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Home / Science / The Earth thought in 45 percent more rivers and streams than previously thought study

The Earth thought in 45 percent more rivers and streams than previously thought study



The mouth of the Amazon recorded by a NASA satellite

(NASA)

  • Using satellite imagery and specialized software, researchers found 45 percent more rivers and streams than previously thought
  • impacts on climate change research

] According to a new study, our planet is covered by 45 percent more rivers and streams than scientists previously estimated.

Thousands of images from a NASA Landsat satellite were analyzed and developed on the -ground measurements and software by University of North Carolina hydrologist Tamlin Pavelsky, who mapped the rivers and streams of Earth except land with glaciers , They discovered that there are nearly 300,000 square miles of rivers and streams – more than the area of ​​Texas and 45 percent more area than previously thought.

The study published on Thursday in Science Magazine has implications for the study of climate change. A larger river surface indicates that rivers are likely to exchange more carbon dioxide with the atmosphere than previously thought

(MORE: America's 10 Most Vulnerable Rivers for 2018 )

"Like us In order to mitigate the effects of climate change, it is very important that we understand exactly where the carbon we emit is going and exactly quantify the global carbon cycle Pavelsky said in a press release, "Our new calculation will help To better estimate how much carbon dioxide is released into the atmosphere from rivers and streams each year. "

The researchers say that this study has been different from previous studies in that it identified" both the smallest flows and the largest flows of World by measurements on-site and satellite imagery "instead of just" theoretical extrapolations small men actual data ".

NASA will use the data to identify river segments during their upcoming Surface and Ocean Topography (SWOT) satellite mission, which will commence in 2021.


The most important journalistic mission of the Weather Society is to report on the current weather reports, the environment and the importance of science for our lives. This story does not necessarily represent the position of our parent company IBM.


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