AI News, Is This Twilight for the Golden Age of Earth Observation?
- On 17. februar 2018
- By Read More
Is This Twilight for the Golden Age of Earth Observation?
When leaders of the Congressional committees that approve NASA’s missions and budgets put forth their priorities in February, only space science and deep space exploration made the cut.
Conspicuously absent was Earth science—a US $2 billion function within NASA that tracks our rapidly changing“home planet.” Add in White House skepticism of climate science, and what experts call today’s “golden age” of monitoring Earth via satellite faces some serious challenges.
That age began in 2009, when President Barack Obama responded to a U.S. National Research Council warning that budget cuts had left the United States’ Earth observing system “at risk of collapse.” NASA, the lead federal agency for satellite development, saw its Earth science budget rise 56 percent between 2008 and 2016, and it placed eight new Earth-observing satellites in orbit during that period packing state-of-the-art sensors.
ICESat-2should enable measurement of annual elevation changes in ice sheets at ± 4-millimeter accuracy (and better for other targets), and at 17 times the spatial resolution of its predecessor, according to Thorsten Markus, chief of cryospheric sciences at NASA’s Goddard Space Flight Center, in Maryland.
Extending existing missions to avoid gaps in observational data creates risk, according to NASA’s Inspector General: “More than half the Agency’s 16 operating missions have surpassed their designed lifespan and are increasingly prone to failures that could result in critical data loss….” Similar risks confront the National Oceanic and Atmospheric Administration, a key partner in climate and weather observation, according to a February report by Congress’s watchdog agency the Government Accountability Office NOAA’s polar readings currently come from a dying NASA demonstration mission.
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