Re: [arts-users] Consultant about the softwear "arts" and "qpack2"

[Lemke, Oliver]

Hi Jiawei Zhu,

> On 19. Dec 2022, at 21:42, Patrick Eriksson  
> wrote:
> 
> That said, there is no automatic way to select the line data to use for a 
> simulation, neither in qpack2 nor ARTS. The safest option is to load HITRAN 
> or arts-cat_data for a broad frequency range surrounding your frequency of 
> interest. But you could still need to complement this with some "continua".

Note that if you're using ARTS 2.4, you find the catalogs in the arts-xml-data 
package [1] in the subfolders spectroscopy/cat and spectroscopy/Hitran. 
arts-cat-data [2] is only compatible with the current development version 2.5.x.

Cheers,
Oliver

[1] https://radiativetransfer.org/misc/download/stable/2.4/
[2] https://radiativetransfer.org/misc/download/unstable/





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Re: [arts-users] Consultant about the softwear "arts" and "qpack2"

[Patrick Eriksson]

Dear Jiawei Zhu,

First of all, please note that there is no active development of qpack2. 
The primary way to make use of ARTS is today by Python.


That said, there is no automatic way to select the line data to use for 
a simulation, neither in qpack2 nor ARTS. The safest option is to load 
HITRAN or arts-cat_data for a broad frequency range surrounding your 
frequency of interest. But you could still need to complement this with 
some "continua".


If you only are interested in frequencies up to about 700 GHz, and don't 
care about ozone and other minor species, this setup could be sufficient:


abs_speciesSet( species=[ "N2-SelfContStandardType",
  "O2-PWR93",
  "H2O-PWR98" ] )


Bye,

Patrick


On 2022-12-18 12:47, 朱家玮 wrote:

Dear engineers in Arts:
I am Jiawei Zhu, a postgraduate student from School of Electronic Information 
in Wuhan University, China. Our research team wants to consult you about the 
usage of the software “arts” and “qpack2”:
There are some demos in the software “qpack2”, which is “Q.ABS_LINES   
= fullfile( atmlab_example_data, 'line110ghz' );”. We are not sure which is the 
right method of generating or obtaining the data in “line110ghz”. And we find 
it essential for the acquisition of brightness temperatures at different 
frequencies such as 183 GHz 633 GHz 640 GHz 658GHz.
We hope to get your reply soon, and we wish you a very happy day.

  Sincerely

   Jiawei Zhu

   2022.12.18

Re: [arts-users] scat_meta_single to scat_meta

[vito . galligani]

Hello!

Yes! I can use my own pnd_field. No problem. Thank you!

Vito

On 15.12.2022 18:39, Patrick Eriksson wrote:

Hi,

Thanks Oliver, I looked in the wrong function!

Hm, it seems that I forgot about fixing the full chain for the mono
PSDs, and that nobody has tried to use them until now. My mistake is a
bit shameful, but I feel reluctant to fix it now, as the present PSD
system hopefully will be replaced soon.

Vito, it seems that you already have considered generating pnd_field
yourself. I hope you can live with this solution for the mono PSD. If
you get confused about the cloudbox limits, you can try to use
pnd_fieldCalcFrompnd_field_raw. That method will adjust pnd_field to
the selected cloudbox.

Bye,

Patrick



On 2022-12-15 07:51, Lemke, Oliver wrote:

Hi Patrick, hi Vito,

On 14. Dec 2022, at 20:04, Patrick Eriksson 
 wrote:



   pndFromPsdBasic
}
Append( scat_species, species_id_string )
Append( pnd_agenda_array_input_names, pnd_agenda_input_names )
But the error message is that:
The method requires that length of *psd_size_grid* is >= 2.


I must ask what ARTS version you are using? In the version I have on 
my computer it looks OK. At least, I can not find this error message.


Tbe check does exist in ARTS master as well as 2.4. It's the first 
check in pndFromPsdBasic in m_microphysics.cc.


Cheers,
Oliver

[arts-users] Fwd: Job opening: staff position at ESA-ESRIN, focus EarthCARE

[Buehler, Stefan]

> Anfang der weitergeleiteten Nachricht:
> 
> Von: Tobias Wehr 
> Betreff: Job opening: staff position at ESA-ESRIN, focus EarthCARE
> Datum: 19. Dezember 2022 um 09:32:35 MEZ
> An: Undisclosed recipients:;
> 
> Dear colleague, 
>  
> I would like to draw your attention to a staff position opening at ESA-ESRIN 
> in Frascati. The incumbent will be working primarily on the EarthCARE 
> mission, during the presently on-going preparations for launch in 2024 and 
> afterwards during the mission exploitation phase. This is a unique job 
> opportunity working at ESA for the challenging and highly sophisticated 
> cloud-aerosol-radiation mission with numerous data processors and a complex 
> validation programme. The job will also include setting up and managing the 
> EarthCARE DISC. For details please see 
> https://jobs.esa.int/job/Frascati-Atmospheric-Composition-Scientist/878338301/.
>  I would very much appreciate if you could kindly pass this information on to 
> suitable candidates. (Please note nationality restrictions.)
>  
> Many thanks and kind regards,
> Tobias
>  
> European Space Agency 
> Dr. Tobias Wehr
> Atmospheric Section (EOP-SMA)
> Earth and Mission Science Division
> ESTEC, Keplerlaan 1
> NL-2201 AZ Noordwijk, The Netherlands
> Phone: +31 63928 5274 
> 
>  
> This message is intended only for the recipient(s) named above. It may 
> contain proprietary information and/or protected content. Any unauthorised 
> disclosure, use, retention or dissemination is prohibited. If you have 
> received this e-mail in error, please notify the sender immediately. ESA 
> applies appropriate organisational measures to protect personal data, in case 
> of data privacy queries, please contact the ESA Data Protection Officer 
> (d...@esa.int ).



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