Its author is a member of the staff of the United States Geological Survey, and his remarks on the methods and processes of that Survey are therefore of special interest.

What's the highest natural elevation in your state? What's the lowest? While the United States' topography provides plenty to marvel at across the map, it's not uncommon for people to take a ...

Researchers also used methods to downscale atmospheric variables, such as precipitation and temperature, from the atmosphere ...