NASA set to launch new satellite to monitor rising sea level
21 Novembre, 2020, 21:39 | Auteur: Therese Cote
Climate is 80% go for the prime dispatch opportunity on Saturday and a reinforcement dispatch time on Sunday at 12:04 p.m. EST (9:04 a.m. neighborhood time and 1704 GMT).
"It's a critical observation for a number of reasons, but its power is really unleashed when we combine our altimetry observations of the sea surface height measurements with the observations we get from the other satellites in the NASA fleet and the worldwide fleet", she continued.
For researchers looking to improve their climate models, Sentinel-6's work will easily combine with other scientific missions.
Sentinel-6 is a heir of a line of satellites placed in orbit since 1992 to observe sea level. Focus on returning the flag to the expedition.
"We all know that (Earth) is undergoing enormous changes, extremely fast changes and changes we never had before on this planet with a speed and intensity caused, obviously, by humans", he said.
Josh Willis, a Sentinel-6 project scientist at NASA, said the benefits from the Sentinel-6 data will flow to almost every sector affected by climate change, given that 90% of the heat trapped by human-emitted greenhouse gases ends up in the ocean. Together, the twin satellites will carry the tradition of continuous monitoring of sea level rise into the fourth decade.
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While measurements are also taken at ground level, in harbors and other coastal areas, they don't provide the same precise uniform standard as a single satellite sweeping the entire globe every 10 days, he said.
Global sea level is rising approximately 0.13 inches (3.3 millimeters) a year.
That satellite data has shown that sea levels are not only rising, but also that the rate of increase is accelerating.
While Sentinel-6 is one of the European Union's family of Copernicus missions, its implementation is the result of a unique cooperation between ESA, Eumetsat, NASA and NOAA, with contribution from the CNES French space agency. This program maintains accurate data on the rise in sea levels of more than 90% of the oceans of the planet. While space satellites have been following that in detail for a very long time, the underlying foundations of this issue started in the mechanical unrest, when countries started consuming coal, oil and other common assets to control their economies.
In addition to measuring the height of the ocean surface, Sentinel-6's altimeter will be able to calculate the angle at which radar pulses bounce off the ocean surface, which will help scientists monitor the height of ocean waves.
"There are things worse than being trapped on the California coast", Tim Dunn, launch director for NASA's Launch Services Program, said during Friday's press conference, jokingly. While the group can't eat in cafés not surprisingly, they are as yet doing group building exercises, for example, open air porch gatherings and joint exercise, additionally outside, he said. We will have another decade of important measurements from this perspective. "It energizes us and gives us the energy to continue moving forward".
However, all worldwide passengers are required to undergo a post-flight COVID-19 test at the Hong Kong airport. But they will be subject to Singapore's quarantine arrangements such as the seven-day stay-home notice.
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