November 2, 2024

NASA’s New Global Accounting of Earth’s Rivers Reveals “Fingerprints” of Intense Water Use

Credit: NASAThe novel method to estimating river water storage and discharge likewise recognizes areas marked by fingerprints of intense water use.A study led by NASA scientists supplies new estimates of how much water courses through Earths rivers, the rates at which its flowing into the ocean, and how much both of those figures have actually fluctuated over time– vital information for comprehending the worlds water cycle and managing its freshwater products. The results likewise highlight regions diminished by heavy water usage, consisting of the Colorado River basin in the United States, the Amazon basin in South America, and the Orange River basin in southern Africa.For the study, which was recently published in Nature Geoscience, researchers at NASAs Jet Propulsion Laboratory in Southern California utilized an unique approach that integrates stream-gauge measurements with computer system models of about 3 million river segments around the world.The researchers estimate that the overall volume of water in Earths rivers on average from 1980 to 2009 was 539 cubic miles (2,246 cubic kilometers).” That way we can see where in the world the most amount of river water is kept, or where the most amount of water is being cleared into oceans from rivers,” stated Collins, now a postdoctoral scientist at the University of North Carolina at Chapel Hill.Reference: “Global patterns in river water storage dependent on residence time” by Elyssa L. Collins, Cédric H. David, Ryan Riggs, George H. Allen, Tamlin M. Pavelsky, Peirong Lin, Ming Pan, Dai Yamazaki, Ross K. Meentemeyer and Georgina M. Sanchez, 22 April 2024, Nature Geoscience.DOI: 10.1038/ s41561-024-01421-5.

Credit: NASAThe unique method to approximating river water storage and discharge also identifies areas marked by finger prints of extreme water use.A study led by NASA researchers offers brand-new price quotes of how much water courses through Earths rivers, the rates at which its flowing into the ocean, and how much both of those figures have actually changed over time– essential information for understanding the worlds water cycle and managing its freshwater products. The results also highlight regions diminished by heavy water use, consisting of the Colorado River basin in the United States, the Amazon basin in South America, and the Orange River basin in southern Africa.For the research study, which was recently released in Nature Geoscience, researchers at NASAs Jet Propulsion Laboratory in Southern California used a novel methodology that combines stream-gauge measurements with computer designs of about 3 million river segments around the world.The scientists approximate that the overall volume of water in Earths rivers on average from 1980 to 2009 was 539 cubic miles (2,246 cubic kilometers). Credit: NASAChallenges in Estimating River StorageAlthough researchers have made numerous price quotes over the years of how much water streams from rivers into the ocean, quotes of the volume of water rivers collectively hold– understood as storage– have been few and more uncertain, stated JPLs Cédric David, a co-author of the study.He compared the circumstance to spending from a monitoring account without understanding the balance.” That method we can see where in the world the most amount of river water is kept, or where the most amount of water is being cleared into oceans from rivers,” said Collins, now a postdoctoral scientist at the University of North Carolina at Chapel Hill.Reference: “Global patterns in river water storage dependent on house time” by Elyssa L. Collins, Cédric H. David, Ryan Riggs, George H. Allen, Tamlin M. Pavelsky, Peirong Lin, Ming Pan, Dai Yamazaki, Ross K. Meentemeyer and Georgina M. Sanchez, 22 April 2024, Nature Geoscience.DOI: 10.1038/ s41561-024-01421-5.