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Old September 7th 04, 07:54 PM posted to uk.sci.weather
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Default Today's MODIS image

This was taken about 11.25Z today and shows largely clear skies. The
remaining cloud was still evaporating. I've brightened it quite a bit to
show the different colours of the land and nearby shallow seas.

http://www.mtullett.plus.com/satelli...07-09-2004.jpg

It is about 600KB in size - ~2 minutes on a 56k modem

The light colours in the east intrigue me. Would I be correct in assuming
this was the result of light coloured crops (cereals) rather than a sign of
dry soil?

"Image courtesy of MODIS Rapid Response Project at NASA/GSFC"

--
Mike 55.13°N 6.69°W Coleraine posted to uk.sci.weather 07/09/2004 18:54:22 UTC

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Old September 7th 04, 10:14 PM posted to uk.sci.weather
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Default Today's MODIS image

On Tue, 7 Sep 2004 19:54:22 +0100, Mike Tullett wrote:

This was taken about 11.25Z today and shows largely clear skies.


Lovely image Mike, what resolution is that one? It prompted me to go a
drag down the full 250m/pixel version (7.2Meg).

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Cheers
Dave. pam is missing e-mail



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Old September 7th 04, 10:41 PM posted to uk.sci.weather
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Default Today's MODIS image

On Tue, 07 Sep 2004 22:14:54 +0100 (BST), Dave Liquorice wrote in
ill.com

This was taken about 11.25Z today and shows largely clear skies.


Lovely image Mike, what resolution is that one? It prompted me to go a
drag down the full 250m/pixel version (7.2Meg).


That was the 500m resolution, Dave - the full uncropped image was about 1.5
MB.

--
Mike 55.13°N 6.69°W Coleraine posted to uk.sci.weather 07/09/2004 21:41:19 UTC
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Old September 7th 04, 10:54 PM posted to uk.sci.weather
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Default Today's MODIS image


"Mike Tullett" wrote in message
...
This was taken about 11.25Z today and shows largely clear skies. The
remaining cloud was still evaporating. I've brightened it quite a bit to
show the different colours of the land and nearby shallow seas.

http://www.mtullett.plus.com/satelli...07-09-2004.jpg

It is about 600KB in size - ~2 minutes on a 56k modem

The light colours in the east intrigue me. Would I be correct in assuming
this was the result of light coloured crops (cereals) rather than a sign

of
dry soil?


I'm curious too about the red splotches west of the Humber. Anyone got any
ideas?

--
Rob Overfield
Hull; 3m ASL
http://www.astrosport02.karoo.net/YorkshireWeather/


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Old September 7th 04, 11:09 PM posted to uk.sci.weather
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Default Today's MODIS image

On Tue, 7 Sep 2004 22:54:06 +0100, Rob Overfield wrote in


http://www.mtullett.plus.com/satelli...07-09-2004.jpg

It is about 600KB in size - ~2 minutes on a 56k modem

The light colours in the east intrigue me. Would I be correct in assuming
this was the result of light coloured crops (cereals) rather than a sign

of
dry soil?


I'm curious too about the red splotches west of the Humber. Anyone got any
ideas?


Hi Rob - they are meant to represent a hot spot and have been added
artificially. Here is what the website says:

"The red boxes indicate the location of a thermal anomaly that was detected
by MODIS using data from the middle infrared and thermal infrared bands. In
most cases, this thermal anomaly is a fire, but sometimes it is a volcanic
eruption, or even the flare from a gas well. We have no way of knowing
which it is based on the MODIS data alone. In areas of known volcanic
activity, we can verify an eruption using published reports of volcanic
activity worldwide. The red outlines don't represent the actual size of the
fire. They indicate the perimeter of 1km-resolution pixels containing the
thermal anomaly detected by MODIS"

From

http://rapidfire.sci.gsfc.nasa.gov/faq/faq.cgi#02

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Mike 55.13°N 6.69°W Coleraine posted to uk.sci.weather 07/09/2004 22:09:44 UTC


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Old September 7th 04, 11:12 PM posted to uk.sci.weather
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Default Today's MODIS image


"Mike Tullett" wrote in message
...
On Tue, 7 Sep 2004 22:54:06 +0100, Rob Overfield wrote in


http://www.mtullett.plus.com/satelli...07-09-2004.jpg

It is about 600KB in size - ~2 minutes on a 56k modem

The light colours in the east intrigue me. Would I be correct in

assuming
this was the result of light coloured crops (cereals) rather than a

sign
of
dry soil?


I'm curious too about the red splotches west of the Humber. Anyone got

any
ideas?


Hi Rob - they are meant to represent a hot spot and have been added
artificially. Here is what the website says:

"The red boxes indicate the location of a thermal anomaly that was

detected
by MODIS using data from the middle infrared and thermal infrared bands.

In
most cases, this thermal anomaly is a fire, but sometimes it is a volcanic
eruption, or even the flare from a gas well. We have no way of knowing
which it is based on the MODIS data alone. In areas of known volcanic
activity, we can verify an eruption using published reports of volcanic
activity worldwide. The red outlines don't represent the actual size of

the
fire. They indicate the perimeter of 1km-resolution pixels containing the
thermal anomaly detected by MODIS"


In the case of the ones by the humber, they could be fires then cos I can't
see it being volcanic, and I'm not aware of any gas flares there.

Hmmm, thanks Mike, much appreciated.

--
Rob Overfield
Hull; 3m ASL
http://www.astrosport02.karoo.net/YorkshireWeather/


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Old September 8th 04, 02:15 AM posted to uk.sci.weather
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Default Today's MODIS image


"Mike Tullett" wrote in message

The light colours in the east intrigue me. Would I be correct in assuming
this was the result of light coloured crops (cereals) rather than a sign

of
dry soil?


The are still a few fields in East Anglia with standing wheat, but the brown
colour is probably mainly due to newly ploughed soil ready for drilling (or
has just been drilled with next years crop)

MODIS images are superb, but can anyone offer some tips how to find the
right image quickly from such an enormous chaotic data base? Yes I know
about MODIS and AQUA tracks, etc, but even with broadband, it takes quite a
bit of searching.

Jack


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Old September 8th 04, 06:10 AM posted to uk.sci.weather
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Default Today's MODIS image


"Jack Harrison" wrote in message
...
MODIS images are superb, but can anyone offer some tips how to find the
right image quickly from such an enormous chaotic data base? Yes I know
about MODIS and AQUA tracks, etc, but even with broadband, it takes quite

a
bit of searching.


I was also going to ask, how often, i.e is it every other day ?, can you get
the UK image like Mike has today. When Ive gone to the site in the past, to
look at the UK, it appears squashed up at an angle in one of the images and
not worth expanding.

Phil


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Old September 8th 04, 07:39 AM posted to uk.sci.weather
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Default Today's MODIS image

On Wed, 8 Sep 2004 06:10:58 +0100, Phil Layton wrote in


"Jack Harrison" wrote in message
...
MODIS images are superb, but can anyone offer some tips how to find the
right image quickly from such an enormous chaotic data base? Yes I know
about MODIS and AQUA tracks, etc, but even with broadband, it takes quite
a bit of searching.


I don't think there is a quick way. That morning pass by TERRA is around
the same time each day and the same with the lunchtime AQUA pass. On the
Terra images I look for NW Africa in the thumbnails and then move two up
from that one.

I was also going to ask, how often, i.e is it every other day ?, can you get
the UK image like Mike has today. When Ive gone to the site in the past, to
look at the UK, it appears squashed up at an angle in one of the images and
not worth expanding.


It is quite rare for the British Isles to be in the middle of the pass as
it was in this one. Usually we are chopped in half, or at the edge of the
image with all the associated distortions. It just so happened the pass
was perfect yesterday as well as at a time of clear skies.

--
Mike 55.13°N 6.69°W Coleraine posted to uk.sci.weather 08/09/2004 06:39:00 UTC
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Old September 8th 04, 08:40 AM posted to uk.sci.weather
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Default Today's MODIS image

On Wed, 8 Sep 2004 07:39:00 +0100, Mike Tullett wrote in


I was also going to ask, how often, i.e is it every other day ?, can you get
the UK image like Mike has today. When Ive gone to the site in the past, to
look at the UK, it appears squashed up at an angle in one of the images and
not worth expanding.


It is quite rare for the British Isles to be in the middle of the pass as
it was in this one. Usually we are chopped in half, or at the edge of the
image with all the associated distortions. It just so happened the pass
was perfect yesterday as well as at a time of clear skies.


I've now put up the 13.10Z Aqua image. The pass was from a different
direction but we are very close to the middle in an east-west sense.

http://www.mtullett.plus.com/satelli...07-09-2004.jpg

--
Mike 55.13°N 6.69°W Coleraine posted to uk.sci.weather 08/09/2004 07:40:30 UTC


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