Maps|Even the dog sled routes helped to assemble a map that is the most accurate icy gigantic surface.
The abstract is made by artificial intelligence and checked by man.
Researchers have put together the most accurate published map under the ice and snow. Its name is Bedmap3.
The map is based on satellite images, radar data and other sources over 60 years.
A map published by Scientific Data, Scientific Data, helps researchers predict changes in the Antarctic as the climate warms up.
The map reveals that Antarctic ice is thicker than before.
Antarctic A map of snow and ice has been collected, which is the most detailed so far.
The map is called Bedmap3. The researchers compiled information from many sources.
The most important sources were satellite images and the data offered by radar for over 60 years. The log information of the ships, photos and even compiled data from dog sled routes were also helped.
Map help researchers predict how the Antarctic is changing as the climate warms up.
Glasiologist investigating glaciers and their movements Hamish Pritchard Compare the melting water movements to a cake that gets a liquid substance on its surface.
“Imagine pouring the syrup over the cake. All the grooves and bumps on the cake surface determine where the syrup is going and what pace,” he compares in the bulletin.
Pritchard on British Antarctic Research Society (BAS) investigator. He wrote a study on how the map was assembled.
The map was published by the science magazine Nature’s Open Online Magazine Scientific Data.
If Antarctic ice melts, the resulting water must end up somewhere. Not everything ends up in the sea. Some ridges absorb some of the flowing water. Part of the presence remains in the valleys.
Bedmap3 Based on two previous maps. Already, they had been digitally removed from the Antarctic for all the ice and the snow it is known. Below is a large mainland with its peninsula and valleys.
The new map contains all information on previous maps, Bedmap1 and 2. However, the researchers compiled 52 million new data points on this map. They clearly refined the end result.
Map is coded with colors so that it shows different heights of the Antarctic bedrock above sea level.
Bedmap3 emphasizes the highest mountains on the continent and the deepest valleys.
More shapes of terrain are always revealed down to small details. In this way, the information is refined in areas that have been slightly researched and described.
The bedrock and the thickness of the ice layer were measured by radar, seismic measurements and gravity measurements.
Most snow and ice are in the eastern parts of the mainland, over four kilometers thick.
Antarctic Thickest ice is in the light of current information in an anonymous canyon Wilkesinmaa In the area in the eastern part of the Antarctic, south of the Indian Ocean.
The ice thickness is about 4.8 kilometers there. The average thickness of the continent is about 2,150 meters.
“Antarctic ice is thicker than we thought. It is more than thought on the rocky base that is below the sea level,” says Basi’s map expert Peter Fretwell.
Fretwell is concerned about the fact that part of the continent ice is below sea level. Warmed sea water can flood on that ice. It increases the risk that the melting of the ice cover will accelerate, Fretwell says According to Live Science.
“Bedmap3 shows us that Antarctica is more vulnerable than we thought,” says Fretwell.
If all the ice in the Antarctica were melted in the sea, their surface would rise by tens of meters.
Map Also reveals accurately the edges of the ice shelves floating at the edges of the Antarctic.
Antarctic was last iconic about 34 million years ago. At that time, the climate on the earth was much warmer than it is now.