In GPS notations, what corresponds to a one-hour measurement?

In GPS notations, the Earth's rotation is significant for understanding how measurements correspond to time intervals. The Earth rotates a full 360 degrees in approximately 24 hours. Therefore, if you break this down, the Earth rotates about 15 degrees every hour (360 degrees divided by 24 hours).

This measurement is crucial for accurately interpreting GPS data, as it relates to how satellite positioning works in conjunction with time. When you're measuring positions based on time intervals in relation to the Earth's rotation, knowing that an hour corresponds to a 15-degree shift helps in translating GPS signals into geographical locations effectively.

This understanding reinforces the importance of how time and angular measurement are interconnected in geospatial technologies, making the one-hour measurement equivalent to 15 degrees the correct choice.