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NASA’s Operation IceBridge has been monitoring Arctic sea ice from planes for a decade.

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During four flights in April, it followed the orbital paths of the new ICESat-2 satellite.

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The plane and satellite measured the same stretch of sea ice at the same time.

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These images taken by IceBridge’s CAMBOT instrument show sea ice floes and leads during one of the four flights.

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A new study checks the measurements from IceBridge and ICESat-2 and finds they match almost exactly...

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…which shows the new satellite is gathering precise, high quality data over sea ice.

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