Table 1 Results for the eight deployments during the field trials at Crosby.

Deployment			Bayonet GPE volumes (m³ m⁻¹) +/− uncertainty.					WireWall volumes (m³ m⁻¹) on different sensors.
num.	date 2018/19	HW, GMT	−2 s.d.	−1 s.d.	total	+1 s.d.	+2 s.d.	sensor 2 crest	“sensible” crest	sensor 3, 35 cm	sensor 4, 70 cm	sensor 5, 105 cm	sensor 6, 140 cm
1	Oct 24	10:42			0.00			0.0	0.0	0.0	0.0	0.0	0.0
2	Oct 25	11:15	0.00	0.00	0.01	0.10	1.0	0.0	0.0	0.0	0.0	0.0	0.0
3	Oct 26	11:49	0.00	0.01	0.10	0.75	5.8	4.2	4.0	1.8	-	0.1	-
4	Nov 08	11:15			0.00			0.0	0.0	0.0	0.0	0.0	0.0
5	Jan 22	11:48	0.73	2.42	8.12	27.60	96.1	62.0	55.2	34.0 (16.0)	26.5	12.0	7.5
6	Jan 23	12:35	0.16	0.66	2.80	11.96	51.6	0.0	0.0	0.0	0.0	0.0	0.0
7	Jan 25	14:09	1.46	4.47	12.94	37.77	111.8	70.0 (8.0)	54.5 (12.9)	26.2	17.0 (3.5)	13.4 (2.5)	5.2 (6.0)
8	Mar 22	12:00	1.93	5.91	18.11	55.64	172.0	21.3 (2.0)	14.0 (1.7)	7.5 (0.5)	2.5 (0.4)	0.8 (0.2)	0.2 (0.2)

The deployment number (num.), dates and the time of high water (HW, GMT) are given for each deployment, along with predicted (Bayonet GPE) and measured (WireWall) total overtopping volumes (m³ m⁻¹). Bold font indicates the mean, non-zero values for ease of comparison. For Bayonet GPE the total volume −2, −1, +1 and +2 s.d. values are given as well as the mean estimate. For WireWall the total volumes are given at various distances inland, i.e. from the different sensors located either at the crest (sensor 2), at the railing (sensor 3, 35 cm from the crest) or further inland (sensors 4, 5 and 6, located 70, 105 and 140 cm from the crest). An alternative, “sensible” volume for sensor 2 is also given, i.e. only those events that were also detected on sensor 3. Where more than one WireWall unit was working, the + /− range of values is shown by the numbers in brackets. Notes: Deployment 3 - only WireWall unit C was working, and sensors 4 and 6 were damaged; Deployment 5 - on the 22nd January only WireWall unit A was working, and the value from sensor 3 may be very uncertain; Deployment 7 - all sensors on the unit A worked, and most sensors on both the other two units (but not 3 and 5 on unit B, and not 3 and 6 on unit C). Deployment 8 - all sensors on both units A and C worked, but unit B failed.

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