No audio available for this content. My last column highlighted an ArcGIS web application that incorporates various datasets and data layers to assist surveyors planning vertical control surveys. On ...

When looking at the elevation on a map, one might be tempted to think that height is determined by measuring straight up from ...

No audio available for this content. On Aug. 10, the National Geodetic Survey (NGS) released its latest experimental geoid model, xGeoid18. In early 2019, NGS is scheduled to release its next hybrid ...

Here’s what you’ll learn when you read this story: A new study suggests that the scientific community has been broadly misrepresenting sea level rise, especially in coastal areas of the global south, ...

ESA's GOCE mission has delivered the most accurate model of the 'geoid' ever produced, which will be used to further our understanding of how Earth work (ESA / HPF / DLR) Earlier today, March 31, the ...

Many people have been surprised by NASA’s latest visualization of Earth, which gives the planet a shape resembling a potato. However, the image does not show Earth’s actual physical shape. Instead, it ...

Gravity does not pull equally across the Earth and that has a visible impact on the shape of our planet. This summer, NASA released an eye-catching visualisation reflecting these differences across ...

A depiction of the United States geoid. Areas in yellow and orange have a slightly stronger gravity field as a result of the Rocky Mountains. Do you have access to a 3D printer? Print your own scale ...