articleAtmospheric chemistry and physicsNov 5, 2010GOLD OA

Global evaluation of the Collection 5 MODIS dark-target aerosol products over land

RCR. C. LevyLAL. A. RemerRGR. G. KleidmanSMS. MattooCICharles Ichoku

Goddard Space Flight Center · Science Systems and Applications (United States)

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Abstract

Abstract. NASA's MODIS sensors have been observing the Earth from polar orbit, from Terra since early 2000 and from Aqua since mid 2002. We have applied a consistent retrieval and processing algorithm to both sensors to derive the Collection 5 (C005) dark-target aerosol products over land. Here, we validate the MODIS along-orbit Level 2 products by comparing to quality assured Level 2 AERONET sunphotometer measurements at over 300 sites. From 85 463 collocations, representing mutually cloud-free conditions, we find that >66% (one standard deviation) of MODIS-retrieved aerosol optical depth (AOD) values compare to AERONET-observed values within an expected error (EE) envelope of ±(0.05 + 15%), with high…

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Topics & keywords

Topics
Keywords
  • AERONET
  • Aerosol
  • Environmental science
  • Deep blue
  • Remote sensing
  • Spurious relationship
  • Meteorology
  • Angstrom exponent
UN Sustainable Development Goals
  • Life below water
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