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Table 2 Boosted regression tree (BRT) models to understand the factors that determine whether each acoustic ping was detected (yes/no) on each receiver or transceiver

From: Detection efficiency of acoustic biotelemetry sensors on Wave Gliders

  Model Explained deviance (%) AUC
Detections on the WG backward-facing transceiver of
(A) High transceiver ~ wind.speed + wave.height + sub.pitch + sub.roll + WG.heading + WG.angle + Distance + mooring.noise + mooring.tilt + mooring.temp + sub.dynamics 39.93 0.92
(B) Medium transceiver 49.35 0.94
(C) Low transceiver 53.29 0.96
(D) V13 tag ~ wind.speed + wave.height + sub.pitch + sub.roll + WG.heading + WG.angle + Distance + WG.temp + sub.dynamics 63.99 0.97
Detections on the WG forward-facing transceiver of
(E) High transceiver ~ wind.speed + wave.height + sub.pitch + sub.roll + WG.heading + WG.angle + Distance + mooring.noise + mooring.tilt + mooring.temp + sub.dynamics 28.11 0.89
(F) Medium transceiver 43.01 0.94
(G) Low transceiver 48.33 0.95
(H) V13 tag ~ wind.speed + wave.height + sub.pitch + sub.roll + WG.heading + WG.angle + Distance + WG.temp + sub.dynamics 37.23 0.90
Detections of the very high transceiver (backward facing) on WG by
(I) High transceiver ~ wind.speed + wave.height + sub.pitch + sub.roll + WG.heading + WG.angle + Distance + sub.noise + mooring.tilt + mooring.temp + sub.dynamics 30.03 0.86
(J) Medium transceiver 23.61 0.82
(K) Low transceiver 24.30 0.82
(L) VR2W ~ wind.speed + wave.height + sub.pitch + sub.roll + WG.heading + WG.angle + Distance + sub.noise + WG.temp + sub.dynamics 32.50 0.85
  1. The north mooring had a VR2W receiver (not transceiver) so noise, tilt and temperature data were not available for that mooring line region; therefore, temperature measured on the Wave Glider (WG) transceiver was used instead
  2. wind.speed is the wind speed measured by the WG. wave.height was measured on the CDIP buoy. sub.pitch and sub.roll are the pitch and roll of the WG sub measured by the accelerometer. sub.dynamics is the running 3-minute standard deviation in sub pitch. sub.noise is the noise measured by the WG transceiver. WG.heading is the heading of the WG. WG.angle is the angle between the WG and the respective mooring line. Distance is the distance between the WG and the respective mooring line. mooring.noise, mooring.tilt and mooring.temp are the noise, tilt and temperature, respectively, measured by the mooring line transceivers