Date   

Re: HRV image deterioration

Ian Deans <isdeans1.-_@...>
 

James, I think I am seeing this as well when I look more closely. It is really quite difficult to see in 1:1 but when you zoom to 2:1 it is quite evident. I was looking particularly at Italy. Obviously at 2:1 zoom the image is blurred, but could the corrugated effect simply be the result of pixellation at such a high zoom ?

Regards
Ian.

----- Original Message -----
From: "James Brown" <satellite@meteosat.co.uk>
To: <MSG-1@yahoogroups.com>
Sent: Friday, May 05, 2006 9:53 AM
Subject: [MSG-1] HRV image deterioration


I wonder if it is just me - but have any others noticed a deterioration
in the HRV imagery of recent days?

The effect for me shows up most noticeably in zoomed images, where there
are clear edges such as in coastlines and rivers. There appears now a
corrugated effect along the edges, which I don't recall being there
before. It reminds me a little of the Meteosat 7 double AV PDUS images
which because of the scan synchronisation couldn't quite get an accurate
match of alternate lines.

Looking at one image from a few months ago the effect doesn't seem
visible, so I just wonder if it is my misinterpretation of the artefact,
or whether a degradation really has taken place.

Cheers

James
--
James Brown


Re: HRV image deterioration

James Brown
 

I don't see that here, James, at least on a quick first look.

Could you give a date, time and approximate location where the problems
can be seen?

Thanks,
David
Thanks to you and Douglas for a swift response.

My problem is that I don't keep an archive of HRV images, so there is at the moment an element of subjectivity, but I remain convinced that the anomaly is there. If e.g. using GSS you zoom in on the Nile Delta region and in particular the Red Sea coastline and the Nile valley in 2:1 magnification - do you not see this corrugated effect? I know I have some of the very first MSG files on CD so I will try and dig them out and put a side by side comparison on a web site.

Douglas, I do save in PNG format, my preferred option.

Cheers

James
--
James Brown


Re: HRV image deterioration

Douglas Deans <dsdeans@...>
 

----- Original Message -----
From: "James Brown" <satellite@meteosat.co.uk>
To: <MSG-1@yahoogroups.com>
Sent: Friday, May 05, 2006 9:53 AM
Subject: [MSG-1] HRV image deterioration


I wonder if it is just me - but have any others noticed a deterioration
in the HRV imagery of recent days?

The effect for me shows up most noticeably in zoomed images, where there
are clear edges such as in coastlines and rivers. There appears now a
corrugated effect along the edges, which I don't recall being there
before. It reminds me a little of the Meteosat 7 double AV PDUS images
which because of the scan synchronisation couldn't quite get an accurate
match of alternate lines.

Looking at one image from a few months ago the effect doesn't seem
visible, so I just wonder if it is my misinterpretation of the artefact,
or whether a degradation really has taken place.

Cheers

James

James I am not seeing this but all my HRIT are saved in PNG. Try saving in
PNG for a short time and see if the effect has gone.

Regards
Douglas.


Re: fire-spots in Russia ?

Robert Denton
 

Not just farmers burning fields. I have a friend who lives in Omsk, Asiatic Russia and she told me that wild fires are a constant problem there.

Rob

----- Original Message -----
From: "Ulrich G. Kliegis" <Ulrich.Kliegis@kliegis.de>
To: <MSG-1@yahoogroups.com>
Sent: Friday, May 05, 2006 9:42 AM
Subject: Re: [MSG-1] fire-spots in Russia ?


On 1 May 2006 at 14:43, Kornel Kollath wrote:

Today I can see a lot of light noisy spots in the 149 composite
images (high temperature spots in the 3.9mikrom) in Russia and some
spots in Ukraine and Latvia as well... Im thinking about this... Are
these fires ? What do you think ?
The day after our previous speculation, there was an image of these
fires in the weather report of ZDF, the second public TV programme.
The explanation is burning fields. Farmers used the dry weather to burn
down stubble fields. The smoke was transported by the present high
pressure system to northwest up to the northern North Sea.

Regards,
U.




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Re: HRV image deterioration

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

James Brown wrote:
I wonder if it is just me - but have any others noticed a
deterioration in the HRV imagery of recent days?

The effect for me shows up most noticeably in zoomed images, where
there are clear edges such as in coastlines and rivers. There appears
now a corrugated effect along the edges, which I don't recall being
there before. It reminds me a little of the Meteosat 7 double AV PDUS
images which because of the scan synchronisation couldn't quite get
an accurate match of alternate lines.

Looking at one image from a few months ago the effect doesn't seem
visible, so I just wonder if it is my misinterpretation of the
artefact, or whether a degradation really has taken place.

Cheers

James
I don't see that here, James, at least on a quick first look.

Could you give a date, time and approximate location where the problems can be seen?

Thanks,
David
--
SatSignal software - quality software written to your requirements
Web: http://www.satsignal.net
Email: davidtaylor@writeme.com





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Re: fire-spots in Russia ?

James Brown
 

In message <445B2C1D.26249.33FAF5@localhost>, Ulrich G. Kliegis <Ulrich.Kliegis@kliegis.de> writes
On 1 May 2006 at 14:43, Kornel Kollath wrote:

Today I can see a lot of light noisy spots in the 149 composite
images (high temperature spots in the 3.9mikrom) in Russia and some
spots in Ukraine and Latvia as well... Im thinking about this... Are
these fires ? What do you think ?
The day after our previous speculation, there was an image of these
fires in the weather report of ZDF, the second public TV programme.
The explanation is burning fields. Farmers used the dry weather to burn
down stubble fields. The smoke was transported by the present high
pressure system to northwest up to the northern North Sea.

Regards,
U.
That also might explain the haziness evident in the visible channel for NW Europe. I did wonder what was causing that.

Cheers,

James
--
James Brown


Re: fire-spots in Russia ?

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

Ulrich G. Kliegis wrote:
On 1 May 2006 at 14:43, Kornel Kollath wrote:

Today I can see a lot of light noisy spots in the 149 composite
images (high temperature spots in the 3.9mikrom) in Russia and some
spots in Ukraine and Latvia as well... Im thinking about this... Are
these fires ? What do you think ?
The day after our previous speculation, there was an image of these
fires in the weather report of ZDF, the second public TV programme.
The explanation is burning fields. Farmers used the dry weather to
burn
down stubble fields. The smoke was transported by the present high
pressure system to northwest up to the northern North Sea.

Regards,
U.
See also:

http://earthobservatory.nasa.gov/NaturalHazards/shownh.php3?img_id=13540

Cheers,
David
--
SatSignal software - quality software written to your requirements
Web: http://www.satsignal.net
Email: davidtaylor@writeme.com



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HRV image deterioration

James Brown
 

I wonder if it is just me - but have any others noticed a deterioration in the HRV imagery of recent days?

The effect for me shows up most noticeably in zoomed images, where there are clear edges such as in coastlines and rivers. There appears now a corrugated effect along the edges, which I don't recall being there before. It reminds me a little of the Meteosat 7 double AV PDUS images which because of the scan synchronisation couldn't quite get an accurate match of alternate lines.

Looking at one image from a few months ago the effect doesn't seem visible, so I just wonder if it is my misinterpretation of the artefact, or whether a degradation really has taken place.

Cheers

James
--
James Brown


Re: fire-spots in Russia ?

Ulrich G. Kliegis
 

On 1 May 2006 at 14:43, Kornel Kollath wrote:

Today I can see a lot of light noisy spots in the 149 composite
images (high temperature spots in the 3.9mikrom) in Russia and some
spots in Ukraine and Latvia as well... Im thinking about this... Are
these fires ? What do you think ?
The day after our previous speculation, there was an image of these
fires in the weather report of ZDF, the second public TV programme.
The explanation is burning fields. Farmers used the dry weather to burn
down stubble fields. The smoke was transported by the present high
pressure system to northwest up to the northern North Sea.

Regards,
U.


Re: New to this group pls need some information FREQUENCY ?

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

geojohnt@aol.com wrote:
[]
So, basically, the data is being generated by EUMETSAT's
meteorological satellites but all their data is now being
disseminated via the EUMETCast service via commercial satellites -
EUTELSAT'S Hot Bird 6 at 13 deg. E in the
Ku-band and Atlantic Bird-3 at 5 Deg. W in C-band.

Regards,
John Tellick.
GEO.
Actually there are now two relays, the newer NSS806 one convering South America and much of North America. As Arne pointed out from the EUMETSAT Web page:

http://www.eumetsat.int/idcplg?IdcService=SS_GET_PAGE&;nodeId=509&l=en

Cheers,
David
--
SatSignal software - quality software written to your requirements
Web: http://www.satsignal.net
Email: davidtaylor@writeme.com

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Re: New to this group pls need some information FREQUENCY ?

geojohnt@...
 

In a message dated 03/05/2006 06:57:38 GMT Standard Time,
skypecallme@yahoo.com writes:

do they have a satellite tv channel that broadcats if yes what is
the frequency and the symbol rate pls


Yes, a full list of TV channels broadcast on EUTELSAT's Hot Bird location
can be found at:

_www.eutelsat.com_ (http://www.eutelsat.com)

Regards,
John Tellick.


Re: New to this group pls need some information FREQUENCY ?

geojohnt@...
 

Hi,

Perhaps I could give you some information which might help?

Several members have given links - David Taylor's website and EUMETSAT's
website.
I would also add there is a lot of information regarding EUMETCast on the
GEO website:
_www.geo-web.org.uk_ (http://www.geo-web.org.uk)

Now, EUMETSAT currently have 4 operational satellite - Meteosat-5 at 63 deg.
E over the Indian Ocean, Meteosat-6 undertaking the Rapid Scan Service at 10
deg. E, Meteosat-7 at 0 deg. still disseminating WEFAX and PDUS till June
14th 2006 and Meteosat-8 [MSG-1] at 3.4 deg. W.

Owing to power amplifier failures onboard MSG-1 EUMETSAT had to find another
means of disseminating the data normally sent directly by their 'Meteosat'
satellites.
They chose the Hot Bird constellation at 13 deg. E [Hot Bird 1, 2, 3, 4 and
6] which are operated by EUTELSAT - mainly TV and data transmissions -
nothing to do with EUMETSAT.

So, basically, the data is being generated by EUMETSAT's meteorological
satellites but all their data is now being disseminated via the EUMETCast service
via commercial satellites - EUTELSAT'S Hot Bird 6 at 13 deg. E in the
Ku-band and Atlantic Bird-3 at 5 Deg. W in C-band.

Regards,
John Tellick.
GEO.


Re: archives

laurentgers <l.deblangy@...>
 

--- In MSG-1@yahoogroups.com, "Kornel Kollath" <kollath.k@...> wrote:


Hello,

The access for archive is free! (but not for the last 24h data)
I use the "download via http" possibility...
I use the MSG level1.5 Native format. You can visualize it with a
Nativereader program which is also free.

Regards
Kornel

--- In MSG-1@yahoogroups.com, Robert Moore <rsmoore@> wrote:

May I check with colleagues who have used the EUMETSAT data
archive:
is it
the case that this is _only_ a paid-for service for which one
selects and
orders on line for CD or FTP delivery? In other words there is no
direct
download even for registered users?

Robert




44 (0) 1352 714456
Good afternoon Kornel,

Is it possible to give me the link for Nativereader program ?

Thank you very much

Laurent ( France, near Toulouse )


Re: archives

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

Robert Moore wrote:
May I check with colleagues who have used the EUMETSAT data archive:
is it the case that this is _only_ a paid-for service for which one
selects and orders on line for CD or FTP delivery? In other words
there is no direct download even for registered users?

Robert
Robert,

Ton Lindemann uses the EUMETSAT Archive facility, and has provided some notes for users here:

http://www.david-taylor.myby.co.uk/software/geosatsignal.htm#EUMETSATarchive

I have ensured that GeoSatSignal can work with the EUMETSAT Archive data, and written a small helper program called GSSprepare which you may have if you need it.

Cheers,
David
--
SatSignal software - quality software written to your requirements
Web: http://www.satsignal.net
Email: davidtaylor@writeme.com



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Re: archives

Robert Moore
 

Thanks Komel
Robert

--On 04 May 2006 11:21 +0000 Kornel Kollath <kollath.k@met.hu> wrote:


Hello,

The access for archive is free! (but not for the last 24h data)
I use the "download via http" possibility...
I use the MSG level1.5 Native format. You can visualize it with a
Nativereader program which is also free.

Regards
Kornel

--- In MSG-1@yahoogroups.com, Robert Moore <rsmoore@...> wrote:

May I check with colleagues who have used the EUMETSAT data archive:
is it
the case that this is _only_ a paid-for service for which one
selects and
orders on line for CD or FTP delivery? In other words there is no
direct
download even for registered users?

Robert




44 (0) 1352 714456






Unsure what a term means? Check the Glossary at:
http://www.david-taylor.myby.co.uk/wxsat/glossary.htm






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Re: archives

Kornel Kollath <kollath.k@...>
 

Hello,

The access for archive is free! (but not for the last 24h data)
I use the "download via http" possibility...
I use the MSG level1.5 Native format. You can visualize it with a
Nativereader program which is also free.

Regards
Kornel

--- In MSG-1@yahoogroups.com, Robert Moore <rsmoore@...> wrote:

May I check with colleagues who have used the EUMETSAT data archive:
is it
the case that this is _only_ a paid-for service for which one
selects and
orders on line for CD or FTP delivery? In other words there is no
direct
download even for registered users?

Robert




44 (0) 1352 714456


Re: re to Tony Baldwin

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

skypecallme wrote:
thanks tony balwin for answering me i wann ask you pls

for the frequency 10.854 GHz on wich satellite on 13east or 0east and
what is the symbol rate and polarization pls ?

in wich position MSG braodcasts the channel on 0 degeast or hotbird ?
what is the frequency pol sym rate in wich they re nraodcast on
hotbird and is it a tv channel or a dvbdata channel ?

for the tv channels i know my freind there are a lot of channels on
hotbird :) but i was asking if there is a EUMETCast tv channel on
hotbird or 0 east or a msc related tv channel

and you didn't give me the link my freind for the software needed
thank you very much for answering me :)
Please re-read the answers given to your questions. You will find:

There are no user broadcasts from MSG-1 at 3.4W

HotBird 6 - 13 East, 10853MHz, 27500kS/s FEC 3/4 horizontal
It is a data channel.

The TelliCast software is available from EUMETSAT:

For further information, please contact the EUMETSAT User Services Helpdesk
Tel: +49 6151 807 366
Fax: +49 6151 807 379
Email: ops@eumetsat.int
www.eumetsat.int

David
--
SatSignal software - quality software written to your requirements
Web: http://www.satsignal.net
Email: davidtaylor@writeme.com





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Re: re to Tony Baldwin

a_van_belle
 

Take a look at the Eumetsat Site:

http://www.eumetsat.int/idcplg?IdcService=SS_GET_PAGE&;nodeId=509&l=en

Greetings,
Arne van Belle

--- In MSG-1@yahoogroups.com, "skypecallme" <skypecallme@...> wrote:

thanks tony balwin for answering me i wann ask you pls

for the frequency 10.854 GHz on wich satellite on 13east or 0east and
what is the symbol rate and polarization pls ?

in wich position MSG braodcasts the channel on 0 degeast or hotbird ?
what is the frequency pol sym rate in wich they re nraodcast on
hotbird and is it a tv channel or a dvbdata channel ?

for the tv channels i know my freind there are a lot of channels on
hotbird :) but i was asking if there is a EUMETCast tv channel on
hotbird or 0 east or a msc related tv channel

and you didn't give me the link my freind for the software needed
thank you very much for answering me :)


re to Tony Baldwin

skypecallme <skypecallme@...>
 

thanks tony balwin for answering me i wann ask you pls

for the frequency 10.854 GHz on wich satellite on 13east or 0east and
what is the symbol rate and polarization pls ?

in wich position MSG braodcasts the channel on 0 degeast or hotbird ?
what is the frequency pol sym rate in wich they re nraodcast on
hotbird and is it a tv channel or a dvbdata channel ?

for the tv channels i know my freind there are a lot of channels on
hotbird :) but i was asking if there is a EUMETCast tv channel on
hotbird or 0 east or a msc related tv channel

and you didn't give me the link my freind for the software needed
thank you very much for answering me :)


archives

Robert Moore
 

May I check with colleagues who have used the EUMETSAT data archive: is it the case that this is _only_ a paid-for service for which one selects and orders on line for CD or FTP delivery? In other words there is no direct download even for registered users?

Robert




44 (0) 1352 714456