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US army cuts local weather scientists off from very important satellite tv for pc sea-ice knowledge

July 6, 2025
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US army cuts local weather scientists off from very important satellite tv for pc sea-ice knowledge
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Local weather scientists in america are to be minimize off from satellite tv for pc knowledge measuring the quantity of sea ice — a delicate barometer of local weather change — because the U.S. Division of Protection publicizes plans to cancel processing of the info for scientific analysis.

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The modifications are the most recent assaults by the U.S. authorities on science and the funding of scientific analysis in an effort to slash the finances to allow tax cuts elsewhere. Already, these assaults have seen the Goddard Institute for House Research and the Nationwide Science Basis evicted from their places of work, references to local weather science faraway from web sites, funding of knowledge for hurricane forecasts cancelled, and dozens of NASA missions beneath risk and their mission groups requested to provide close-down plans because the house company’s finances is slashed.

Now, scientists on the Nationwide Snow and Ice Knowledge Middle (NSIDC), based mostly on the College of Colorado, Boulder, who’ve been utilizing knowledge from the Particular Sensor Microwave Imager/Sounder (SSMIS) that’s flown on a collection of satellites that kind america Air Pressure Protection Meteorological Satellite tv for pc Program, have been informed they’ll quickly now not have entry to that knowledge. SSMIS is a microwave radiometer that may scan Earth for ice protection on land and sea. The Division of Protection makes use of this knowledge for planning deployments of its personal ships, nevertheless it has at all times made the processed knowledge out there to scientists, too — till now.


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In an announcement on June 24, the Division of Protection declared that the Fleet Numerical Meteorology and Oceanography Middle operated by the U.S. Navy would stop the real-time processing and cease supplying scientists with the sea-ice knowledge, though NPR reports that, following an outcry on the suddenness of this determination, it has been put again to the tip of July.

Politics apart, purely from a scientific standpoint, that is insanity. The ocean-ice index, which charts how a lot ice is overlaying the ocean within the Arctic and Antarctic, is strongly dependent upon world warming, with growing common temperatures each within the ocean and within the ambiance resulting in extra sea-ice melting. Sea ice acts as a buffer to gradual and even stop the melting of enormous glaciers; take away that buffer and catastrophic melting of glaciers strikes one huge step nearer, threatening harmful sea stage rises. With out the power to trace the ocean ice, scientists are blinded to one of the crucial vital measures of local weather change and turn into unable to inform how shut we’re attending to the brink.

However there’s even a business facet to realizing how a lot sea ice is current on our oceans. The less icebergs there are, the nearer cargo ships can sail across the north pole, permitting them to take shorter, quicker routes.

A photo of the Earth's north pole showing its sea ice

The utmost extent of Arctic sea ice in 2020. (Picture credit score: NASA’s Scientific Visualization Studio.)

In fact, america is just not the one nation to function local weather devices on satellites. For example, the Japanese Aerospace Exploration Company (JAXA) has a satellite tv for pc referred to as Shizuku, extra formally often called the International Change Statement Mission-Water (GCOM-W). On board Shizuku is an instrument referred to as the Superior Microwave Scanning Radiometer 2, or AMSRS-2, which does just about the identical job as SSMIS.

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Researchers at NSIDC had already been seeking to switch over to AMSRS-2 knowledge, maybe having received wind that the Division of Protection’s determination was coming down the pipeline. However the swap will take time for the calibration of the instrument and knowledge with NSIDC’s methods, resulting in a spot in scientists’ knowledge — a blind spot in our monitoring of the local weather that we are able to in poor health afford.



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