In Brief: This is Antarctica as you’ve never seen it before. Scientists have recently released what is considered right now the most accurate, high-resolution terrain map of the icy continent ever released.
Researchers have mapped the Antarctic continent’s terrain in an unprecedented detail, obtaining what is considered the most accurate high-resolution map of its kind, and the most accurate high-resolution map for any continent on Earth.
The new map has a stunning resolution of 2 to 8 meters – compared to previous standard charts of 1,000 meters. This means that you now have the ability to explore Antarctica in a never-before-seen way.
Comparison between prior available surface imaging (left) and REMA (right) shows dramatically improved detail. Image Credit.
And as you’ve probably imagined by now, the map is huge. In fact, it’s so big that it occupies 150 terabytes on a computer.
The newly released map—called the Reference Elevation Model of Antarctica or REMA, was created by scientists from Ohio State University who collaborated with Polar Geospatial Center at the University of Minnesota and the University of Illinois.
Ian Howat, professor of Earth sciences and director of the Byrd Polar and Climate Research Center at The Ohio State University explained: “It is the highest-resolution terrain map by far of any continent. Up until now, we’ve had a better map of Mars than we’ve had of Antarctica. Now it is the best-mapped continent.”
The map is expected to help researchers understand the icy continent better while revolutionizing the way we study Earth’s coldest continent. In fact, REMA is expected to aid scientists in planning new excursions to Antarctica, helping them navigate through treacherous, unforgiving terrain.
Unlike previous terrain maps of Antarctica, REMA offers scientists an incredible view of features that were blurred or not visible in previous maps.
Comparing REMA to older maps of Antarctica shows just how good the new map is.
“At this resolution, you can see almost everything,” said Ian Howat.
“We can actually see variations in the snow in some places. We will be able to measure changes in the surface of the continent over time. We will see changes in snow cover, changes in the motion of ice, we will be able to monitor river discharge, flooding, and volcanoes. We will be able to see the thinning of glaciers,” added Howat.
To assemble the map, scientists used the Blue Waters supercomputer to help process the massive data files. They then used software designed by experts at the Byrd Center that allowed them to properly assemble overlapping satellite images, obtaining one massive, beautiful map of the Antarctic continent.
“The software had to filter data, process it, and turn it into a refined product for the scientific and broader community to use,” explained Howat.
via Ancient Code