A modern eddy-covariance software based on EC-PACK
The eddy covariance (also called eddy correlation or eddy flux) method is a key technique in meteorology and other atmosphere-related sciences and to measure vertical turbulent fluxes of heat, energy, and matter in the atmospheric boundary layer. It is based on analyzing statistical properties of high-frequency measuments of wind speed and scalar atmospheric properties (e.g. Temperature). These calculations are done by EC software like EC-Pet.
| EC-PeT’s eddy-covariance calculation is a fork of the well-known EC-PACK | |
| EC-PACK was originally developed at the Dutch weather service (KNMI) and the universities of Utrecht and Wageningen and is one of the most well established eddy-covariance softwares. It follows the approach of Lenschow et al. (1994) to assign an error value to each flux value calculated. | |
| quality control and assessment (QC/QA) scheme developed for TERENO | |
| The process QC/QA scheme incorporates the calculation of error flags after Vickers & Mahrt (1997), quality classes after Foken & Wichura (1996), a few other QC tests, assessment of the original EC-PACK errors (van Dijk et al.,2004), calculation errors after Finkelstein & Sims (2001), as well as target area matching algorithm, currently using the footprint model (Korman & Meixner, 2001). | |
| the name is a Latin backonym, as a references to the Roman history of Trier | |
| “elaboratio concursuum perturbationum Treverensis” is latin and roughly translates to elaboration of agreement in turbulences |
| EC-PeT code has been completely rewritten in Python, reducing it from 18.000 lines of FORTRAN to 9.000 lines of PYTHON. | |
| The code is entirely parallelized to take advantage of multiple processors. | |
| The software can be run either via command line interface (CLI) or completely headless, for fully automated use. | |
| For the ease of use and novice users the program offers as graphic user interface (GUI) allowing to control the most widely used funtions and setings: | |
| Some ease-of-use features are: automatic search for supported input files visual column-to-variable assignment automatic detection of time covered and data rate visual choice of instruments |
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