors. It depends on where you are on the Earth, the time of day & the time of year. It can also be affected by the orientation (or tilt) of your measuring device. The Solar (Sun) Intensity By Location and Time interactive map visualizes solar intensity (or insolation) around the world for any hour of the day or day of the year.
You can adjust the hour of the day and the day of the year using the controls above the map. The default setting is for the current time and day. Using the hour slider you can see how the sun moves east to west around the Earth over the course of the day. If you play with the day slider you can see how the seasons change as the amount of sunlight in the northern and southern hemispheres is affected by which is tilted towards the sun during that time of year.
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