Dear Facundo, As I understand your question, the answer is no. Or at least, this can not be done automatically.
However, if you think that H2O and temperature can give substantial errors (I can not see how O2 should give rise to an error), you should retrieve H2O and T in parallel to O3. That will decrease the impact of H2O and T. In short, OEM will then adjust as far as possible to H2O and T uncertainties. The impact of H2O and T will then be included in the standard error estimate. You have seen that Qpack can give you the error covariance matrix? If you retrieve H2O and T, what you call df/dH2O and df/dT are part of the (total) Jacobian matrix, that you can trigger Qpack to output, i.e. L2.J. The fields L2.jq and L2.ji give you information about what part of J that belong to H2O and T etc. That should give you a way to calculate separate errors. Bye, Patrick On 10/27/15 20:15, Facundo Orte wrote: > Dear all, > I am very new using Qpack. I am setting Qpack to retrieve ozone profiles > using ARTS. At this moment, I am able to retrieve coherent ozone > profiles, but to calculate covariance matrix I am trying to get the > jacobian for water vapor (df/dH2O), oxygen(df/dO2) and temperature > (df/dT) (to include the uncertainties of these gases and temperature), > due to these gases absorb radiation in the frequency range of > measurement. Is it possible to get these jacobians at the same time as > the retrieval species (O3)? > Thanks in advance > > Regards > Facundo > > > _______________________________________________ > qpack mailing list > [email protected] > https://www.sat.ltu.se/mailman/listinfo/qpack > _______________________________________________ qpack mailing list [email protected] https://www.sat.ltu.se/mailman/listinfo/qpack
