How Do Gravity Anomalies Affect Earth's Shape?

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Gravity anomalies are subtle variations in Earth's gravitational field that are not detectable by human senses. Scientists have visualized these anomalies by mapping the data onto a sphere and exaggerating the differences to highlight the highs and lows. There is a call for a color legend to clarify the degree of gravitational change represented by different colors, which would enhance the map's usability. The discussion emphasizes the need for accuracy, particularly in demonstrating the expected differences in gravity between the poles and the Earth's center. Overall, a color legend would provide essential context for interpreting these gravity anomaly maps effectively.
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"These gravity anomalies, as they are known, are imperceptible to the human senses, and so the scientists have wrapped the data on to a sphere and exaggerated the highs and lows."

http://news.bbc.co.uk/2/hi/science/nature/3093927.stm
 
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Wow, that's good, but wouldn't it be great if they put a color legend so that we know how much change in gravity does the colors mean ? (and therefore, it will turn out usefull :smile:).
Also (as soon as we have a color legend), we can make sure it is right, cause ... the difference of gravity between the poles and center of Earth should be easy to see in this kind of maps, shouldn't it ? (cause i don't see it !)
 

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