Energy Dissipation Rate (EDR) calculation algorithm for tethered balloon-borne turbulence observations during MOSAiC Legs 1, 2, and 3
- 1. Leibniz Institute for Tropospheric Research, Leipzig, Germany
Description
The Energy Dissipation Rate (EDR) calculation algorithm is an algorithm to derive local energy dissipation rates from high-resolution wind velocity records. The algorithm is based on inertial subrange scaling and it uses the second-order structure function. First, the algorithm calculates the structure function of the given sub-record and estimates the scaling coefficient for different widths of the inertial subrange. As a next step, the inertial subrange with the scaling coefficient closest to 2/3 is chosen to derive the local energy dissipation rate for the sub-record. If the scaling coefficient is not within the accepted range, no EDR is derived for the respective sample. The algorithm is written in python and needs input data sets. Various parameters such as the permissible range of the scaling coefficient can be adjusted.
The EDR calculation algorithm was developed for tethered balloon-borne turbulence measurements of a hot-wire anemometer package operated during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition (https://doi.org/10.1594/PANGAEA.932007).
Notes
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