Bad Sensor: Arctic Sea Ice Underestimated!

[MacUser]

Arctic Sea Ice Underestimated for Weeks Due to Faulty Sensor
http://www.bloomberg.com/apps/news?pid= ... e9swvOqwIY

Feb. 20 (Bloomberg) -- A glitch in satellite sensors caused scientists to underestimate the extent of Arctic sea ice by 500,000 square kilometers (193,000 square miles), a California- size area, the U.S. National Snow and Ice Data Center said.

The error, due to a problem called “sensor drift,” began in early January and caused a slowly growing underestimation of sea ice extent until mid-February. That’s when “puzzled readers” alerted the NSIDC about data showing ice-covered areas as stretches of open ocean, the Boulder, Colorado-based group said on its Web site.

“Sensor drift, although infrequent, does occasionally occur and it is one of the things that we account for during quality- control measures prior to archiving the data,” the center said. “Although we believe that data prior to early January are reliable, we will conduct a full quality check.’’

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Zowie... you mean we're getting wrong data? Say it isn't so!

[bibleguy]

GLOBAL WARMING IS REAL, DON'T CONFUSE ME WITH THE FACTS!!

[MacUser]

Hundreds attend Global Warming protest.