Eddy Covariance Processing Software | Version 4.1
Optimized for LI‑COR EC systems but can process raw data in any format.
Fully configure the processing to your site and/or preference.
Simple, modern interface with tips and guiding messages gets you to corrected fluxes quicker.
EddyPro is available for free download from LI‑COR Biosciences:
Thank you for requesting a copy of EddyPro Software.
You will receive an email with a link to the software. If you do not receive an email within 24 hours please contact LI-COR.
Version 4.1.0 | Released 11/16/2012
Over 2000 downloads in 120 countries.
EddyPro® is a powerful software application for processing eddy covariance data. It computes fluxes of momentum, carbon dioxide, water vapor, methane, and other trace gases with the eddy covariance method. In Express Mode, EddyPro processes data with commonly used default settings, requiring minimal user configuration. In Advanced Mode, it provides state-of-the-art choices for researchers who need control over data processing procedures. EddyPro is optimized to process GHG* eddy covariance data files logged by LI‑COR analyzers.
EddyPro is an open source software application developed, maintained and supported by LI‑COR Biosciences. It originates from ECO2S, the Eddy COvariance COmmunity Software project, which was developed as part of the Infrastructure for Measurement of the European Carbon Cycle (IMECC-EU) research project. We gratefully acknowledge the IMECC consortium, the ECO2S development team, the University of Tuscia (Italy) and scientists around the world who assisted with development and testing of the original version of this software. For more information about the ECO2S project click here.
Why EddyPro?
- Built on the proven IMECC** platform with an easy to learn and simple interface.
- Seamless processing of LI‑COR GHG files and support for multiple file types including ASCII, generic binary, SLT, and TOB1.
- Integrated online help, videos and technical support from LI‑COR.
- Complete set of processing options including frequency response correction, footprint estimation, random error estimation, quality flagging, and many more.
Recent Advancements Include:
- Extensive data processing options (see descriptions below) for any site and setup.
- Integrate data from biological and meteorological (biomet) sensors at your site (ambient air, temperature, relative humidity, global radiation, etc.) into your flux computation.
- Comprehensive spectral assessment using both analytical and in situ methods. Outputs include full and binned spectra, co-spectra, binned ogives and ensemble spectra and co-spectra with model.
* GHG eddy covariance files (with a .ghg extension) are compressed files that can be read directly by EddyPro. They include all the information that is required to compute fluxes, including wind speed measurements, gas concentration/density measurements, site information, and optional biological and meteorological data. Learn more.
** Infrastructure for Measurement of the European Carbon Cycle
EddyPro Webinars
Dec 14, 2011
The Eddy Covariance Method:
EddyPro 3.0 Data Processing Software with Advanced Settings
Gerardo Fratini & Dave Johnson
Watch thisWebinar
We invite you to join us for the conclusion of our 5-part series on the eddy covariance method. In this webinar we demonstrate EddyPro 3.0 eddy covariance data processing software, including:
• What's new in EddyPro 3.0
• Using advanced settings of EddyPro 3.0
• Where is EddyPro Express? How to use Express in EddyPro 3.0
• Abate execution time and speed up data processing
EddyPro 3.0 introduces advanced settings that give you the flexibility to choose how to process your eddy covariance data and select methods that are best for your site and research needs. Join us to learn how EddyPro 3.0 will simplify and standardize eddy covariance around a flexible, and easy-to-use software platform.
May 26, 2011
The Eddy Covariance Method:
EddyPro Data Processing Software
Gerardo Fratini & Israel Begashaw
Watch thisWebinar
This is the third of five educational webinars on the eddy covariance method. Following up on the previous two webinars, we will demonstrate EddyPro Express eddy covariance data processing software. EddyPro Express will quickly take you from raw data files to publishable flux results in a just few steps. The demonstration will include:
• An end-to-end workflow for logging raw data to the LI-7550 and computing flux results with EddyPro Express
• An explanation of EddyPro Express flux computations and corrections
• Processing GHG, ASCII, and TOB1 files with EddyPro Express
• EddyPro results — statistical files and computed fluxes
In this webinar, we will describe how to configure the LI-7550 to log GHG files that include all the raw data and station information required to compute fluxes. Next, we will introduce EddyPro and discuss its origin, creation, and validation. We outline the steps involved in processing ASCII files, TOB1 files, and GHG files using EddyPro Express. Finally, we will describe how EddyPro Express processes data, and describe the output files that EddyPro Express provides.
Data Processing Options in EddyPro 4.0 (Express Mode selections in italics)
- Axis rotation for sonic anemometer tilt correction
- Double rotation
- Triple rotation
- Sector-wise planar fit (Wilczak et al., 2001)
- Sector-wise planar fit with no velocity bias (van Dijk et al., 2004)
- Detrending of raw time series
- Block averaging
- Linear detrending
- Running mean
- Exponential running mean
- Compensation of time lag between sonic anemometer and gas analyzer measurements
- Automatic time lag optimization (optionally as a function of RH for H2O)
- Maximum covariance with default (circular correlation)
- Maximum covariance without default
- Constant
- None (option to not apply compensation)
- Statistical tests for raw time series data (Vickers and Mahrt, 1997)
- Spike count/removal
- Amplitude resolution
- Dropouts
- Absolute limits
- Skewness and kurtosis
- Discontinuities
- Time lags
- Angle of attack
- Steadiness of horizontal wind
- Individually selectable and customizable
- Available outputs
- Full (rich) output with fluxes, quality flags and much more (standard format or available results only)
- Ameriflux format
- GHG Europe format
- Raw data statistics
- Full length spectra and co-spectra
- Binned spectra and co-spectra
- Binned ogives
- Ensemble averaged spectra
- Ensemble averaged cospectra, fitted models and ideal (Kaimal) cospectra
- Details of steady state and turbulence tests
- Raw data time series after each statistical tests/correction
- Averaged biomet data
- Compensation for air density fluctuations
- Webb et al., 1980 (open path) / Ibrom et al., 2007a (closed path)
- Use (or convert to) mixing ratio (Burba et al., 2012)
- Optional off-season upatake correction for LI-7500 (Burba et al., 2008)
- None (option to not apply compensation)
- Correction for frequency response (attenuation)
- Analytic high-pass filtering correction (Moncrieff et al., 2004)
- Low-pass filtering, select and configure:
- Moncrieff et al. (1997)
- Horst (1997)
- Ibrom et al. (2007b)
- Horst and Lenschow (2009)
- Fratini et. al. (2012)
- Quality control tests for fluxes according to Foken et al. (2004)
- Flagging according to Carbo Europe standard (Mauder and Foken, 2004)
- Flagging according to Foken (2003)
- Flagging after Göckede et al. (2004)
- Random uncertainty estimation
- Mann & Lenschow (1994)
- Finkelstein and Sims (2001)
- Flux footprint estimation
- Kljun et al. (2004)
- Kormann and Meixner (2001)
- Hsieh et al. (2000)
- Other options applied in both Express and/or Advanced Mode include:
- Sonic temperature correction for humidity following van Dijk et al. (2004)
- Spectroscopic correction for LI-7700 following McDermitt et al. (2011)
- Angle of attack corrections for Gill anemometers following Nakai et al. (2006)
- Angle of attack corrections for Gill anemometers following Nakai and Shimoyama (2012)
- Inclusion of biomet data for improved flux computation/correction
References:
Burba et al. (2008) – Global Change Biology, 14:1854–1876.
Burba et al. (2012) – Global Change Biology, 18:385-399.
Finkelstein and Sims (2001) – Journal of Geophysical Research, 106:3,503 – 3,509.
Foken (2003) – Angewandte Meteorologie, Mikrometeorologische Methoden, 289 pp.
Foken et al. (2004) –Handbook of micrometeorology: A guide for surface flux measurements, 81-108.
Fratini et al. (2012) – Agricultural and Forest Meteorology, 165: 53-63
Göckede et al. (2004) – Agricultural and Forest Meteorology, 127: 175-188.
Hsieh et al. (2000) – Advances in Water Resources, 23: 765-772.
Horst (1997) – Boundary Layer Meteorology, 82: 219-233.
Horst and Lenschow (2009) – Boundary Layer Meteorology, 130: 275-300.
Ibrom et al. (2007a) – Tellus Series B-Chemical and Physical Meteorology, 59:937-946.
Ibrom et al. (2007b) – Agricultural and Forest Meteorology, 147: 140-156.
Kljun et al. (2004) – Boundary Layer Meteorology, 112: 503-523.
Kormann and Meixner (2001) – Boundary Layer Meteoroogy, 99:207–224.
Mann and Lenschow (1994) – Journal of Geophysical Research, 99:14,519–14,526.
Mauder and Foken (2004) - Documentation and Instruction Manual of the Eddy Covariance Software Package TK2, Arbeitsergebnisse Nr. 26.
McDermitt et al. (2011) – Applied Physics B: Laser and Optics, 102: 391-405.
Moncrieff et al. (2004) – Handbook of micrometeorology, 7-31.
Moncrieff et al. (1997) – Journal of Hydrology, 188-189: 589-611.
Nakai et al. (2006) – Agricultural and Forest Meteorology, 136: 19-30.
Nakai and Shimoyama (2012) – Agricultural and Forest Meteorology, 162-163: 14-26
Van Dijk et al. (2004) – Meteorology and Air Quality Group, Wageningen, the Netherlands, 99 pp.
Vickers and Mahrt (1997) – Journal of Atmospheric and Oceanic Technology, 14: 512-526.
Webb et al. (1980) – Quarterly Journal of the Royal Meteorological Society, 106: 85-100.
Wilczak et al. (2001) - Boundary Layer Meteorology, 99: 127-150.