Thanks Patrick!!! When I use robust=1 I get The number of pages in *surface_reflectivity* should match length of *f_grid* or be 1. length of *f_grid* : 1 dimension of *surface_reflectivity* : 4
What is the robust condition that can trigger this error? Thanks Patrick! On Sat, Feb 9, 2019 at 5:22 AM Patrick Eriksson < patrick.eriks...@chalmers.se> wrote: > Victoria, > > The warning about normalization is common, so that's known. But not the > error. The error should in principle be tracked down, but I have no time > for that. In addition, there should hopefully be a new version of the > RT4 interface at some point where the normalization not will be an issue > (the guys in Hamburg is working on this, but will take time before the > work is done). > > So let's see if there is a workaround. Are you using the robust option? > If not, try it. > > Some time since I run RT4, but I think I had nstreams=8, robust=1 and > auto_inc_nstreams=16. Try something like this. But note that the > normalization warning is then swept under the carpet and the accuracy of > some calculations could be a bit poor. > > Bye, > > Patrick > > > > > > On 2019-02-08 20:31, Victoria Sol Galligani wrote: > > Hi! I'm having some trouble running RT4 with 2 stokes dimensions and > > azimuthally random frozen particles (with dielectric properties > > calculated from the maxwell garnett formula) for frequencies up to 170 > GHz. > > > > For small particles there are no problems, but when I increase particles > > (still fairly small particules, diameter = 300 um), I start getting > > errors abour the scattering matrix normalization: > > > > Bulk scattering matrix normalization deviates significantly > > from expected value (13.4591%, resulting in albedo deviation of > 0.105869). > > Something seems wrong with your scattering data (did you run > > *scat_dataCheck*?) > > or your RT4 setup (try increasing *nstreams* and in case of randomly > > oriented particles possibly also pfct_aa_grid_size). > > > > Could not increase nstreams sufficiently (current: 18) > > to satisfy scattering matrix norm at f[3]=166 GHz. > > Try higher maximum number of allowed streams (ie. higher > > auto_inc_nstreams than 19). > > > > Trying with higher number of nstreams, or trying to use > > auto_inc_nstreams takes me to the following error: > > > > Assertion failed: (p < mpr.mextent), function operator(), file > > > /Users/victoria.galligani/Work/Software/ARTS/arts_DEC2018/src/matpackV.h, > line > > 374. > > Playing with the angular grids yields the same errors. Does anyone have > > any comments or suggestions ? Has anyone encountered this before? > > I have been trying also different versions of ARTS. Mainly > > arts-2-3-1171, but also arts-2-3-849. > > > > Thank you in advance! > > > > Victoria > > > > > > _______________________________________________ > > arts_users.mi mailing list > > arts_users.mi@lists.uni-hamburg.de > > https://mailman.rrz.uni-hamburg.de/mailman/listinfo/arts_users.mi > > >
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