Hi Mattia, hi Pengwang, Thanks Mattia for helping out. :-)
Since you were referring to Richard's earlier post, I'll take this opportunity to point out the searchable archive of this list, which might come in handy at times: https://www.mail-archive.com/arts_users.mi@lists.uni-hamburg.de/ Here is the post Mattia was referring to: https://www.mail-archive.com/arts_users.mi@lists.uni-hamburg.de/msg00471.html Cheers, Oliver > On 10 Feb 2022, at 17:38, mattia.sabat...@artov.ismar.cnr.it wrote: > > Pengwang, > > sorry for my partial answer. Recently I compiled ARTS 2.5 and I had a similar > issue concerning the absorption lookup table. Richard Larsson, helped me > replying to my mail sent in this mailing list, suggesting to add > abs_xsec_per_speciesAddLines into my cross-section agenda. > > He also added: > > "We are currently in a transition in the 2.5-branch of moving away from > abs_xsec_agenda entirely. There are some lingering problems when using > lookup table calculations at this time. Mainly, since the line calculations > should happen in propmat_clearsky_agenda now, they are not part of any of the > default cross-section agendas as in the past. The lookup generation > interface is currently under active development, so this interface might > change in the near future." > > Best regards, > Mattia > > > > > > Pengwang Zhai <pwz...@umbc.edu> ha scritto: > >> Thanks, Mattia. Would you advise how TestAbs.arts can be revised to include >> line-by-line calculation? >> >> Note that the behavior of TestAbs.arts is different in arts2.3, which does >> calculate line-by-line absorption coefficients. >> >> I do not want continua, as I am mainly interested in the visible spectra, >> which is out of most of those continuum models. Based on my experience with >> previous arts version, arts does not check the spectrum limits for the >> continuum models. I am not sure whether arts 2.5 has been improved on this. >> >> Pengwang >> >> >> >> >> >> >>> On Feb 10, 2022, at 9:46 AM, mattia.sabat...@artov.ismar.cnr.it wrote: >>> >>> Hi Pengwang, >>> >>> the controlfile TestAbs.arts, in line 15, has the following: >>> Copy(abs_xsec_agenda, abs_xsec_agenda__noCIA) >>> >>> I checked in controlfiles/general/agendas.arts for what >>> abs_xsec_agenda__noCIA does: >>> AgendaCreate( abs_xsec_agenda__noCIA ) >>> AgendaSet( abs_xsec_agenda__noCIA ){ >>> abs_xsec_per_speciesInit >>> abs_xsec_per_speciesAddConts >>> } >>> >>> Therefore the agenda calculates absorption for continua tag only (see >>> https://atmtools.github.io/arts-docs-master/docserver/methods/abs_xsec_per_speciesAddConts.html). >>> You selected H2O, and by doing this my guess is that you are not >>> considering continuum, as it is written in lines 36-37 of TestAbs.arts. >>> >>> I hope that this will help you, >>> >>> Mattia >>> >>> >>> Pengwang Zhai <pwz...@umbc.edu> ha scritto: >>> >>>> Hello, ARTS community, >>>> >>>> I downloaded and compiled the latest version of arts. Now I tested the the >>>> creation of abs_lookup with the example control file located in: >>>> >>>> arts/controlfiles/artscomponents/absorption/TestAbs.arts >>>> >>>> I only modified two occurrences of: >>>> >>>> abs_speciesSet( species=[ "H2O-PWR98", >>>> "O2-PWR93", >>>> "N2-SelfContStandardType" ] ) >>>> >>>> to: >>>> >>>> abs_speciesSet( species=[ "H2O" ] ) >>>> >>>> and run >>>> >>>> arts TestAbs.arts >>>> >>>> The resultant abs_lookup are all ZEROs. >>>> >>>> Any help? >>>> >>>> More background information: I used arts 2.3 to create abs_lookup for H2O, >>>> CO2, etc. in the visible by reading from HITRAN 2012. The baseline example >>>> was TestAbs.arts provided by the arts installation. Now I need to revisit >>>> the calculation based on HITRAN 2020, and the lookup table calculation >>>> seems not working with arts 2.5. I greatly appreciate it if you could >>>> provide a working example on how to create a abs_lookup with arts 2.5. >>>> >>>> Pengwang _______________________________________________ arts_users.mi mailing list arts_users.mi@lists.uni-hamburg.de https://mailman.rrz.uni-hamburg.de/mailman/listinfo/arts_users.mi
