NASA’s New 3D Model Shows Earth Is in Big Trouble

new look The world does not look like Blue Marble observations from space.

NASA has released a new geoid model that shows the shape of the Earth’s gravity. Small, irregular explosions and depressions are caused by differences in the distribution of mass within the earth. It can also be imagined how the global ocean would behave if determined by the Earth’s gravity and its rotation.

This view is an exaggerated geoid, its height multiplied by a factor of 10,000 to show the difference in gravity. NASA created this deformed world using models and data from satellites, which can detect slight differences in gravity in different areas. The plan spans 15 years and includes billions of views. NASA has also shared a 3D model of the geoid that you can explore Hereand a long video.

Measuring gravity has more value than creating an illusion that will make you question how round the world is. NASA and the European Space Agency both have satellites that observe Earth’s gravity.

These observations have been used to determine how much ice in Antarctica and Greenland is losing as the world warms. NASA satellites – which work as part of Gravity Recovery and Climate Testing (GRACE)-show that Antarctica has lost about 135 gigatons of ice per year between 2002 and 2025, while Greenland has lost 264 gigatons of ice per year over the same period. Controlling the numbers is essential to understanding the scale the seas are rising now—and how much more will arise in the future.

GRACE observations have also been used following the loss of water on the ground and drought all over the world. The data show a long-term decline in groundwater in the western US and elsewhere. It also provides information on the most severe drought: Very dry that is It is causing fire in Spain and France this summer is visible in the GRACE data. An analysis from the University of Nebraska using gravity shows that soil moisture and shallow water are both at or near the lowest point in some areas.

With climate change likely to exacerbate droughts in many areas, such assessments can provide valuable information for water managers in arid regions.

This article appeared first WIRED in Spanish and translated from Spanish.