Starting date: 1-5-2008
Instrumentation and calibration: Nitrous oxide is measured by using a customized GC-ECD (Agilent 6890N); separation is performed on a double column system (precolumn/backflush and analytical column, both Hayesep Q), isothermically. Length of run is 15 min long. Each ambient air sample is bracketed with calibration runs. The standard are based on NOAA2006 scale.
Project affiliation (s) Present: AGAGE
Related research programmes
Why is this research important? Nitrous oxide (N2O) is an important greenhouse gas. In troposphere, N2O absorbs terrestrial thermal radiation and thus contributes to greenhouse warming of the atmosphere. On a per-molecule basis, N2O is about 200 times more powerful than carbon dioxide: it has been calculated that an increase of 0.2 to 0.3 % in N2O atmospheric concentration would contribute about 5% to the supposed greenhouse warming. N2O is also involved in the depletion of the ozone layer in stratosphere which protects the biosphere from the harmful effects solar UV radiation.
Organization (s): Urbino University Dipartimento di Scienza di Base e Fondamenti piazza Rinascimento 6, I-61029, Urbino ISAC-CNR Via Gobetti 101, I-40129, Bologna www.isac.cnr.it
Contact persons: Prof. Michela Maione e-mail: michela.maione [at] uniurb.it phone: +39 0722 303316
Dr. Jgor Arduini e-mail: jgor.arduini [at] uniurb.it phone: +39 0722 303316
Dr. Paolo Bonasoni e-mail: p.bonasoni [at] isac.cnr.it, phone: +39 051 6399590
Where can I find the data? by direct request to: michela.maione [at] uniurb.it, jgor.arduini [at] uniurb.it