Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Science https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ NASA will launch a satellite to track rising sea levels

NASA will launch a satellite to track rising sea levels



NASA plans to launch a satellite tomorrow to track the effects of climate change on the world’s oceans and collect data to improve weather forecasts. The satellite will continue NASA’s three-decade work to document sea level rise and give scientists a more accurate view of coastlines than they ever had from space.

“The best view of the front seats of the oceans is from space,” said Thomas Zurbuchen, head of science at NASA.

The Sentinel-6 satellite Michael Freilich will launch from Vandenberg Air Force Base in California aboard the SpaceX Falcon 9 rocket. The live broadcast of the event by NASA will begin at 8:45 a.m. PT on its website, with launch expected to take place in 9:1

7 AM. The satellite is the first of a pair of ocean-focused satellites that will extend research by NASA and the European Space Agency on global sea levels for another ten years. The next satellite, Sentinel-6B, will follow in about five years. To measure sea levels, they will emit electromagnetic signals to the world’s oceans and then measure how long it takes them to bounce.

Sentinel-6 team members Michael Freilich of the European Space Agency posed with the spacecraft during processing.

Sentinel-6 team members Michael Freilich of the European Space Agency posed with the spacecraft during processing.
Image: ESA

When NASA began its work on raising sea levels in the 1990s, scientists were still curious whether predictions of the impact of climate change were coming true, according to Zurbuchen. “The question is whether the oceans are rising or not [as the planet heats up] is arranged by these satellites, it is not a question “, says Zurbuchen On the edge. “Just like the force of gravity right where I’m sitting, these oceans are rising and we have to deal with what makes our lives.”

NASA scientists will be able to make higher-resolution observations much closer to shore with the new satellites, which will allow for more accurate weather forecasts just before storms hit land. As a great storm develops over the sea, the water rises. A satellite can catch this water bubble and use this information for forecasts. Granular measurements can also be used to see how changes in sea level near coastlines can affect shipping navigation and commercial fishing.

The tides are creeping ashore as a result of climate change. This is because water expands as it heats up and because the world’s glaciers and ice sheets are melting. The encroaching water makes floods and storms increasingly dangerous. In addition, entire islands and coastal communities are sinking. This has already forced people from Louisiana to Papua New Guinea to abandon what generations have called home.

“What is the issue today, what is the impact? [of sea level rise] and what can we do about it? “Zurbuchen says. ‘These are the issues that matter to my family, to my friends, to all our families, because they affect the way our families can live in the future.’


Source link