Hindcasts using the Rahmstorf 2007 model
On realclimate.org Rahmstorf critizes our model (Grinsted et al., 2009) on the basis that it has too low sensitivity (m/ºC) when extrapolated to a 65 m rise in sea level.
Jun 7, 2013Home
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Ice conditions in the Danish waters 690-1860 A.D.
In 1915 C. J. H. Speerschneider from DMI compiled alot of evidence regarding past ice conditions in Danish waters. My colleague J.P. Steffensen found it in a pile of books being thrown out and saved …
Jun 7, 2013 -
Model validation
Here is a finite element simulation of strong winds in the Scharffenbergbotnen blue ice area.
Jun 7, 2013 -
Estimating global glacier volume
I have recently written a paper where I estimate global glacier volume to be 35 cm using a statistical approach .
Jun 7, 2013 -
Continuous monitoring of summer surface water vapour isotopic composition above the Greenland Ice Sheet
We present here surface water vapor isotopic measurements conducted from June to August~2010 at the NEEM camp, NW-Greenland (77.45° N 51.05° W, 2484 m a.s.l.). Measurements were conducted at 9 …
Apr 29, 2013 -
Eemian interglacial reconstructed from a Greenland folded ice core
Efforts to extract a Greenland ice core with a complete record of the Eemian interglacial (130,000 to 115,000 years ago) have until now been unsuccessful. The response of the Greenland ice sheet to …
Dec 24, 2012 -
Potential for bias in 21st century semi-empirical sea level projections
We examine the limitations of a semi-empirical model characterized by a sea level projection of 73 cm with RCP4.5 scenario by 2100. Calibrating the model with data to 1990 and then simulating the …
Dec 24, 2012 -
Cold and Warm Extremes in a warmer world
Greenhouse gases is warming the world and this will lead to more frequent heat waves all else being equal. You might naively think that this increase in extreme warm spells will be compensated by an …
Jun 24, 2012 -
Persistence Matters: Significance of paleoclimatic reconstruction statistics
Proxy data forms natural time series used to lengthen instrumental climatic records, and may contain a significant portion of autocorrelation. Increased serial correlation limits the number of …
Dec 24, 2011 -
Sea level projections to AD2500 with the RCP scenarios
Sea level rise over the coming centuries is perhaps the most damaging side of rising temperature (Anthoff et al, 2009). The economic costs and social consequences of coastal flooding and forced …
Dec 24, 2011 -
How would the world look if Greenland melts?
On this page you can see the effect of Global sea level rise on your local coastline. An alternative google mapplet can be found here.
Sep 22, 2011 -
Efficacy of geoengineering to limit 21st century sea-level rise
Geoengineering has been proposed as a feasible way of mitigating anthropogenic climate change, especially increasing global temperatures in the 21st century. The two main geoengineering options are …
Aug 21, 2011