Thank you for the quick reply and comments on the updated papers.

We will definitely add Mr. Larsson to the list of co-authors when the research 
using this dataset is published.

Unfortunately, I am already having problems reading the dataset.
I have downloaded the file "O2-66.xml" from,
but I cannot read the file with any reading function that are known to me.

For example, the following line:
"ReadXML(abs_lines, "O2-66.xml")"

Generates the following error message:
"Species "" is not a valid species."

I've tried several other read functions, but I have a feeling I'm missing 

Best regards

Von: arts_users.mi <> im Auftrag von 
Buehler, Stefan <>
Gesendet: Montag, 12. September 2022 14:21:05
An: Richard Larsson
Cc: arts users mi; Krochin, Witali (IAP)
Betreff: Re: [arts-users] Temperature Retrievals of Oxygen emission lines with 
Zeeman effect and line mixing

Dear Witali,

since these are unpublished data, I would ask you to include Richard as a 
coauthor if you intend to publish anything based on this.

Best wishes


Am 12.09.2022 um 14:09 schrieb Richard Larsson <>:

Dear Witali,

You can use my calculations for line mixing.  They are still not published but 
available online in the arts-cat-data.  They have the disadvantage that they 
are not published but the advantage that they are self-consistent.  You can 
download this data at, under the Arts 
Catalog Data header.

The format is simply x0 x1 x2 x3 from table 2.5 of the theory guide at the 
correct positions by what the xml-tags say.

Note that the paper you found has been updated several times.  Two updates are 
at these dois: and

Note especially that these correct their values in the first paper because they 
found some theoretical errors.  Also note that my implementation in Arts today 
differs from the one written in these papers because there are some weird typos 
in there.

With hope,

Den mån 12 sep. 2022 kl 13:30 skrev 
Dear ARTS Team

I am currently using the Zeeman module to retrieve stratospheric temperature 
profiles from oxygen emission lines from fine structure transitions at 52.542 
and 53.067 GHz. I correct for the tropospheric influence using a simple 
tropospheric correction. However, I intend to improve the inversion algorithm 
by including line-mixing calculations instead.
First, I am having trouble figuring out how to get line-mixing data. I found 
"Makarov, Tretyakov, and Rosenkranz, 2011" as a standard reference for 
line-mixing data in this frequency range. However, it seems to me that only the 
emission complex at 60 GHz is covered there. Is there any line mixing data for 
the emission lines at 52.542 and 53.067 GHz?

Also, I would need some guidance on the implementation of the line mixing 
module. I guess the data set should be in a certain format, which I did not 
find in the ARTS manual or documentation (maybe I missed something?).

With kind regards
Witali Krochin

Reply via email to