LeBrok
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Thanks to recent works of many researchers we are getting a clearer picture of climatic events in Northern hemisphere with emphases on Europe. I would like to present the most detailed temperature charts of Northern Europe for last 2,000 years.
Here is the map, with overlaid finer scale.
Black lines:
- 0 C - current median summer temperature
- around +1 C - warmest temp during Roman Empire.
Red line shows gradual cooling of 0.3 C per millennium
This research is validated by other dendrochronologists who recreated temperature record for last 400 years:
Researchers from the Institute of Geography in Moscow, Hohenheim University and the Helmholtz Centre for Environmental Research
http://www.ufz.de/index.php?en=19808
Here is a map of Greenland temperatures derived from ice cores. Showing the whole helocen cycle on Greenland, based on data NOAA Paleoclimatology.
http://www.ncdc.noaa.gov/paleo/metadata/noaa-icecore-2475.html
And ploted by http://alethonews.wordpress.com/2010/01/16/climate-science-models-vs-observations/
Last 2.5k years:
Note that lighter line is from station in Antarctic and shows mostly negative mirroring.
July 9, 2012 — An international team that includes scientists from Johannes Gutenberg University Mainz (JGU) has published a reconstruction of the climate in northern Europe over the last 2,000 years based on the information provided by tree-rings. Professor Dr. Jan Esper's group at the Institute of Geography at JGU used tree-ring density measurements from sub-fossil pine trees originating from Finnish Lapland to produce a reconstruction reaching back to 138 BC. In so doing, the researchers have been able for the first time to precisely demonstrate that the long-term trend over the past two millennia has been towards climatic cooling.
http://www.sciencedaily.com/releases/2012/07/120709092606.htm
Here is the map, with overlaid finer scale.
Black lines:
- 0 C - current median summer temperature
- around +1 C - warmest temp during Roman Empire.
Red line shows gradual cooling of 0.3 C per millennium
This research is validated by other dendrochronologists who recreated temperature record for last 400 years:
Researchers from the Institute of Geography in Moscow, Hohenheim University and the Helmholtz Centre for Environmental Research
http://www.ufz.de/index.php?en=19808
Here is a map of Greenland temperatures derived from ice cores. Showing the whole helocen cycle on Greenland, based on data NOAA Paleoclimatology.
http://www.ncdc.noaa.gov/paleo/metadata/noaa-icecore-2475.html
And ploted by http://alethonews.wordpress.com/2010/01/16/climate-science-models-vs-observations/
Last 2.5k years:
Note that lighter line is from station in Antarctic and shows mostly negative mirroring.