Gravity is determined by mass. Earth’s mass is not distributed equally, and it also changes over time. This visualization of a gravity model (the geoid) was created with data from NASA’s Gravity Recovery and Climate Experiment (GRACE) and shows variations in Earth’s gravity field. Red shows areas where gravity is relatively strong, and blue reveals areas where gravity is weaker.
Originally uploaded in GETSI:What is Geodesy?.
Image 83382 is a 350 by 350 pixel GIF
Uploaded: Oct26 19