Hi,
If you are familiar with python, or want to be, I recommend that you
switch to it. In python you have access to a proper interface to ARTS,
and you can run it truly interactively. And you can get more help. I am
the only one of the core developers that still is using matlab.
It is then Typhon ypu should look at. Not PyARTS, it's old.
Bye,
Patrick
On 2020-08-13 21:12, Thomas,Renish wrote:
Thanks Patrick for the clarification,
I saw one of the Atmlab scattering demo examples which uses IWP as an
input, which later is converted to PND (Partcile Number Density) before
calling ARTS.
I am still trying to use Atmlab for scattering calculations with
particle size distributions with a cloud box, due to the ease of using
Matlab.
Do you recommend a better way? like PyARTS or using ARTS by itself for
scattering calculations?
Thanks,
Renish Thomas
------------------------------------------------------------------------
*From:* Patrick Eriksson <patrick.eriks...@chalmers.se>
*Sent:* Tuesday, August 11, 2020 8:29 AM
*To:* Thomas,Renish <renish.tho...@colostate.edu>;
arts_users.mi@lists.uni-hamburg.de
<arts_users...@mailman.rrz.uni-hamburg.de>
*Subject:* Re: [arts-users] IWP in ARTS
Dear Renish,
ARTS does not take IWP, TWP etc as input. You need to specify e.g. IWC,
LWC, humidity ...
And the specification of the atmospheric profiles is independent of the
observation geometry. You specify the profiles as a function of pressure.
Not clear how you are running ARTS by Atmlab. Please note that qarts
(and qpack even less) is mainly for calculations without scattering. You
can do scattering calculations but then you really need to know how ARTS
is working.
Bye,
Patrick
On 2020-08-10 22:22, Thomas,Renish wrote:
Hi All,
I had a question about how ARTS treats integrated water path ( IWP ).
*My simulation setup*:
I am trying to sense a cloud box , with the sensor looking forward. (i.e
elevation 0 degrees). I am using ARTS with Atmlab.
*My questions:*
*a). *How to calculate IWP/LWP (which is an input for ARTS) for the case
of horizontal sounding of an extended cloud. Or how to use droplet
density as an input instead of IWP.
*b). *Can i give IWP as an input for all elevations? Does the radiative
transfer calculations in these cases behave properly for off zenith and
off nadir look angles.
As i believe LWP = TPW for the case of nadir-zenith sensing of an
entire atmosphere.
*LWP*(Liquid Water Path)
*TPW*(Total Precipitable Water)
Cheers,
Renish
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