Atmospheric O2, CO2 and δ13C measurements from aircraft sampling over Griffin Forest, Perthshire, UK

Sturm, Patrick; Leuenberger, Markus; Moncrieff, John; Ramonet, Michel (2005). Atmospheric O2, CO2 and δ13C measurements from aircraft sampling over Griffin Forest, Perthshire, UK. Rapid communications in mass spectrometry, 19(17), pp. 2399-2406. Wiley 10.1002/rcm.2071

Text sturm05rcms.pdf - Published Version Restricted to registered users only Available under License Publisher holds Copyright. Download (775kB)

Regular vertical aircraft sampling has been performed in the lower troposphere above Griffin Forest, near Aberfeldy, Perthshire, UK (56°37′N, 3°47′W), between February 2003 and May 2004, for analysis of O2/N2, CO2 and δ13C of CO2. We sampled flasks between 800 and 3100 m above sea level. The peak-to-peak amplitude of the seasonal cycle of O2/N2 decreases from 171 per meg at 800 m to 113 per meg at 3100 m. Furthermore, the seasonal cycle is shifted from low to high altitudes with a lag of about 1 month. The same features are observed for CO2 with a decrease in the peak-to-peak amplitude of the seasonal cycle from 17.6 ppm at 800 m to 11.4 ppm at 3100 m. The vertical profiles show decreasing O2/N2 ratios in summer and increasing O2/N2 ratios in wintertime with increasing sampling height, due to surface exchange of oxygen with the land biosphere and the ocean. The O2:CO2 exchange ratios of the vertical profiles vary between −1.5 and −2.4 mol O2/mol CO2.

Interest & Impact

Downloads

1 since deposited on 09 Sep 2021
0 in the past 12 months

Citations

5 Citations in Web of Science ®
6 Citations in Scopus

Search

in Google Scholar™

Services

Actions (login required)

Edit item

Actions (login required)

Edit item