Climate change just broke a NOAA algorithm

Scientists say they aren't surprised, but climate change in the Northern Arctic is happening so quickly it's forcing ...

Posted: Dec 15, 2017 2:12 AM
Updated: Dec 15, 2017 2:12 AM

Scientists say they aren't surprised, but climate change in the Northern Arctic is happening so quickly it's forcing NOAA and others to rewrite a data-correcting algorithm.

Climatology sites are very uniform and follow strict guidelines to prevent the data from being contaminated, and algorithms help remove outliers before that information gets to the final data set.

NOAA official says the Arctic is changing faster than any region

Temperatures in Utqia-vik are several degrees higher than they were two years ago

When checking November meteorological data from a site in Utqia-vik, Alaska, scientists discovered their climate monitoring station had reported no data for the entire month.

Upon closer inspection, they realized an algorithm had removed all the data from that Arctic site for the month of November; it simply thought it was an outlier.

The correctly observed data was no outlier; it was real.

The average temperatures in Utqia-vik, formerly known as Barrow, are now just that warm compared to two decades ago: 7.8 degrees warmer in October, 6.9 degrees warmer in November and 4.7 degrees warmer in December.

Later arrivals of sea ice on the coastal town in the fall is keeping temperatures warm, in addition to a myriad of other factors changing the local climate.

Chief of NOAA's Monitoring Branch National Centers for Environmental Information Deke Arndt says this is another piece of evidence that the Earth has moved into a new climate regime.

"[The Arctic] is changing faster than anywhere on the planet," Arndt says.

It's not the first time there's been a broken algorithm. Arndt says this is just the latest example; climate change has broken other algorithms at Arctic sites in Canada and Scandinavia.

Article Comments

Mason City
33° wxIcon
Hi: 37° Lo: 21°
Feels Like: 23°
Albert Lea
27° wxIcon
Hi: 34° Lo: 18°
Feels Like: 27°
30° wxIcon
Hi: 38° Lo: 19°
Feels Like: 23°
Charles City
30° wxIcon
Hi: 36° Lo: 18°
Feels Like: 20°
30° wxIcon
Hi: 32° Lo: 18°
Feels Like: 19°
Changing winds will lead to a weekend warm up
KIMT Radar
KIMT Eye in the sky

Latest Video


Coronavirus Local Business Impact


Beyond the Badge program


Chris' PM Weather Forecast 2/21


Babies Sporting Red Hats


Safe Harbor Program Faces Funding Cuts


Children's Museum


Suicide Legislation


Sara's Midday Forecast - Friday


'Spark' breaking ground


Wrench Warmers teaching life skills

Community Events