Windows Software Reference (Single Chamber Mode)
8-15
Continuous Measurement
The optional 8100-405 CO
2
Mapping Kit can be used without a soil chamber in
continuous measurement mode to map CO
2
concentrations across any transect of
interest. In continuous mode, a single measurement of up to 24 hours can be made.
A user-provided intake tube is required; tubing and fittings are provided in the
spare parts kit to aid in construction of the intake tube. Considerations and
guidelines for sampling height, intake tube construction, and concentration
mapping can be found in Application Note #135, entitled “Mapping CO
2
Concentrations and Fluxes with the LI-8100A”, included with the 8100-405 kit, or
in electronic format at www.licor.com/env/support
.
Data collected with the LI-8100A in continuous mode are formatted differently
than those collected with a soil chamber. The data lack headers and footers
included in the standard .81x file format, and are formatted as comma-delimited
text (.csv file format). Much of functionality of the soil flux measurement protocols
is disabled (e.g. observation length, dead band, etc.) in continuous mode, as these
features have no application for continuous measurements.
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