For ice particles, when mie-sphere is used as the scattering model and the aspect ratio equals the default assumption of -99, then the routine that calculates density assumes always the minimum possible density.
The problem is avoided by simply imposing aspect ratio = 1.0 in the descriptor file, but I do not see a reason why the default behavior for ar=-99 should be this. Also, in a lot of examples and descriptorfiles distributed with pamtra the mie-sphere and ar=-99 is the combination of choice.
This has been already reported on the mailing list more than 1 year ago and should be fixed since it has impacted already some users
For ice particles, when mie-sphere is used as the scattering model and the aspect ratio equals the default assumption of -99, then the routine that calculates density assumes always the minimum possible density. The problem is avoided by simply imposing aspect ratio = 1.0 in the descriptor file, but I do not see a reason why the default behavior for ar=-99 should be this. Also, in a lot of examples and descriptorfiles distributed with pamtra the mie-sphere and ar=-99 is the combination of choice. This has been already reported on the mailing list more than 1 year ago and should be fixed since it has impacted already some users