How Do Gravity Anomalies Affect Earth's Shape?

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SUMMARY

Gravity anomalies significantly influence Earth's shape, with scientists visualizing these variations by mapping data onto a sphere and exaggerating the highs and lows. The discussion highlights the necessity for a color legend to interpret the gravity changes effectively, particularly to illustrate the differences between the poles and the Earth's center. Participants emphasize the importance of clear visual aids in understanding these anomalies and their implications for geophysical studies.

PREREQUISITES
  • Understanding of gravity anomalies and their impact on geophysical measurements.
  • Familiarity with data visualization techniques in scientific contexts.
  • Knowledge of Earth's geophysical properties, including polar and equatorial differences.
  • Basic skills in interpreting scientific maps and models.
NEXT STEPS
  • Research the methods for visualizing gravity anomalies using GIS tools.
  • Explore the significance of gravity variations in geodesy and Earth sciences.
  • Learn about the implications of gravity anomalies on satellite data interpretation.
  • Investigate the role of color legends in enhancing scientific data comprehension.
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Geophysicists, Earth scientists, data visualization specialists, and anyone interested in understanding the implications of gravity anomalies on Earth's shape and structure.

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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 !)
 
I do not have a good working knowledge of physics yet. I tried to piece this together but after researching this, I couldn’t figure out the correct laws of physics to combine to develop a formula to answer this question. Ex. 1 - A moving object impacts a static object at a constant velocity. Ex. 2 - A moving object impacts a static object at the same velocity but is accelerating at the moment of impact. Assuming the mass of the objects is the same and the velocity at the moment of impact...

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