Ingen diastitel

1
Rapid Arctic Changes in a Paleoclimatic
Perspective Naja Mikkelsen Geological
Survey of Denmark and Greenland Denmark
2
Mare incognitum
Jeodi
3
Long term changes Tectonic evolution of the
Arctic Ocean Basin
After Green et al. 1986
4
Climate change through time
1 mio - present
10.000 - present
?
1000 - present
?
Source IPCC
5
Arctic Temperature Trends (1966 - 1995)
Ource. Chapmann et al.
6
Greenland 2.4 mio yrs ago
Greenland today
Source Funder 1996
7
Global Thermohaline Circulation
8
Source ACIA 2004
9
Future of the Arctic?
Source ACIA 2004
10
EU Project GreenICE
11
Paleoclimate and sediment coring GreenICE
2004
12
GreenICE cores Paleoclimate and environmental
changes
13
Shallow seismics GreenIce 2004
14
ACEX / IOPD 2004 Long term records
15
ACEX / IODP Long term records
Ice- house
Green- house
Source J. Mathissen, AWI
16
Climate Change and Mass Balance of Ice Cap
Sea level changes Greenland Ice cap 6.5
m Antarctic 73.5 m
Source K. Steffen, CIRES.
17
SourceGephysical Institute, Cph.
18
Authors conclude that models suggest a warming
across the Arctic that is 2-3 times that of the
global increases (IPCC).
Source ACIA 2004