Google Maps has exciting details about locations around the world. One of the most valuable things to learn about an area is its elevation. You might not know where to find elevation measurements ...

This map extract shows exact heights by a black dot with a number next to it. The number is the height above sea level in metres. The blue triangle represents a triangulation pillar; the networks ...

IceSat-2 is able to produce an elevation number to an accuracy of a little over 2cm. The AGU meeting was shown some of the first efforts to build a sea-ice thickness map for the Arctic.