NOAA and NGS are currently producing a variety of podcasts on an array of topics. These include:
In this episode, we talk with NOAA Chief Geodesist Dru Smith to learn how scientists are using measurements of gravity to refine a complex mathematical model of the Earth's shape known as the geoid. Once the new model is deployed, the hope is that we'll be able to use GPS receivers to figure out our current elevation in most places across the nation within an accuracy of two centimeters or less.
How do we rely on elevation data every single day? What do geodesists need to quickly and efficiently measure heights? Learn this and more in today's Diving Deeper, an interview with Renee Shields from the National Geodetic Survey on height modernization.