Additionally a correlation between acoustic activity and other environmental factors such as wind speed (p <0.001, rp = 0.123, n = 2088) and cloud cover (p <0.001, rp = 0.428, n = 87) was found.
Þar að auki reyndist fylgni á milli hljóðamyndunar og annarra umhverfisþátta, svo sem vindhraða (p <0,001, rp = 0,123, n = 2088) og skýjaþekju (p <0,001, rp = 0,428, n = 87).