Hi Emma, CC to qpack list as this is of general interest. And we prefer if all questions go to any of the arts and qpack lists.
The answer is: [y,y_aux] = arts_y( Q ); There is now way to obtain the aux vars by qpack2. If you want this information you must use the more general qarts system, where then arts_y is the function to use. Or, of course, using arts directly. Bye, Parick On 2014-11-27 15:07, Turner, Emma C. wrote: > Thanks Patrick, > > It runs now, how do I extract the data for tau from Y? > > Bye, > Emma > ________________________________________ > From: Patrick Eriksson [[email protected]] > Sent: 27 November 2014 13:50 > To: Turner, Emma C.; [email protected] > Subject: Re: [Qpack] Obtaining Y units of Transmission from q_pack > > Dear Emma, > > Uuups, a piece of documentation that has not been updated. I will fix that. > > I assume you use iyEmissionStandard, then you can check out the aux var > options by > > arts -d iyEmissionStandard > > That is, the option is > > Q.IY_AUX_VARS = { 'Optical depth' }; > > that gives you tau, which you easiliy can covert to transmission. > > Bye, > > Patrick > > > On 2014-11-27 14:43, Turner, Emma C. wrote: >> Dear mailing list, >> >> Using the ARTS forward model to simulate a ground-based sensor I am >> looking to obtain total Transmission values (in %) in addition to >> Brightness Temperature values. ARTS leads me to believe I can do this >> using iy_aux_vars where in the documentation it states that >> "Transmission, total" is a valid option when I use ycalc - >> http://www.sat.ltu.se/arts/docserver-stable/variables/iy_aux_vars >> >> I'm having trouble with the syntax in q_pack2, when I include >> >> Q.IY_UNIT = 'PlanckBT'; Q.YCALC_WSMS = { 'yCalc' >> }; Q.IY_AUX_VARS = { 'Transmission' } >> >> to the code it complains that, 'For calculations using yCalc, >> *iy_aux_vars* can not include variables of along-the-path or >> extinction matrix type.' but when I add 'Total' like it suggests in >> the documentation >> >> Q.IY_AUX_VARS = { 'Transmission', 'Total' } >> >> it complains that, 'In *iy_aux_vars* you have included: "Total". This >> choice is not recognized.' >> >> Can someone help me? >> >> Many thanks Emma >> >> This message (and any attachments) is for the recipient only. NERC is >> subject to the Freedom of Information Act 2000 and the contents of >> this email and any reply you make may be disclosed by NERC unless it >> is exempt from release under the Act. Any material supplied to NERC >> may be stored in an electronic records management system. >> _______________________________________________ qpack mailing list >> [email protected] https://www.sat.ltu.se/mailman/listinfo/qpack >> > > This message (and any attachments) is for the recipient only. NERC is subject > to the Freedom of Information Act 2000 and the contents of this email and any > reply you make may be disclosed by NERC unless it is exempt from release > under the Act. Any material supplied to NERC may be stored in an electronic > records management system. > _______________________________________________ qpack mailing list [email protected] https://www.sat.ltu.se/mailman/listinfo/qpack
