"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/