Date   
Re: Omitting "receive_buffer_size=8000000" from the channels file?

Ernst Lobsiger
 

David,

IIRC we had a discussion  re receive_buffer_size beginning with this post:

https://groups.io/g/MSG-1/message/26902

At that time the default was 4000000. AFAIK the client begins to complain
if it's set too low for HVS (but this may be specific for the GNU/Linux client).
There was a note in TD-15 at that time (didn't check the current version).

Regards,
Ernst

Omitting "receive_buffer_size=8000000" from the channels file?

David J Taylor
 

Has anyone tried omitting the "receive_buffer_size=8000000" in the TelliCast cast_client_channels.ini file, and if so, what effects did you observe? Anything in the log files?

Oh, and this may be old ground, but "receive_buffer_size" isn't documented in the TelliCast help, but a "stream_buffer" parameter is. Both appear to be in the executable file.

Thanks,
David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv

MSG Animator

Ian Deans
 

Is anyone on this group successfully running Animator on a 4K monitor.

I now have a 32" 4K monitor and I am finding it almost impossible to set it up with the animations I want and it will not allow a width of 3840.

I suspect the issue may be that the recommended DPI is 150% ( 100% too small )

My previous monitor 3440 x 1440 was fine but although I increased some text sizes a little the recommended DPI was 100%.

Regards
Ian.

Re: Pytroll/SatPy for EUMETCast

Christian Peters
 

Graham,

as Ernst said there is no natural color HRV available.
You could try 'hrv_clouds'.

The image you attached is a colorized HRV image, not implemented till now in SatPy.

Regards,

Christian

Re: Pytroll/SatPy for EUMETCast

Ernst Lobsiger
 

Graham,

as HRV is just one visual channel there is no such thing as a "high resolution colour composite".
HRV can be used to "sharpen" composites. Some such things are found in the seviri.yaml file.
You will also have to resample the scene (1km + 3km resolution) and project to a nothern area.

You might also want to google for "SatPy HRV sharpened composite" to see what others do.

Regards,
Ernst

Re: Pytroll/SatPy for EUMETCast

Graham Woolf
 

Hi

Can anyone tell me if it is possible to get a high resolution colour composite of just the northern HRV image using Python

I cant seem to find one that will give me an image like the one attached (this is not the full resolution image)

Kind Regards

Graham

Re: Pytroll/SatPy for EUMETCast

Douglas Deans
 

Ernst, just to confirm that I have started the install using your HOWTO txt file and so far thanks to your detail and clarity all seems to have gone well despite the huge learning curve !

However I am treating this as a learning project and so proceeding slowly and deliberately. I also have other things on at the moment.

Just wanted to let you know that despite silence at this end I am having a go with slow but good progress and to say thanks again for your efforts.

Regards,
Douglas.

Re: TP 1 data rate.

David J Taylor
 

David,

Thanks for the link.

I was aware that there was a 'new' update for Tellicast and a new EKU available but had forgotten about it.

Reading it again suggests that you can continue to use the 'old system.'
Which is probably why I did nothing and forgot about it.

However EUMETSAT no longer support the older version of Tellicast software.

So, without bothering Ops at this time, what is the advantage(?) of 2.14.5?
And the advantage(?) of the new EKU.

I thought all of us with old EKU's would be supplied with a new one - but this seems not to be the case?

Regards,
John.
=====================================

John,

I think that if you break your eToken it will be replaced with a new model (requiring a software update, of course).

I recall (vaguely) that newer versions of TelliCast may require the newer eToken. Other than that it was updates and fixes. At one stage TelliCast was updated for some of the new data, but you'd have to search back through the group archive for more info. There is a search function. Or use the Internet!

Cheers,
David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv

Re: TP 1 data rate.

geojohnt@...
 

David,

Thanks for the link.

I was aware that there was a 'new' update for Tellicast and a new EKU available but had forgotten about it.

Reading it again suggests that you can continue to use the 'old system.'
Which is probably why I did nothing and forgot about it.

However EUMETSAT no longer support the older version of Tellicast software.

So, without bothering Ops at this time, what is the advantage(?) of 2.14.5?
And the advantage(?) of the new EKU.

I thought all of us with old EKU's would be supplied with a new one - but this seems not to be the case?

Regards,
John.

++++++++++++++++++++++++++ 


John,


Expand the EUMETCast Europe section here:

  https://www.eumetsat.int/website/home/Data/DataDelivery/EUMETCast/ReceptionStationSetup/index.html

77 Mbps at the IP level.  Same for TP2.

Cheers,
David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv




Re: Pytroll/SatPy for EUMETCast

Christian Peters
 

Ernst,

that's quite more in depth information...I will withdraw as your posts are more scientifically sound. :-D

regards,

Christian

P.S.: I hope you found some distraction in the garden!?

Am 07.05.20 um 23:35 schrieb Ernst Lobsiger via groups.io:

Graham,
On Thu, May 7, 2020 at 02:11 PM, Graham Woolf wrote:
How do I know which file its looking in,  the sevri or the visir
First you look in the specific seviri file (as Meteosat has the seviri sensor). Almost all the receipts
found there have been developed and added by one member of the Pytroll/Satpy google group.
Then you look in the *generic* visir (Visual Infrared) that may be used by different sensors in part.
visir may also be a remnant of early Satpy development. As some kind of germans say: It it wi et it.
Regards
Ernst

Re: Pytroll/SatPy for EUMETCast

Ernst Lobsiger
 

Graham,

On Thu, May 7, 2020 at 02:11 PM, Graham Woolf wrote:
How do I know which file its looking in,  the sevri or the visir
First you look in the specific seviri file (as Meteosat has the seviri sensor). Almost all the receipts
found there have been developed and added by one member of the Pytroll/Satpy google group.

Then you look in the *generic* visir (Visual Infrared) that may be used by different sensors in part.
visir may also be a remnant of early Satpy development. As some kind of germans say: It it wi et it.

Regards
Ernst

Re: Pytroll/SatPy for EUMETCast

Christian Peters
 

Graham,

this channels are no channels from the MSG satellite, it's computed NowCasting data as I understand from MSG or Metop etc.)
You need additional files to extract this CTTH channels, I think like :

https://navigator.eumetsat.int/product/EO:EUM:DAT:0060?query=CTTH&s=simple

Some more info:
http://www.eumetsat.int/website/wcm/idc/idcplg?IdcService=GET_FILE&dDocName=PDF_NWC_CLOUD_EUR_FS&RevisionSelectionMethod=LatestReleased&Rendition=Web


Regards,

Christian


Am 07.05.20 um 23:11 schrieb Graham Woolf:

Hi Ernst
I did RTFM but if you look in the visir.yaml you get
  cloud_top_height:
    compositor: !!python/name:satpy.composites.cloud_products.CloudTopHeightCompositor
    prerequisites:
    - ctth_alti
    - ctth_alti_pal
    - ctth_status_flag
    standard_name: cloud_top_height
How do I know which file its looking in,  the sevri or the visir
As you can see in the visir there are no channels shown
Kind Regards
Graham

Re: Pytroll/SatPy for EUMETCast

Graham Woolf
 

Hi Ernst

I did RTFM but if you look in the visir.yaml you get


  cloud_top_height:
    compositor: !!python/name:satpy.composites.cloud_products.CloudTopHeightCompositor
    prerequisites:
    - ctth_alti
    - ctth_alti_pal
    - ctth_status_flag
    standard_name: cloud_top_height

How do I know which file its looking in,  the sevri or the visir

As you can see in the visir there are no channels shown


Kind Regards

Graham

Re: Pytroll/SatPy for EUMETCast

Christian Peters
 

Graham

cloudtop:
compositor: !!python/name:satpy.composites.GenericCompositor
prerequisites:
- 3.9
- 10.8
- 12.0
standard_name: cloudtop

see table from Ernst script:

# Channel | VIS006 | HRV | VIS008 | IR_016 | IR_039 | WV_062 |
# WaveLen | 0.635 | 0.7 | 0.81 | 1.64 | 3.90 | 6.25 |
# --------+--------+--------+--------+--------+--------+--------+
# Channel | WV_073 | IR_087 | IR_097 | IR_108 | IR_120 | IR_134 |
# WaveLen | 7.35 | 8.70 | 9.66 | 10.80 | 12.00 | 13.40 |

I woul recommend to load all! chnalles in a demo script and the you can play around with different composites and not have to take care toload the channles neede.

So for cloudtop you need:

IR_016, IR_108 and IR_120

Regards,

Christian

Am 07.05.20 um 18:10 schrieb Graham Woolf:

Hi Christian
How do I process the cloud top composites
There is no indication in visir.yaml of the channesl needed for processing
Presumably I need other files do I ?
Kind Regards
Graham

Re: Pytroll/SatPy for EUMETCast

Ernst Lobsiger
 

Graham,

On Thu, May 7, 2020 at 09:10 AM, Graham Woolf wrote:
There is no indication in visir.yaml of the channesl needed for processing
it's all in the seviri.yaml file I attached for you a few posts back. You *have to* RTFM.

 cloudtop:
    compositor: !!python/name:satpy.composites.GenericCompositor
    prerequisites:
    - name: IR_039
      modifiers: [co2_corrected]
    - IR_108
    - IR_120
    standard_name: cloudtop

  cloudtop_daytime:
    compositor: !!python/name:satpy.composites.GenericCompositor
    prerequisites:
    - name: IR_039
      modifiers: [nir_emissive]
    - IR_108
    - IR_120
    standard_name: cloudtop
and much more that you can do with:

#************************************************************************
#
# European geostationary satellite Meteosat-11 (MSG4) at 0.0 degrees East
#------------------------------------------------------------------------
# EUMETSAT is EUMETCast disseminating MSG4 data in EUMETSAT_Data_Channel_2
# Meteosat-11 (MSG4), at 0.0 noon is exactly 12:00 UTC, instrument "seviri"
#
# Channel | VIS006 |   HRV  | VIS008 | IR_016 | IR_039 | WV_062 |
# WaveLen |  0.635 |   0.7  |   0.81 |   1.64 |   3.90 |   6.25 |
# --------+--------+--------+--------+--------+--------+--------+
# Channel | WV_073 | IR_087 | IR_097 | IR_108 | IR_120 | IR_134 |
# WaveLen |   7.35 |   8.70 |   9.66 |  10.80 |  12.00 |  13.40 |
#
# CH-3123 Belp, 2020/05/05       License GPL3          (c) Ernst Lobsiger
#
#************************************************************************

Cheers,
Ernst

Re: Pytroll/SatPy for EUMETCast

Graham Woolf
 

Hi Christian

How do I process the cloud top composites

There is no indication in visir.yaml of the channesl needed for processing

Presumably I need other files do I ?

Kind Regards

Graham

Re: TP 1 data rate.

David J Taylor
 

Hello All,

Does anyone know the current total and maximum possible data rate, that TP 1 can disseminate?

I saw a couple of bursts of + 74 Mbps yesterday around 12:19 UTC.

Also, my instances of 2-3 second 'bursts' of negative Mbps with the SR1 dials seems to be increasing.
Or perhaps I'm just spending too much time at the computer?

Regards,
John.
======================================

John,

Expand the EUMETCast Europe section here:

https://www.eumetsat.int/website/home/Data/DataDelivery/EUMETCast/ReceptionStationSetup/index.html

77 Mbps at the IP level. Same for TP2.

Cheers,
David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv

Re: Pytroll/SatPy for EUMETCast

Ernst Lobsiger
 

Christian,

On Thu, May 7, 2020 at 08:35 AM, Christian Peters wrote:
If you process MSG, Satpy looks in seviri.yaml and in visir.yaml.
yes I know. All that Graham has to do is provide a list of needed_files=[...] to decompress
with the wavelengths in visir and the channel naming of the SEVIRI in the pyscript header.

Going for work in my garden now. No more corona(at) home schooling for some time.

Cheers,
Ernst

Re: Pytroll/SatPy for EUMETCast

Graham Woolf
 

Hi Christian

Thanks, found it now and have an image

Many thanks

Graham

Re: Pytroll/SatPy for EUMETCast

Christian Peters
 

Ernst and Graham,

you don't have to.
If you process MSG, Satpy looks in seviri.yaml and in visir.yaml.
So you can choose composites in visir.yaml too ...if the channels match.

Regards,

Christian

Am 07.05.20 um 17:24 schrieb Ernst Lobsiger via groups.io:

On Thu, May 7, 2020 at 07:56 AM, Graham Woolf wrote:
I have had a look and I cant see an airmass composite for Meteosat anywhere which is strange
Graham,

Maybe you can use the definition of the more generic VISIR "instruments". SEVIRI has the right stuff.

Regards,
Ernst