Checking and validation of BATOS data on board FASTEX ships: R/V Le SUROIT: comparison of wind measurements

direction speed

Checking and validation of BATOS data on board FASTEX ships

The following table shows differences between BATOS wind direction (Ddbatos) and 'operator' wind direction (Ddobs) greater than 30° (absolute value). Ddmast is the wind direction measurement from the mast sensor.

date	hour	Ddbatos	Ddobs	Ddmast	Ddbatos-Ddobs
9/1	9:00	210	250	217	-40
10/1	12:00	320	270	304	50
10/1	18:00	220	170	162	50
11/1	9:00	10	320	1	-310
14/1	3:00	330	290	351	40
14/1	6:00	10	250	351	-240
14/1	12:00	350	30	349	320
14/1	15:00	350	310	324	40
15/1	0:00	10	270	349	-260
18/1	6:00	230	190	214	40
22/1	3:00	160	260	184	-100
22/1	12:00	170	300	164	-130
26/1	15:00	30	280	21	-250
29/1	3:00	20	350	20	-330
30/1	12:00	140	80	142	60
11/2	6:00	320	280	296	40
12/2	15:00	290	250	262	40
12/2	21:00	30	360	22	-330
13/2	12:00	20	350	10	-330
13/2	21:00	360	270	4	90
14/2	3:00	140	100	149	40
17/2	12:00	290	250		40
21/2	18:00	320	280		40
23/2	9:00	330	280		50
28/2	0:00	220	180		40
28/2	6:00	230	190		40

The following table shows differences between BATOS wind Speed (Ffbatos), 'operator' wind speed (Ffobs) greater than 4m/s (absolute value). Ffmast is the wind speed measurement from the mast sensor.

date	hour	Ffbatos	Ffobs	Ffmast	Ffbatos-Ffobs
10/1	12:00	3.6	8.7	4.6	-5.1
13/1	6:00	19.5	23.6	23	-4.1
13/1	9:00	17.5	21.6	17.1	-4.1
19/1	9:00	10.3	15.4	14.2	-5.1
22/1	12:00	13.4	7.7	14.1	5.7
22/1	21:00	19.5	26.2	20.1	-6.7
23/1	9:00	12.9	18	14.7	-5.1
29/1	6:00	11.8	6.1	12.7	5.7
5/2	21:00	13.4	20		-6.6
6/2	6:00	12.3	19.5		-7.2
6/2	15:00	4.1	10.2		-6.1
8/2	6:00	15.9	20.5	17.1	-4.6
12/2	9:00	12.3	16.4	14.4	-4.1
14/2	6:00	11.8	16.9	11.7	-5.1
14/2	12:00	15.4	22.1	17.6	-6.7
15/2	3:00	22.1	26.7	22.8	-4.6