Deep Sea Research Part I: Oceanographic Research Papers
Short-term variability of the underwater light field in the oligotrophic ocean in response to surface waves and clouds
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Effects of arborescent octocoral assemblages on the understory benthic communities of shallow Caribbean reefs
2023, Journal of Experimental Marine Biology and EcologyOcean-color radiometry across the Southern Atlantic and Southeastern Pacific: Accuracy and remote sensing implications
2014, Remote Sensing of EnvironmentCitation Excerpt :Nevertheless, there are also some important issues related to the variability of the submersed light field and extrapolation procedures. Besides the vertical stratification of the bio-optical properties, the underwater light field can be affected by diverse sources of noise, which include: focus and defocusing effects of the downwelling solar rays (Gernez & Antoine, 2009; Mueller et al., 2003; Zibordi et al., 2009), effects of wave motion (Stramska & Dickey, 1998), bubble clouds (Flatau, Piskozub, & Zaneveld, 1999; Piskozub et al., 2009; Stramski & Tegowski, 2001), and illumination variation during the cast (Mueller et al., 2003). Hence, this approach may also provide Rrs with high uncertainty levels if the above issues are not properly addressed.
Simulation of in situ visible radiometric measurements
2014, Experimental Methods in the Physical SciencesCitation Excerpt :Variations of water displacement due to sea-surface waves can partially affect the light distribution in the red and near-infrared due to the large attenuation coefficient at these wavelengths [109]. Different from the lensing effect, these fluctuations are directly related to the most energetic part of the sea-surface wave spectrum [127]. It is furthermore noted that variations of the amount of scattered light can produce fluctuations also in the upward irradiance and upwelling radiance, although these radiometric quantities are much less affected by lensing effects than the downward irradiance.
Temporal variability of incidental solar radiation and modulating factors in a coastal upwelling area (36°S)
2012, Progress in OceanographyCitation Excerpt :Together, these processes shape the mesoscale pelagic and benthic biological realms. The irradiance reaching the coastal ocean surface at any given time (i.e. on an annual or seasonal scale) depends on astronomic, atmospheric, and geographic factors (Seidlitz et al., 2001; McKenzie et al., 2003), and its penetration in the water column is related to stratification and bio-optical conditions (Stramska and Dickey, 1998; Neale et al., 2003; Montecino et al., 2004). Four variables are then strongly related to surface irradiance variability: zenith angle, atmospheric ozone and other gas concentrations, and cloud cover (Cabrera et al., 1995; Lovengreen et al., 2000; Häder et al., 2007).