ENVISAT MAPS: PIC CAPTION
October 1st, 2004
BY KEITH NUTHALLTHE IMPACT of industry, transport and fires on atmospheric pollution has been made graphically clear by a set of global images from European Space Agency environmental satellite Envisat. The largest of its kind in the world, Envisat has produced a map of nitrogen dioxide (NO2) pollution, showing Britain as a hotspot for this lung damaging gas. The satellite wielded its onboard 'scanning imaging absorption spectrometer for atmospheric chartography' (SCIAMACHY) instrument to record the spectrum of sunlight shining through the atmosphere. These ...
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