Thursday, December 13, 2012

Seasonality

As the Earth rotates around the Sun, distance relative to the Sun changes.   This is in part due to the the tilt of the Earth.  In the Northern Hemisphere in the winter, the sun hits the Earth at a lesser angle and shorter days are experienced.  In the Southern Hemisphere it is the opposite.  To better demonstrate seasonality below are five global locations.


Oslo, Norway
Sunrise: 9:14AM
Sunset: 3:08PM
High Temp: 19 F
Low Temp: 16 F

Naples, Italy
Sunrise: 7:19AM
Sunset: 4:35PM
High Temp: 55F
Low Temp: 52F

Tunis, Tunisa
Sunrise: 7:24AM
Sunset: 5:03PM
High Temp: 63 F
Low Temp: 46 F

Ndjamena, Chad
Sunrise: 6:12AM
Sunset: 5:37 PM
High Temp: 91F
Low Temp: 51F

Cape Town, South Africa
Sunrise: 5:28AM
Sunset: 7:52 PM
High Temp: 90F
Low Temp: 68F

The First 3 pins represent the different locations starting at Oslo

Chad and Cape Town a bit harder to see


Temperatures close to the equator have little variation but as distance grows so does variation.  Sunrise and sunset times grow further apart the further apart from the equator.  To the North sunrise grows later and to the South it gets earlier.

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