EasyFlux PC Eddy-Covariance Post-Processing PC Software
Fully Corrected Fluxes
Computer program that computes fully corrected fluxes of CO2, latent heat, and sensible heat
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Overview

EasyFlux® PC is a free computer program that processes high frequency time series data, collected using a Campbell Scientific eddy-covariance flux system, into fluxes following community accepted practices. Fully corrected fluxes of CO2, latent heat (H2O), sensible heat, and momentum are available in generic, AmeriFlux, and GHG-Europe ASCII formats.

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Detailed Description

Provides fully corrected outputs of CO2 flux, latent heat flux, and sensible heat flux at a user-defined interval (e.g., 30 minutes). Also provides many other variables of atmospheric properties, instrument diagnostics, and intermediate corrections.

Default processing:

  • Despike and filter data using sonic anemometer and gas analyzer diagnostic codes, signal strengths, and measurements output range threshold.
  • Apply coordinate rotation with an option to use the double rotation method (Tanner and Thurtell, 1969) or planar fit method (Wilczak et al., 2001).
  • Lag CO2 and H2O measurement against sonic wind measurement for maximization of CO2 and H2O flux (Horst and Lenschow, 2009; Foken et al., 2012).
  • Apply low frequency correction following Moncrieff et al., 2004.
  • Apply high frequency corrections following Moncrieff et al., 1997; Massman, 2000, 20001; or Horst, 1997.
  • Correct sonic temperature for the effect of humidity following van Dijk et al., 2004.
  • Apply correction for air density fluctuation using Webb et al., 1980.
  • QA/QC data quality checks following Foken, 2003.

Compatibility

Required Equipment

  • CR6, CR3000, or CR1000 datalogger
  • IRGASON or EC150 with CSAT3A

Downloads

EasyFlux PC v.1.0 (55.8 MB) 04-10-2017

EasyFlux® PC is a computer program that processes high frequency time series data, collected using a Campbell Scientific eddy-covariance flux system, into fluxes following community accepted practices.