Thursday, March 12, 2009 8:14:50 PM
The last few days my inbox has been filled to the brim with news about the Climate Change Congress in Copenhagen 10-12 March 2009. I think I can summarise the findings in one sentence:About 2500 climate scientists gathered and their news was not good.
The conclusions will be published as a full report in June 2009, but six preliminary key messages are summarised in the following news release from the University of Copenhagen.
Maybe I should add the one positive note I have seen from the congress - after all I am normally speaking of the optimistic type.
With adequate financial and political support, renewable energy technologies like wind and solar power could supply 40 percent of the world's electricity by 2050. The catch is the necessary financial investment seen the current financial crisis. (Some optimists see this financial crisis as an opportunity
Thursday, March 12, 2009 11:28:34 AM
No, this is not about Bobby Jindal and volcano monitoring in the US!
Continuous measuring of emissions of sulphur dioxide (SO2) may be an important supplementary tool in predicting volcanic eruptions. Measurements of volcanic sulphur dioxide fluxes are in fact important indicators of volcanic activity. When magma is rising to the surface gas emissions are usually increased. In a new Swedish project 17 different volcanoes around the world are monitored for gas emissions and information on the sulphur dioxide level is automatically transmitted every five minutes.
Mattias Johansson at the Department of Radio and Space Science, Chalmers University
, Gothenburg, Sweden is using a mini-DOAS system for the (remote) measurements of volcanic gas emissions. (DOAS = Differential Optical Absorption Spectroscopy).Reference
Mattias Johansson (2009).Application of Passive DOAS for Studies of Megacity Air Pollution and Volcanic Gas Emissions.
Chalmers University of Technology.
Other relevant reference:
Galle B., Oppenheimer C., Geyer A., McGonigle A. and Edmonds M. (2002)A miniaturised ultraviolet spectrometer for remote sensing of SO2 ﬂuxes: a new tool for volcano surveillance.
Journal of Volcanology and Geothermal Research, Volume 119, Issues 1-4, 1 January 2003, Pages 241-254
PS of 13 March 2009:
See also the post New sulphur dioxide monitoring methods - improving volcano and climate monitoring
at The Volcanism Blog.