Assessing the influence of ground cover, buildings and meteorological conditions on annual aircraft noise exposure: sensitivity study with the simulation tool sonAIR

Open Access

Table 5.

Statistical summary comparing the calculated sonAIR versions for GVA2017 and the best-practice model across all sound exposure levels (low, moderate, high) and time periods (06–22 h, 22–23 h, 23–05 h). Mean (μ), standard deviation (σ), minimum (min), and maximum (max) differences are presented.

		sonAIR with ground cover −			sonAIR with grassland −			sonAIR with buildings −			sonAIR METEO −
		best-practice model			best-practice model			best-practice model			best-practice model
		Low	Moderate	High	Low	Moderate	High	Low	Moderate	High	Low	Moderate	High
06–22 h	μ	0.0	−0.4	−0.6	0.1	−0.1	−0.6	0.0	−0.9	−0.7	−0.1	−0.8	−1.7
		σ	0.9	1.2	0.4	0.7	0.8	0.5	0.9	1.9	0.4	0.9	1.1	0.4
		min	−13.9	−10.0	−3.2	−12.0	−3.8	−3.2	−13.7	−21.3	−3.2	−14.0	−10.5	−3.9
		max	5.2	2.9	1.7	4.9	4.9	1.6	5.2	2.9	1.7	4.8	2.5	0.2
	22–23 h	μ	0.9	0.0	−0.3	1.1	0.2	0.1	0.9	−0.2	−0.9	0.8	−0.1	−0.6
		σ	1.1	1.1	1.4	0.9	0.8	0.8	1.1	1.5	2.8	1.0	1.1	1.4
		min	−11.9	−12.0	−9.8	−10.7	−5.5	−4.4	−11.8	−20.9	−20.5	−11.9	−12.6	−10.4
		max	6.2	4.6	1.9	6.1	6.0	2.3	6.2	4.6	1.9	5.8	3.4	1.1
23–05 h		μ	1.4	0.1	−1.1	1.6	0.4	0.6	1.4	−0.2	−1.1	1.4	−0.1	−1.6
		σ	1.5	1.4	1.2	0.8	2.0	0.9	1.0	1.8	1.1	1.5	1.4	1.2
		min	−12.6	−12.6	−4.3	−10.9	−6.3	−4.0	−12.6	−21.0	−4.3	−12.6	−13.3	−4.4
		max	6.0	4.3	0.9	6.1	6.2	0.9	6.0	4.3	0.9	5.6	3.4	0.9

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