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Icy Arctic Variations in Variability

Guest Post by Willis Eschenbach A while back, I noticed an oddity about the Hadley Centre’s HadISST sea ice dataset for the Arctic. There’s a big change in variation from the pre- to the post-satellite era. Satellite measurements of ice … Continue reading ?
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Large variations in Arctic sea ice: Polar ice much less stable than previously thought

Academics / General Science : Science Daily

For the last 10,000 years, summer sea ice in the Arctic Ocean has been far from constant. For several thousand years, there was much less sea ice in The Arctic Ocean -- probably less than half of current amounts.

Arctic Albedo Variations

Academics / General Science : Watts Up With That?

Guest Post by Willis Eschenbach Anthony has just posted the results from a “Press Session” at the AGU conference. In it the authors make two claims of interest. The first is that there has been a five percent decrease in the summer ...

UKMO Hadley Centre Datasets Appear Split on Whether 2014 Will Have Record-Warm Global Sea Surfaces

Academics / General Science : Watts Up With That?

Guest Post by Bob Tisdale A few days ago, we showed that global ocean surfaces are, just barely, at record warm levels in 2014, according to the two NOAA sea surface temperature datasets. But the two UKMO sea surface temperature dat...

The CERES Calculated Surface Datasets

Academics / General Science : Watts Up With That?

Guest Post by Willis Eschenbach The CERES dataset is satellite data that is based on radiation measurements made from low earth orbit. The CERES data has two parts. The first part is observational data, measurements of downwelling a...

Upwelling Solar, Upwelling Longwave

Academics / General Science : Watts Up With That?

Guest Post by Willis Eschenbach The CERES dataset contains three main parts—downwelling solar radiation, upwelling solar radiation, and upwelling longwave radiation. With the exception of leap-year variations, the solar dataset does...

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