Papers
2
Total Citations
98
H-Index
2
About
Dennis Clark is a leading figure in the vicarious calibration of spaceborne ocean-color sensors, with foundational contributions to aerosol retrieval and radiometric accuracy. His research centers on the precise calibration of multiangle and multispectral imagers—particularly MISR (Multiangle Imaging Spectroradiometer) and GLI (Global Imager)—to enable reliable low-light-level retrievals over dark water targets. Clark’s landmark 2005 paper on MISR calibration, cited 77 times, demonstrated how top-of-atmosphere reflectances as low as 0.01 in the near-infrared can be accurately characterized, directly enabling aerosol optical depth retrievals over ocean. His work on GLI vicarious calibration, leveraging Marine Optical Buoy (MOBY) data and aerosol optical properties, achieved 21 citations and established a robust ground-based methodology for validating satellite radiances. These contributions have been critical for climate and ocean-color studies, ensuring that sensors meet the stringent radiometric requirements needed to detect subtle aerosol and water-leaving signals. Clark’s efforts have advanced the global capacity to monitor marine ecosystems and aerosol transport from space, making him a key architect of modern vicarious calibration protocols.
Research Focus
Key Achievements
Top Papers
- 1
- 2Vicarious calibration of GLI by ground observation data21 citations · 2005