Geoscience Reference
In-Depth Information
2 Experimental Setup
We used a newly developed spectroscopic technique, and applied it for two
ux
measurement methods. In the following the setup is described in some detail. The
analyzer used in this study is a FTIR-spectrometer, being able to measure
CO
2
;
fl
13
CO
2
th et al. (
2012
)]. We
designed an external manifold box, which allowed us to connect the FTIR to a
CH
4
;
N
2
O
;
CO and
d
[for details, see Grif
fl
ux
gradient setup and to 2
flux chambers simultaneously (Fig.
1
). The designed setup
was tested in peatland Himmelmoor (Quickborn, Germany).
fl
2.1 The Flux Gradient Technique
The
fl
flux gradient technique concept is based on the relationship between the gas
fl
flux and the atmospheric concentration gradient (Grif
th and Galle
2000
). Fluxes
can be calculated by:
F
¼
K
d
c
d
z
ð
1
Þ
Fig. 1 Schematic
figure of the used setup, combining two
fl
flux measurement techniques
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