Found any rubber ducks recently?
If you happen to be fishing or hunting in the Baffin Bay area (relatively unlikely in itself) and you come across a rubber duck (!) – don’t just mutter to yourself about pollution reaching remote areas. You could help some of the world’s leading scientists find out more about melting glaciers and climate change.
Rubber ducks aren’t something you’d usually associate with NASA, but then again, you always have to expect the unexpected here.
The grand total of 90 ducks were put into the ice of a Greenland glacier in August by a NASA scientist Alberto Behar, to help find out why glaciers head towards the sea faster in summer. He also used a sophisticated probe,with measuring equipment and a gps transmitter. But it’s hardly surprising that it’s the ducks that make the headlines.
Unfortunately, none of them have been reported so far.
You can read the whole story from Reuters here
Scientists know quite a lot about this particular glacier, the Jakobshavn glacier, because it accounts for a fair percentage of the ice that comes off Greenland. But even the experts don’t know everything, for instance how exactly the water flows off and how this influences the movement of the glaciers and their speed.
I’m using the theme of “the lengths scientists have to go…” as an excuse to put up this picture from Svalbard.
It shows Bob and Sebastian – two scientists I interviewed there – rushing to salvage “the drone” – a camera + gps on a mini hang-glider, being used to photograph snow melt and water flow.
We’ve been hearing a lot about the Arctic sea ice melting recently, but of course the thing about Greenland is that it has so much land-based ice. So when it melts – unlike the sea ice – it increases the sea level.
Scientists from the eastern German Technical University of Dresden have just published a study confirming that the Baltic Sea leavel is rising faster than expected on account of global warming. It seems it has risen 15 cm in the last hundred years. A more worrying result is that over the past 20 years, the annual level rise has doubled, to 3 mm every 12 months – in accordance with the global trend. The scientists attribute this to melting glaciers and thermal expansion of the water.
Article on Dresden Uni webpage (German only, as far as I can see)
Readers might also be interested in the RealClimate blog, which is written by climate scientists. There is currently a debate going on there about sea level rise.
Real Climate Science Blog
DateSeptember 22, 2008 | 9:43 am