The elevation angle 0° is on the horizon, 90° is the zenith.
Difference between azimuth and orientation: The orientation refers to the cardinal points regardless of latitude (northern/south hemisphere). 0° orientation means north all over the world. Azimuth, on the other hand, is defined in the northern hemisphere so that 0° is south – where the sun always reaches its peak. In the southern hemisphere, however, an azimuth of 0° means north.
Depending on the location, the course of the sun can vary greatly during the day and throughout the year.: