精品SM在线影片

A new center led by 精品SM在线影片 will undertake research to make the region of space between Earth and the moon a little safer鈥攑otentially helping satellites navigate through this tumultuous and sometimes hazardous environment.听

This summer, NASA announced that it had selected four , including the Space Weather Operational Readiness Development (SWORD) center at 精品SM在线影片. As its name suggests, the nearly $10 million center will offer some powerful protection for the planet: SWORD research will seek to help scientists develop more accurate and timely conditions of the 鈥渟pace weather鈥� hundreds of miles above the surface of Earth鈥攚here impacts from solar storms can increase the risk of satellite collisions and interfere with communications and navigation.听

SWORD emerged from the Space Weather Technology, Research and Education Center (SWx TREC), which was funded through the 精品SM在线影片 Grand Challenge initiative 鈥淥ur Space. Our Future.鈥� SWORD is a university-wide effort, tapping expertise from the听Ann and H.J. Smead Department of Aerospace Engineering Sciences; (CIRES); and (LASP).

鈥淭his important award is the result of years of investment and collaboration across our campus,鈥� said Massimo Ruzzene, vice chancellor for research and innovation and dean of the institutes at 精品SM在线影片. 鈥淲ith added contributions from our renowned research institutes, our College of Engineering and Applied Science and partners beyond our campus, this kind of impact is only possible through the cross-disciplinary approach that makes 精品SM在线影片 so unique.鈥�

The center also includes researchers from the National Center for Atmospheric Research (NCAR) High Altitude Observatory, the University of Alaska, University of Iowa, University of Michigan and the NASA Langley Research Center. The project听is听a testament to 精品SM在线影片鈥檚 decades of research leadership in investigating the deep connections between Earth and the sun.听

In emphasizing the need for the SWORD center, Tom Berger, the principal investigator, noted that forecasting weather in space isn鈥檛 as easy as forecasting it on the ground in Boulder.听

鈥淭he space weather system is more complex,鈥� said Berger, executive director of SWx TREC. 鈥淵ou've got magnetic fields. You've got electric currents and plasmas. The solar radiation is changing all the time in ways that really affect the atmosphere.鈥�

Through SWORD, he and his colleagues will conduct research to improve the computer simulations, or models, that scientists use to forecast those shifts. That includes how those models can pull in real-time observations from space. Berger hopes that one day these tools could help operators protect satellites in orbit in the same way that ship captains use weather reports to steer clear of dangers at sea.听

Safe harbor

The consequences of fluctuations in space weather can be serious. In February 2022, dozens of satellites in orbit around Earth were lost during what scientists call a 鈥済eomagnetic storm.鈥澨�

Berger explained that Earth鈥檚 upper atmosphere doesn鈥檛 stay still during these storms. Instead, it expands or shrinks by hundreds of miles depending on radiation coming from the sun and electrical currents in the ionosphere鈥攁lmost as if the planet itself is breathing. Several days before the satellites鈥� launch, the sun experienced a particularly large magnetic eruption, ultimately causing Earth鈥檚 atmosphere to puff up just as the satellites reached low Earth orbit. They were dragged back into the atmosphere where they burned up on re-entry.

Today, scientists at the led by the U.S. National Oceanic and Atmospheric Administration forecast these kinds of events using a suite of models. The tools seek to replicate the complex physics in space, entirely from a computer screen on Earth. But that isn鈥檛 easy.

鈥淥ne of the challenges in space weather modeling is that you don鈥檛 have one model. You have many separate models,鈥� Berger said. 鈥淲e use one model for the sun and solar wind, one model for Earth's magnetic field and another for the upper atmosphere and ionosphere and so on.鈥澨�

The team鈥檚 work could, ultimately, help the Space Weather Prediction Center build better tools for making up-to-date forecasts of conditions in space. The research may also benefit U.S. Space Force and civilian space traffic managers as they keep track of the ever-growing number of satellites and debris objects in orbit. 听

As a start, SWORD researchers will lay the groundwork to help these models work better together. Berger added that weather forecasts are so accurate on Earth, in part, because scientists are constantly feeding them with real-world data鈥攕uch as readings of barometric pressures, wind speeds and more. He and his colleagues hope to do the same with space weather forecasts, incorporating data from satellites already in orbit. Berger sees a day when satellites can use their GPS navigation data to provide space weather forecasters with up-to-the-minute reports about what鈥檚 happening in space.

鈥淭hen satellite operators can assess collision risks and plan avoidance maneuvers more reliably, particularly during space weather storms,鈥� he said.