Nx2d Canyon Run Acoustic Forecasts for 8 September 1500Z and 2100Z, Issued 7 September 2009

The area shown in each picture is a 10 km wide and 15 km long box. The OMAS starting point is the center of upper boundary (SHRU location), and heading down 150 degree due north to the south-east. The blue dash line is suppose to be the OMAS track. Source location is indicated by a hexagram marker. There are 6 different OMAS source locations for each TL map; about 3 km each in 15 km distance. At each source location, N by 2D is set up with a 900 Hz source at 100 m depth propagating to 15 km distance in 180 directions (every 2 degree bearing angles in whole circle), and then project to this horizontal map and certain depth. Two depths averaged over 27 ±10m and 61 ±10 m are shown; also two different style of TL map are shown, one is with cylindrical spreading loss, one is without.

1800ZSource at 50m
Source at 100m
2100ZSource at 50m
Source at 100m

Forecast for 8 Sep. 15Z

Source at 50m
Location 1 Location 2 Location 3 Location 4 Location 5 Location 6
Receiver at 27m - Spreading Loss
Receiver at 27m - No Spreading Loss
Receiver at 61m - Spreading Loss
Receiver at 61m - No Spreading Loss
Source at 100m
Location 1 Location 2 Location 3 Location 4 Location 5 Location 6
Receiver at 27m - Spreading Loss
Receiver at 27m - No Spreading Loss
Receiver at 61m - Spreading Loss
Receiver at 61m - No Spreading Loss

Forecast for 8 Sep. 21Z

Source at 50m
Location 1 Location 2 Location 3 Location 4 Location 5 Location 6
Receiver at 27m - Spreading Loss
Receiver at 27m - No Spreading Loss
Receiver at 61m - Spreading Loss
Receiver at 61m - No Spreading Loss
Source at 100m
Location 1 Location 2 Location 3 Location 4 Location 5 Location 6
Receiver at 27m - Spreading Loss
Receiver at 27m - No Spreading Loss
Receiver at 61m - Spreading Loss
Receiver at 61m - No Spreading Loss

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