I am reading through 'Gravity Field of the Earth' chapter of geodesy text book. Of course, its difficult to understand for me, is there any video lectures on this topic?
Yes, there are a number of video lectures available on Gravity Field of the Earth. Below are some of the resources you can use: 1. The Gravity Field of the Earth - Lecture by Professor David E. Smith from University of Michigan: https://www.youtube.com/watch?v=8GdP_HquxN0 2. Introduction to the Earth's Gravity Field - Lecture by Professor David E. Smith from University of Michigan: https://www.youtube.com/watch?v=QfJv-hvJgj8 3. Earth's Gravity Field - Lecture by Professor J. Michael Williams from University of Maryland: https://www.youtube.com/watch?v=Jz_EerX9LYQ 4. Understanding the Gravity Field of the Earth - Lecture by Professor Paul D. Atkinson from University of North Carolina: https://www.youtube.com/watch?v=7eS-KjdKxQY