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Browsing by Author "Griffith, Derek J"

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Application of Sentinel 3 OLCI for chl-a retrieval over small inland water targets: Successes and challenges

Author: Kravitz, J ; Matthews, M ; Bernard, Stewart ; Griffith, Derek J Date: Feb 2020 Eutrophication and increasing prevalence of potentially toxic cyanobacterial blooms among global inland water bodies is becoming a major concern and requires direct attention. The European Space Agency recently launched the Ocean and Land ... Read more
Calibration of an in-water multi-excitation fluorometer for the measurement of phytoplankton chlorophyll-a fluorescence quantum yield

Author: Griffith, Derek J ; Bone, Emma L ; Thomalla, Sandy J ; Bernard, Stewart Date: Jul 2018 A multi-excitation fluorometer (MFL, JFE Advantech Co., Ltd.), originally designed to discriminate between phytoplankton species present within a population, has been redirected for use in fluorescence quantum yield (FQY) determination. While ... Read more
Determination of aerosol optical properties for retrieval of water-leaving radiance at Roodeplaat dam relating to calibration and validation of Sentinel 2 And 3

Author: Faniso, Zimbini ; Griffith, Derek J ; Matthews, M ; Kravits, J Date: Nov 2017 Remote sensing of inland water quality is challenging satellite Earth observation application. Inland water bodies are small, optically complex and dark targets compared to surrounding land. Signal reaching satellites is dominated by light ... Read more
Flight hardware verification and validation of the K-line fire sensor payload on ZACube-2

Author: Cogan, D ; Griffith, Derek J ; Magidimisha, Edwin ; Van Zyl, R Date: Oct 2018 With the launch of the ZACube-2 nanosatellite, a new technique of wildfire detection and monitoring from space will be evaluated. Potassium is an essential plant macronutrient and all vegetation biomass fires exhibit characteristic spectral ... Read more

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Browsing by Author "Griffith, Derek J"

Browsing by Author "Griffith, Derek J"

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