Table 2

Univariate analysis of wind variables in addition to the baseline model

Day effectsday 0day 1day 2day 3day 4day 5day 6day 7day 8
Predominantly N days
 est0.5102-150 0.2030.0210.1410.058−0.196−0.096−0.515−0.038
 (se)(0.210)(0.232)(0.245)(0.226)(0.245)(0.254)(0.256)(0.283)(0.233)
Predominantly NE days
 est0.0860.068−0.150−0.0430.095−0.157−0.020−0.225−0.184
 (se)(0.151)(0.148)(0.155)(0.146)(0.147)(0.148)(0.150)(0.147)(0.146)
Predominantly E days
 est−0.143−0.0140.1660.011−0.005−0.1900.009−0.3212-150 −0.270
 (se)(0.152)(0.142)(0.136)(0.137)(0.144)(0.141)(0.142)(0.143)(0.142)
Predominantly S days
 est−0.167−0.4942-150 −0.182−0.5702-150 0.139−0.119−0.006−0.235−0.4702-150
 (se)(0.209)(0.232)(0.206)(0.233)(0.188)(0.192)(0.194)(0.195)(0.214)
Predominantly SW days
 est−0.026−0.098−0.093−0.195−0.039−0.2110.017−0.227−0.120
 (se)(0.155)(0.148)(0.144)(0.145)(0.145)(0.143)(0.141)(0.139)(0.136)
Predominantly W days
 est−0.2470.066−0.079−0.206−0.043−0.203−0.109−0.284−0.4982-150
 (se)(0.203)(0.179)(0.185)(0.189)(0.186)(0.185)(0.187)(0.185)(0.204)
Predominantly NW days
 est−0.016−0.1800.007−0.4340.248−0.044−0.1870.012−0.008
 (se)(0.206)(0.215)(0.197)(0.226)(0.183)(0.191)(0.211)(0.181)(0.184)
Mixed wind direction days
 est−0.0240.105−0.2970.013−0.374−0.164−0.148−0.245−0.246
 (se)(0.178)(0.168)(0.190)(0.166)(0.199)(0.173)(0.180)(0.173)(0.175)
Predominantly windless days (reference category)
 est000000000
Average hourly wind speed (knots)
 est0.012−0.013−0.022−0.0262-150 −0.013−0.015−0.011−0.014−0.005
 (se)(0.011)(0.012)(0.012)(0.012)(0.012)(0.012)(0.012)(0.012)(0.011)
Maximum wind speed (knots)
 est0.010−0.007−0.012−0.0162-150 0.000−0.010−0.006−0.012−0.002
 (se)(0.007)(0.007)(0.007)(0.008)(0.007)(0.007)(0.007)(0.007)(0.007)
Standard deviation of hourly wind speed (knots)
 est0.032−0.023−0.045−0.0360.011−0.036−0.017−0.033−0.013
 (se)(0.027)(0.027)(0.028)(0.027)(0.027)(0.028)(0.027)(0.027)(0.027)
Average hourly change in wind direction (degrees)
 est−0.001−0.002−0.001−0.005−0.001−0.001−0.001−0.008−0.002
 (se)(0.006)(0.005)(0.005)(0.005)(0.005)(0.005)(0.005)(0.005)(0.005)
Maximum hourly change in wind direction (degrees)
 est0.001−0.000−0.000−0.001−0.001−0.0000.001−0.0010.000
 (se)(0.001)(0.001)(0.001)(0.001)(0.001)(0.001)(0.001)(0.001)(0.001)
Between day effects day  0–1
day  1–2
day  2–3
day  3–4
day  4–5
day  5–6
day  6–7
day  7–8
Absolute difference in predominance of windlessness
 est0.004−0.1320.0610.0370.0440.0610.1660.2412-150
 (se)(0.104)(0.106)(0.100)(0.101)(0.101)(0.100)(0.098)(0.096)
Absolute difference in average daily wind speed (knots)
 est−0.030−0.031−0.029−0.023−0.018−0.016−0.0060.024
 (se)(0.017)(0.017)(0.017)(0.017)(0.016)(0.016)(0.016)(0.015)
Absolute difference in standard deviation of daily wind speed (knots)
 est−0.015−0.0130.0400.000−0.016−0.0210.018−0.000
 (se)(0.034)(0.034)(0.033)(0.034)(0.034)(0.034)(0.033)(0.034)
Absolute difference in average daily change in wind direction (degrees)
 est0.0080.003−0.003−0.007−0.0090.0060.003−0.002
 (se)(0.007)(0.007)(0.007)(0.007)(0.007)(0.007)(0.007)(0.007)
  • 2-150 Denotes 0.01<p⩽0.05.