call to uwapm.models() gives error - continues to be an issue under Windows/10 x64 with Anaconda Python 3.6.7 and arlpy 1.6 about arlpy HOT 3 CLOSED

@U-S-S thanks for the detailed report. Few questions and comments:

1. What version of Bellhop are you using?
2. From the files you attached, the problem does not seem to be in uwapm.models() from the files you included, but with a uwapm.compute_eigenrays(). Or are you reporting two different errors?
3. The problem with your setup seems to be the ssp. I was able to reproduce your error and fix it. Change the bottom-most ssp entry to 405 (see below) and it seems to work fine. Bellhop doesn't seem to like you giving sound speed below the lowest point in your bathymetry.

ssp = [
  [0,1540],
  [90, 1530],
  [200, 1532],
  [300, 1533],
  [405, 1535]
]

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@mchitre

Many thanks for setting me on the right course - got it working!
In answer to your questions:

1. am using the WIN 10 x64 Bellhop binary from http://oalib.hlsresearch.com/AcousticsToolbox/ which I believe is version 2018_7
2. Sorry for the confusion only the one issue, which you are correct in indicating likely is a matter related to I/O to uwapm.models()
3. Your correction worked by setting the last SSP profile depth = depth of the lowest depth in the bathymetry range. I was mislead to extrapolating the SSP beyond the bottom by an error I received in an earlier trial run which indicated 'Last depth in soundspeed array must be beyond water depth: ...' which suggested extrapolation to beyond the bottom.

Again many thanks!

Any thoughts of extending the arlpy capability to building Range-dependent Sound Speed Profile Inputs as per http://oalib.hlsresearch.com/Rays/HLS-2010-1.pdf? There are now numerous 4D ocean model data sources which could feed such an input.

Regards,

U-S-S

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Thanks U-S-S, I've raised a feature request for the Range-dependent Sound Speed Profile feature in arlpy.uwapm.

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