HLA North

Both the VLA and TLA's data were recorded aboard the R/P FLIP (FLIP's Position: 32d40.254' N, 117d21.635' W). The two HLAs' data were recorded at an onshore recording station.

HLA North
Position 32d39.24' N, 117d21.72' W
Aperture 240 m
Number of Elements, Total 32
Number of Elements, Processed 27
Array Sampling Rate 3276.8 Hz
Sensor Calibration 78.67dB
Line of Bearing, re clockwise North* 34.5 deg
Water Depth 213 m

*Line of Bearing is calculated from Element #1 to the last element. For the TLA, Element #1 is the deepest and furthest from FLIP. For the HLA North and HLA South arrays, Element #1 is the southernmost element.

Element Positions

Note: The array element positions below have been corrected. If you downloaded or copied the array element positions below prior to 29 April 2003, please download them again or make the necessary corrections.

The HLA North array is a 240 m aperture horizontal array deployed on the seafloor. Line of bearing from the first element to the last element is 34.5 deg clockwise from North. There is a slight bow (~13 m) in the array.

The y/North and x/East element positions below are measured relative to Element #1. To download a tab-delimited, ASCII version of the positions in the table below, click here for the file "positions_hlanorth.txt" (4 KB).

Element
Number
North (m)
East (m)
Depth (m)
1
0.
0.
213.000
2
3.32620
0.95127
213.000
3
6.87230
2.23570
213.000
4
10.7840
3.78330
213.000
5
14.9540
5.67850
213.000
7
24.0080
10.3000
213.000
8
29.1080
13.1740
213.000
9
41.6130
19.7660
213.000
10
49.1650
23.3790
213.000
11
57.4520
27.1940
213.000
12
66.5250
31.2580
213.000
13
76.1340
36.1510
213.000
14
86.3370
41.9980
213.000
15
95.4210
47.2470
213.000
17
129.960
72.7320
213.000
18
132.540
74.9070
213.000
19
135.350
77.2850
213.000
21
141.670
82.7720
213.000
22
145.440
86.0660
213.000
23
149.660
89.6700
213.000
24
154.220
93.8230
213.000
26
164.960
103.850
213.000
27
170.000
108.040
213.000
28
175.210
113.260
213.000
29
180.150
118.160
213.000
30
185.790
123.900
213.000
32
198.240
136.250
213.000

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