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#24432 - 01/10/08 04:40 AM Updated webpage shows current above sea ice levels
JonathanLowe Offline
Member

Registered: 10/29/06
Posts: 87
Loc: Melbourne
as shown here:
current sea ice levels are still well above normal.
http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/global.daily.ice.area.withtrend.jpg

this despite global warming.

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#24658 - 01/23/08 06:17 PM Re: Updated webpage shows current above sea ice le [Re: JonathanLowe]
Blobby2 Offline
Junior Member

Registered: 01/14/08
Posts: 24
Your graph is showing that the amount of ice is decreasing by a very slight amount I cannot see how you can say that it is well above normal from your graph.
Your graph is totally at odds with the photos of the Artic ice belt that have been taken by satellite
Sat photos show that the Ice is retreating, they can be taken every day. But just one photo taken every 3 months will show you the real truth.
There is nothing worse than a graph taken about the earths condition that has different time interval steps.
Your graph has so many points in it that they could never be taken in practice. I suspect just a few points have been taken and the rest is integrated.

Thanks
Blobby2

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#24670 - 01/24/08 05:48 AM Re: Updated webpage shows current above sea ice le [Re: Blobby2]
JonathanLowe Offline
Member

Registered: 10/29/06
Posts: 87
Loc: Melbourne
blobby look at the graph down the bottom right, a few weeks ago world wide ice levels were above normal, now they are normal. There is now long term increasing or decreasing trend. You can't argue against the sats.

You mention the arctic. Yes, as shown on this graph:
http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/sea.ice.anomaly.timeseries.jpg

the arctic ice levels are amongst the lowest in the last 30 years, although there has been a massive rise in the last 3 months.

But you fail to mention the antarctic, which as shown here:
http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/current.anom.south.jpg

is at its highest level since 1979. So the arctic is at near record lows, the antarctic is at near record highs, and hence as the first graph shows, global ice levels are on average with long term increasing or decreasing trends.

Unless global warming only attacks the northern hemisphere, there appears to be no long term threat to global ice levels.

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#24673 - 01/24/08 01:33 PM Re: Updated webpage shows current above sea ice le [Re: JonathanLowe]
ImranCan Offline
Member

Registered: 09/04/07
Posts: 94
Loc: Brunei
Jonathan - great graphs .... also interesting to note that global sea surface temperatures are currently (December measurements) at their coldest since the mid 90's.

http://hadobs.metoffice.com/hadsst2/diagnostics/index.html



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#24679 - 01/25/08 12:48 AM Re: Updated webpage shows current above sea ice le [Re: ImranCan]
JonathanLowe Offline
Member

Registered: 10/29/06
Posts: 87
Loc: Melbourne
Originally Posted By: ImranCan
Jonathan - great graphs .... also interesting to note that global sea surface temperatures are currently (December measurements) at their coldest since the mid 90's.

http://hadobs.metoffice.com/hadsst2/diagnostics/index.html




Hmm, I can't get from that post how you conclude the recent december is the coldest since the mid 90s?

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#24685 - 01/26/08 05:49 AM Re: Updated webpage shows current above sea ice le [Re: JonathanLowe]
ImranCan Offline
Member

Registered: 09/04/07
Posts: 94
Loc: Brunei
Just follow the link through the global average mean and then to the actual dataset that underlies the monthly graph (the third graph on the page)- click on the "Data File".

Also, below is the direct link to the data .... and you can see that the December 2007 value is 0.114 - the last time it was this cool was January '97.

http://hadobs.metoffice.com/hadsst2/diagnostics/global/nh+sh/monthly

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