What Happens When NASA Loses Eyes on Earth? We’re About to Find Out
https://www.nytimes.com/2024/05/03/climate/nasa-satellites-data.htmlWhen the three orbiters — Terra, Aqua and Aura — are powered down, much of the data they’ve been collecting will end with them, and newer satellites won’t pick up all of the slack. Researchers will either have to rely on alternate sources that might not meet their exact needs or seek workarounds to allow their records to continue.
With some of the data these satellites gather, the situation is even worse: No other instruments will keep collecting it. In a few short years, the fine features they reveal about our world will become much fuzzier.
“Losing this irreplaceable data is simply tragic,” said Susan Solomon, an atmospheric chemist at the Massachusetts Institute of Technology. “Just when the planet most needs for us to focus on understanding how we are affected by it, and how we are affecting it, we seem to be disastrously asleep at the wheel.”
The main area we’re losing eyes on is the stratosphere, the all-important home of the ozone layer.
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These days, with the rise of the private space industry and the proliferation of satellites around Earth, NASA and other agencies are exploring a different approach to keeping eyes on our planet. The future may lie with smaller, lighter instruments, ones that could be put into orbit more cheaply and nimbly than Terra, Aqua and Aura were back in their day.
The National Oceanic and Atmospheric Administration is developing such a fleet for monitoring weather and climate. Dr. Loeb and others at NASA are working on a lightweight instrument for continuing their measurements of Earth’s energy balance.
But for such technologies to be useful, Dr. Loeb said, they have to start flying before today’s orbiters go dark.
“You need a good, long period of overlap to understand the differences, work out the kinks,” he said. “If not, then it’s going to be really difficult to have trust in these measurements, if we haven’t had a chance to prove them against the current measurements.”
