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	<title>MODIS cloud mask &#8211; BIOENGINEER.ORG</title>
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		<title>The Color of the Zenith Sky Offers a Simple New Way to Tell Clouds from Clear Air</title>
		<link>https://bioengineer.org/the-color-of-the-zenith-sky-offers-a-simple-new-way-to-tell-clouds-from-clear-air/</link>
		
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		<pubDate>Wed, 14 Oct 2026 08:39:57 +0000</pubDate>
				<category><![CDATA[Technology]]></category>
		<category><![CDATA[aerosol optical thickness]]></category>
		<category><![CDATA[atmospheric remote sensing]]></category>
		<category><![CDATA[cloud screening]]></category>
		<category><![CDATA[direct normal irradiance]]></category>
		<category><![CDATA[Mie scattering]]></category>
		<category><![CDATA[MODIS cloud mask]]></category>
		<category><![CDATA[polar aerosols]]></category>
		<category><![CDATA[Rayleigh scattering]]></category>
		<category><![CDATA[sky radiometer]]></category>
		<category><![CDATA[SKYNET]]></category>
		<category><![CDATA[spectral slope]]></category>
		<category><![CDATA[zenith radiance]]></category>
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					<description><![CDATA[Researchers have shown that the spectral slope of zenith sky radiance measured by ground-based sky radiometers provides a simple, physically grounded way to distinguish clear from cloudy skies across environments from polluted cities to the poles.]]></description>
		
		
		
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