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UW Formic Acid Mixing Ratio and Flux Measurements



Quality-controlled formic acid (HCOOH) fluxes 30-minute averaging periods at the 30-m inlet height at the WLEF very tall tower for the Chequamegon Heterogeneous Ecosystem Energy-balance Study Enabled by a High-density Extensive Array of Detectors (CHEESEHEAD) project are contained in this dataset.  HCOOH mixing ratio measurements were made using a chemical ionization time of flight mass spectrometer (CI-ToFMS). All flux values are in ppbv cm/s. Time is in fractional day of year Central Daylight Time. For all measurements assume a 20% uncertainty, as that is the upper limit in flux uncertainty calculations. See the readme documentation for a decription of the instrument, data collection, quality control and detection method. 

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Additional information

Data Quality final
  • 1.0 (2020-12-08)
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Related projects
Frequency 30 minute
Language English
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2019-07-02 20:07:52
End datetime 2019-07-15 23:36:31

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 45.946, Minimum (South) Latitude: 45.946
Minimum (West) Longitude: -90.272, Maximum (East) Longitude: -90.272

Primary point of contact information

EOL Data Support <>

Additional contact information


Bertram, T., Vermeuel, M. 2020. UW Formic Acid Mixing Ratio and Flux Measurements. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 13 Jun 2024.

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