Date   

Re: Heavy rain and loss of EUMETCast signal expected

James Brown
 

In message <A071CB1B64AB45FB83A758594E3C0280@eumetsystem>, Hans-Joachim Empel <hajoempel@t-online.de> writes
Hello James ,
sometimes i have the same problem with the loss of the satellite signal.
Specially if there are heavy rainshowers during thunderstorms.

I am in the northern part of Germany and i am using a dish with 1,5m diameter , but during heavy rain the
signal to the satellite brakes also down.

Greetings
Joachim Empel ( DL2388RB )
Interesting Joachim,

I used to have a 1.8m dish for Meteosat WEFAX and PDUS at much lower ERP and don't remember so many problems in that was it S-band? So the increase to Ku I suppose is the downlink issue.

OT but BTW I had a fascinating fsy experience yesterday (and today) - the wife power-washed the patio and frequently stood in front of the dish. For the first time I saw DECREASES in the 0.fsy which wasn't my intervention.

http://www.meteosat.co.uk/mrtg/satellite-fsy.html

(It's the 18:30 & 13:15 dip approx)

Cheers

James
--
James Brown


Re: Heavy rain and loss of EUMETCast signal expected

James Brown
 

Interesting Arne,

I had thought that a big dish might have been able to punch through, but perhaps with a very narrow beam the losses in heavy precipitation become too great with the amount of data. I have a feeling John Tellick may be along shortly with the statistics!

Now a RAID system would be 'interesting' if a little impractical possibly!

Cheers

James

In message <huvhvc+8eel@eGroups.com>, a_van_belle <a.van.belle@hccnet.nl> writes

Hello James,

I am not sure a bigger uplink dish would help under these conditions.
The rain attenuation on Ku band can be so high that upping the power may only shorten the loss of signal a bit.
That is why they still use 4 GHz in regions where "tropic downpours" occur frequently.
A second up-link station on a different location could help if running synchronized "in parallel".

Let us hope that these severe rain showers will be rare. Eastern Europe (Poland especially) has had enough rain for a year now !

Greetings,
Arne van Belle
--
James Brown


Re: Heavy rain and loss of EUMETCast signal expected

Hans-Joachim Empel
 

Hello James ,
sometimes i have the same problem with the loss of the satellite signal.
Specially if there are heavy rainshowers during thunderstorms.

I am in the northern part of Germany and i am using a dish with 1,5m diameter , but during heavy rain the
signal to the satellite brakes also down.

Greetings
Joachim Empel ( DL2388RB )

----- Original Message -----
From: a_van_belle
To: MSG-1@yahoogroups.com
Sent: Saturday, June 12, 2010 10:54 AM
Subject: [MSG-1] Re: Heavy rain and loss of EUMETCast signal expected



Hello James,

I am not sure a bigger uplink dish would help under these conditions.
The rain attenuation on Ku band can be so high that upping the power may only shorten the loss of signal a bit.
That is why they still use 4 GHz in regions where "tropic downpours" occur frequently.
A second up-link station on a different location could help if running synchronized "in parallel".

Let us hope that these severe rain showers will be rare. Eastern Europe (Poland especially) has had enough rain for a year now !

Greetings,
Arne van Belle


--- In MSG-1@yahoogroups.com, James Brown <satellite@...> wrote:
>
> In message <hurogu+haeg@...>, a_van_belle
> <a.van.belle@...> writes
> >Sorry for the bad news but heavy rain showers are again predicted for
> >Usingen this evening/early night !
>
> Thanks Arne for the bad news!
>
> I wonder if they could invest in a bigger dish?
>
> Cheers
>
> James
> --
> James Brown
>


Re: Heavy rain and loss of EUMETCast signal expected

a_van_belle
 

Hello James,

I am not sure a bigger uplink dish would help under these conditions.
The rain attenuation on Ku band can be so high that upping the power may only shorten the loss of signal a bit.
That is why they still use 4 GHz in regions where "tropic downpours" occur frequently.
A second up-link station on a different location could help if running synchronized "in parallel".

Let us hope that these severe rain showers will be rare. Eastern Europe (Poland especially) has had enough rain for a year now !

Greetings,
Arne van Belle

--- In MSG-1@yahoogroups.com, James Brown <satellite@...> wrote:

In message <hurogu+haeg@...>, a_van_belle
<a.van.belle@...> writes
Sorry for the bad news but heavy rain showers are again predicted for
Usingen this evening/early night !
Thanks Arne for the bad news!

I wonder if they could invest in a bigger dish?

Cheers

James
--
James Brown


Re: recv-channel.ini" setup

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

Hi This is going to be a long one so get a cup of tea,I have just had to reinstall all software from scratch as David will know all about. I have everything running including ramdisk and all seems well but i need to overwrite the recv-channel.ini" file to put in only the data i need to recieve. I cant remember how to go about this as it has been 3 years since i needed to touch it . I dont know what to edit ect . i am at this moment recieving msg data also avhrr and metop only. I could do with a screen shot or some help if you would . i apreciate all your advice Thanks Duncan..
Duncan,

There are some hints here:

http://www.satsignal.eu/software/msg_dm_pc.htm#FileLocations

Cheers,
David
--
SatSignal software - quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-taylor@blueyonder.co.uk


recv-channel.ini" setup

sueandunc <duncan.edwards3@...>
 

Hi This is going to be a long one so get a cup of tea,I have just had to reinstall all software from scratch as David will know all about. I have everything running including ramdisk and all seems well but i need to overwrite the recv-channel.ini" file to put in only the data i need to recieve. I cant remember how to go about this as it has been 3 years since i needed to touch it . I dont know what to edit ect . i am at this moment recieving msg data also avhrr and metop only. I could do with a screen shot or some help if you would . i apreciate all your advice Thanks Duncan..


Re: Heavy rain and loss of EUMETCast signal expected

James Brown
 

In message <hurogu+haeg@eGroups.com>, a_van_belle <a.van.belle@hccnet.nl> writes
Sorry for the bad news but heavy rain showers are again predicted for Usingen this evening/early night !
Thanks Arne for the bad news!

I wonder if they could invest in a bigger dish?

Cheers

James
--
James Brown


Re: Heavy rain and loss of EUMETCast signal expected

a_van_belle
 

Sorry for the bad news but heavy rain showers are again predicted for Usingen this evening/early night !

http://www.niederschlagsradar.de/h.aspx?regio=fri&;srt=bild&j=2010&m=06&d=11&uhr=00&mi=15

I have not compared with statistics from previous summers but could the increased severity /frequency of these rain fades be a result of Global Warming ?

Good night,
Arne van Belle

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

And right you were Arne. Shortly after your message the signal all but
disappeared.



From: MSG-1@yahoogroups.com [mailto:MSG-1@yahoogroups.com] On Behalf Of
a_van_belle
Sent: Wednesday, 09 June, 2010 20:33
To: MSG-1@yahoogroups.com
Subject: [MSG-1] Heavy rain and loss of EUMETCast signal expected





German Rain radar shows heavy rain approaching Usingen from the South.
http://www.niederschlagsradar.de/h.aspx?regio=fri
<http://www.niederschlagsradar.de/h.aspx?regio=fri&;srt=bild&j=2010&m=06&d=09
&uhr=22&mi=25> &srt=bild&j=2010&m=06&d=09&uhr=22&mi=25
(Note: Usingen is not mentioned on this map but it is about 10 miles
NorthEast of "Bad Homburg vor Der Hohe" )

This could cause interruption of the uplink.
In the Netherlands we had severe rain fades this week.

Greetings,
Arne van Belle







Re: Heavy rain and loss of EUMETCast signal expected

fvalk <fvalk@...>
 

And right you were Arne. Shortly after your message the signal all but
disappeared.



From: MSG-1@yahoogroups.com [mailto:MSG-1@yahoogroups.com] On Behalf Of
a_van_belle
Sent: Wednesday, 09 June, 2010 20:33
To: MSG-1@yahoogroups.com
Subject: [MSG-1] Heavy rain and loss of EUMETCast signal expected





German Rain radar shows heavy rain approaching Usingen from the South.
http://www.niederschlagsradar.de/h.aspx?regio=fri
<http://www.niederschlagsradar.de/h.aspx?regio=fri&;srt=bild&j=2010&m=06&d=09
&uhr=22&mi=25> &srt=bild&j=2010&m=06&d=09&uhr=22&mi=25
(Note: Usingen is not mentioned on this map but it is about 10 miles
NorthEast of "Bad Homburg vor Der Hohe" )

This could cause interruption of the uplink.
In the Netherlands we had severe rain fades this week.

Greetings,
Arne van Belle


Heavy rain and loss of EUMETCast signal expected

a_van_belle
 

German Rain radar shows heavy rain approaching Usingen from the South.
http://www.niederschlagsradar.de/h.aspx?regio=fri&;srt=bild&j=2010&m=06&d=09&uhr=22&mi=25
(Note: Usingen is not mentioned on this map but it is about 10 miles NorthEast of "Bad Homburg vor Der Hohe" )

This could cause interruption of the uplink.
In the Netherlands we had severe rain fades this week.

Greetings,
Arne van Belle


spot-4 images?

geertbalsma <geertbalsma@...>
 

Hello,

On the back cover of the new GEO magazine (26) displays an image from the SPOT-4 satelite.
Is it possible for weatheramateurs to recieve this kind of pictures?


regards

Geert
www.hetweerinboskamp.nl


Re: MODIS Iceland image query

nigel
 

On Mon, 7 Jun 2010 22:00:42 +0100
"Douglas Deans" <dsdeans@btinternet.com> wrote:



--------------------------------------------------
From: "James Brown" <satellite@meteosat.co.uk>
Sent: Monday, June 07, 2010 8:24 PM
To: <MSG-1@yahoogroups.com>
Subject: [MSG-1] MODIS Iceland image query

It's good to see the MODIS images coming in again.

I was looking at the latest one covering Iceland (very clear) and it
reminded me that for some times I have seen large areas appearing
much darker than the surroundings. I was just wondering if this
could still relate to a covering of ash from the volcanic eruption?
I wonder what others think - the wind direction did at times carry
the cloud further east and north.

Cheers

James
--
James Brown
James, if you see this image from the Iceland Met office it probably
answers your question !

http://en.vedur.is/earthquakes-and-volcanism/articles/nr/1884

Also see some of the images further down the scroll ..... a new
meaning to black ice !!


Regards
Douglas.
Thanks, Douglas, for that link - a most interesting site.
Regards
Nigel


Re: MODIS Iceland image query

James Brown
 

In message <D57ADE1E90FC497ABC4340CEFFF987F2@DouglasPC>, Douglas Deans <dsdeans@btinternet.com> writes

James, if you see this image from the Iceland Met office it probably answers
your question !

http://en.vedur.is/earthquakes-and-volcanism/articles/nr/1884

Also see some of the images further down the scroll ..... a new meaning to
black ice !!


Regards
Douglas.
Thanks Douglas,

I guess that is more or less a confirmation then. I monitor the earthquakes most days - the whole area seems susceptible to tremors of a 1-2 on their scale.

I'll see if I have any saved images from before to compare.

Cheers

James
--
James Brown


Re: MODIS Iceland image query

Douglas Deans
 

--------------------------------------------------
From: "James Brown" <satellite@meteosat.co.uk>
Sent: Monday, June 07, 2010 8:24 PM
To: <MSG-1@yahoogroups.com>
Subject: [MSG-1] MODIS Iceland image query

It's good to see the MODIS images coming in again.

I was looking at the latest one covering Iceland (very clear) and it
reminded me that for some times I have seen large areas appearing much
darker than the surroundings. I was just wondering if this could still
relate to a covering of ash from the volcanic eruption? I wonder what
others think - the wind direction did at times carry the cloud further
east and north.

Cheers

James
--
James Brown
James, if you see this image from the Iceland Met office it probably answers
your question !

http://en.vedur.is/earthquakes-and-volcanism/articles/nr/1884

Also see some of the images further down the scroll ..... a new meaning to
black ice !!


Regards
Douglas.


MODIS Iceland image query

James Brown
 

It's good to see the MODIS images coming in again.

I was looking at the latest one covering Iceland (very clear) and it reminded me that for some times I have seen large areas appearing much darker than the surroundings. I was just wondering if this could still relate to a covering of ash from the volcanic eruption? I wonder what others think - the wind direction did at times carry the cloud further east and north.

Cheers

James
--
James Brown


Re: Data Loss

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

I see there has been some data loss at approx. 9.10 / 9.15 UTC with losses
on Met-9 / RSS and AVHRR.

Regards
Ian.
Same here, Ian. No missed packets, though, so something higher up the chain. No notice of any work today, I believe.

Cheers,
David
--
SatSignal software - quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-taylor@blueyonder.co.uk


Re: Data Loss

James Brown
 

In message <C1823359ADEC47D38296CF97A18DB8FA@IanPC>, Ian Deans <iandeans142@btinternet.com> writes
I see there has been some data loss at approx. 9.10 / 9.15 UTC with losses
on Met-9 / RSS and AVHRR.

Regards
Ian.
Thanks for the confirmation Ian,

As it happens I was changing some settings when it occurred and I assumed it was my fault!

Cheers

James
--
James Brown


Data Loss

Ian Deans
 

I see there has been some data loss at approx. 9.10 / 9.15 UTC with losses on Met-9 / RSS and AVHRR.

Regards
Ian.


Re: Missing MODIS

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

James and others I note the following information from NOAA which may
explain the outage.

''ESPC is not receiving any MODIS, AIRS
and AMSR-E data. The NANUK server has crashed at
Goddard. The server will not be available until Monday morning.''

Regards
Douglas.
I saw that note, Douglas, but didn't connect it. Mind you, to me ESPC is the Edinburgh Solicitors Property Centre! Quite a time for a server to be out....

Seems we had our own incident around 16:00 with, I suspect, bad weather over Usingen causing a Europe-wide outage. I managed to get Windows updates done on my main PC just before the signal came back.

See:
http://www.satsignal.eu/mrtg/EumetcastEurope.html

Cheers,
David
--
SatSignal software - quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-taylor@blueyonder.co.uk


Re: Missing MODIS

James Brown
 

Douglas Deans <dsdeans@btinternet.com> writes
James and others I note the following information from NOAA which may
explain the outage.

''ESPC is not receiving any MODIS, AIRS
and AMSR-E data. The NANUK server has crashed at
Goddard. The server will not be available until Monday morning.''

Regards
Douglas.

There we have it then! Many thanks Douglas,

James
--
James Brown

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