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The Office of Naval Research is sponsoring a deep water propagation experiment in the Philippine Sea in years 2010 and 2011, with an associated "Pilot Experiment" in 2009. Some discussion and background on this experiment can be found at Dushaw's Deep Water Propagation Wiki.
Various bits are excerpted from other places to here for reference.
The tomography/thermometry array proposed by Scripps is shown below. This version was sent to me from P. Worcester in January 2008 shortly following the Tiger Team meeting in La Jolla.
Ambient noise predictions for the six sites (T1 - T5 are the "points of the pentagram, and T6 is the center) were computed using the DANM program, version 2.0 (beta.) The following parameters were used:
| parameter | value |
| propagation code | ASTRAL 5.1 |
| Wind speed database | SMGC 2.0, March |
| Environmental database | GDEM-V 3.0, March |
| Bathymetry database | DBDBV 4.3 |
| Shipping density database | HITS 4.0 |
| frequencies | 25 to 500 Hz |
| depths | 500m, 1000m, etc to the local bottom |
Computations for each site are gathered in per-site netCDF files linked below.
T1.
T2.
T3.
T4.
T5.
T6.