“…Numerical and experimental studies show the extent and magnitude of the induction zone can vary significantly depending on the size and layout of the wind plant, atmospheric conditions, wind turbine characteristics, and wind speed Meyers, 2017, 2018;Bleeg et al, 2018;Wu and Porté-Agel, 2017;Segalini and Dahlberg, 2019;Schneemann et al, 2021). Whereas some studies show slowdowns up to ∼30D upstream (Wu and Porté-Agel, 2017;Segalini and Dahlberg, 2019;Schneemann et al, 2021;Bleeg et al, 2018), others show slowdowns that extend up to ∼80D upstream of first row of the wind plant (Allaerts and Meyers, 2018;Wu and Porté-Agel, 2017). The spread in the wind speed deficit observed just upstream of the plant is even larger.…”