Svalbard Warmer in the Middle Ages
January 15, 2012
By Paul Homewood
In 2006 a paper “Svalbard summer melting, continentality, and sea ice extent from the Lomonosovfonna ice core” was published in the Journal of Geophysical Research. Using analysis of ice cores, it concluded :-
“The degree of summer melt was significantly larger during the period 1130–1300 than in the 1990s. “
Of course the Vikings knew that already.
Reference : “Svalbard summer melting, continentality, and sea ice extent from the Lomonosovfonna ice core”
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Few people alive today were around during the period 1130–1300, so it’s reasonable to expect they’re likely to believe almost anything they’re told by scientists with ‘advanced knowledge’ of historic climate, erm, hang on, no scientists have that advanced knowledge.
The glacier is only 800 year since they reached the bottom of the glacier:
“In April of 1997 a 121 m deep ice core was retrieved from Lomonosovfonna, the highest ice field at Spitsbergen (1230 m asl). The drilling was a collaboration between scientists from Norway, Finland, Sweden, and The Netherlands. Radar measurements at the core site suggested that the bottom was nearly reached. Dating with a glaciological flow model (Nye, 1963) suggest that the core contains about 800 years of climate and environmental information. ”
http://thule.oulu.fi/narp/Projects/a_natural/Isaksson.htm
Still they claim: “The d18O data from these ice cores suggest that the 1900s was by far the warmest century during the past 800 years.”
They forgot to mention temperatures from more than 800 years ago, when it was warmer than in our time.
Trees from 800 years ago are reappearing as Alaskan glaciers recede as well.
“The earliest record of growth is from a log at location 1 (Figure 10) that was growing by ad 1306; this requires the terminus of Ultramarine glacier to be up valley of this position at that time”.
More detailed information:
“…..present evidence for microbes having survived more than 1100 years
in a subglacial, permafrozen state.”
Click to access Humlum%20et%20al_2005_Late-Holocene%20glacier%20growth%20in%20Svalbard,.pdf