Arctic Sea Ice Not As Bad As They Claimed??? DMI

Among the ice charts I peek at every day is the one from DMI (Danish Meteorological Institute).

Today there was a new Sea Ice Extent Chart with this text at the bottom:

The plot above replaces an earlier sea ice extent plot, that was based on data with the coastal zones masked out.

That implied that the previous sea ice extent estimates were underestimated.

The new plot displays absolute sea ice extent estimates.


Arctic Sea Ice Extent supposedly bottomed out around 2.5 million sq km according to the old chart posted by DMI for months.


Imagine my surprise when today the Sea Ice Extent bottomed out at 4 million sq km. and the chart looked like

Maybe that explains why Arctic-roos site isn’t showing any charts.


  1. What happened to that drop in ice in early august from that huge storm? It’s gone in the updated graph. Perhaps they want to erase the ice loss from that storm?


  2. It looks as if this year’s ice extent and all the past years have been shifted up by about 2 m km2. How could such a shift be justified and the implied error over the years perpetuated?


  3. Changing one’s metric *today* never justifies changing history. It is true that those who ignore history are doomed to repeat it. That is because we have much to learn from history that can help us avoid repeating it. But when we change our history for our own convenience, we lose the ability to learn from it.
    Changing your own history is lying to yourself. It doomed the civilization of the Pharaohs.
    I would rather own an ugly Timex watch that keeps good time, than the most beautiful gold and gem-encrusted Rolex that doesn’t run at all.


  4. There is still something not explained in the shifts shown in the graphs — why should the average peak be around 16 mil sq km when the old graph show all those past years average peak at 14.


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s