The study, published in Geology, re-provides the first time researchers have quantified the precipitation that will have been provided on the planet, and is revealed when the Perseverance Mars 2020 rover heads to the red planet to land on one of the lake beds. are very important for this new investigation.
The ancient climate of Mars is an enigma for scientists. For geologists, the lifestyle of riverbeds and paleolagos, basins of centuries-old lakes, paints the image of a planet with precipitation or thaw. But scientists who specialize in computer models of the planet’s climate have been unable to reproduce an ancient climate with giant amounts of liquid water that provide enough time to account for the observed geology.
“This is incredibly vital because 3.5 to 4 billion years ago, Mars was covered in water. There was a lot of rain or snow melted to fill those canals and lakes,” said director Gaia Stucky de Quay, a postdoctoral fellow at Jackson School in UT. Geosciences.Array “Now it is absolutely dry. We’re looking to find out how much water there was and where it all went.”
Although scientists have discovered giant amounts of frozen water on Mars, there is no amount of liquid water lately.
In the study, the researchers found that rainfall should be between four and 159 meters (13 to 520 feet) in an episode of singleness to fill the lakes and, in some cases, provide enough water to overflow and drill the lake basins. Although the diversity is wide, it can be used to perceive which weather models are accurate, Quay’s Stucky said.
“It’s massive cognitive dissonance,” he says. “Climate models are having difficulty taking this amount of liquid water into account at that time. It’s like liquid water possible, but it’s happening. It is the lack of wisdom that our paintings seek to fill.
Scientists tested 96 open and closed basin lakes and watersheds, and all are believed to have formed between 3,5 billion and 4 billion years ago. Open lakes are those that have been damaged by overflows of water; closed ones, on the other hand, are intact. Using satellite imagery and topography, they measured the areas of lakes and basins, as well as the volumes of the lakes, and took into account the prospective evaporation of the amount of water needed to fill the lakes.
By examining the ancient closed and open lakes and the valleys of the rivers that fed them, the team was able to obtain a minimum and maximum amount of precipitation. Closed lakes provide an overhaul of the maximum amount of water that may have once fallen without getting married without drilling the lake basin. Open lakes show the minimum amount of water needed to exceed the lake basin, causing the water to break in one aspect and precipitate.
In thirteen cases, the researchers discovered docked basins, containing a closed basin and an open basin fed through the same river valleys, which provided key evidence of maximum and minimal precipitation at a single event.
Another unknown is the duration of the rainy or thaw episode: days, years or thousands of years. This is the next step in the search, Quay’s Stucky said.
At the time of the publication of this research, NASA recently introduced the March 2020 Perseverance Rover to make a stopover on the heero crater, comprising one of the open lake beds used in the study. Co-author Tim Goudge, assistant professor in the Department of Geological Sciences at UT Jackson School, the main clinical advocate for the landing site. He said knowledge gathered through the crater can be vital in determining the amount of water on Mars and whether there are symptoms beyond life.