Browsing Oceanography Faculty Research, Publications and Presentations by Subject "Chlorophylls"

Now showing items 1-4 of 4

  • Biological processes and optical measurements near the sea surface: Some issues relevant to remote sensing 

    Cullen, J. J., and M. R. Lewis. 1995. "Biological processes and optical measurements near the sea surface: Some issues relevant to remote sensing." Journal of Geophysical Research.C.Oceans 100(C7): 13-13,266. DOI:10.1029/95JC00454
    There is good evidence that bio-optical relationships are altered near the surface: (1) the fluorescence yield from chlorophyll declines, leading to bias in the estimation of pigment from fluorometry; (2) the modeled ...

  • Inferred influence of nutrient availability on the relationship between Sun-induced chlorophyll fluorescence and incident irradiance in the Bering Sea 

    Schallenberg, Christina, Marlon R. Lewis, Dan E Kelley, and John J. Cullen. 2008. "Inferred influence of nutrient availability on the relationship between Sun-induced chlorophyll fluorescence and incident irradiance in the Bering Sea." Journal of Geophysical Research.C.Oceans 113(7). DOI:10.1029/2007JC004355
    This study examines variability in the relationship between Sun-induced chlorophyll fluorescence and incident solar irradiance as a potential diagnostic of the nutritional status of phytoplankton. The study site is the ...

  • Measurements of methyl chloride in the Northwest Atlantic 

    Tait, V. K., R. M. Moore, and R. Tokarczyk. 1994. "Measurements of methyl chloride in the Northwest Atlantic." Journal of Geophysical Research.C.Oceans 99(C4): 7821-7833. DOI:10.1029/93JC03582
    Methyl chloride was measured directly in seawater using a purge and trap system and gas chromatography with electron capture detection. The results indicate that surface waters of the northwest Atlantic are a source of ...

  • Photosynthetic characteristics and estimated growth rates indicate grazing is the proximate control of primary production in the Equatorial Pacific 

    Cullen, J. J., M. R. Lewis, C. O. Davis, and R. T. Barber. 1992. "Photosynthetic characteristics and estimated growth rates indicate grazing is the proximate control of primary production in the Equatorial Pacific." Journal of Geophysical Research.C.Oceans 97(C1): 639-654. DOI:10.1029/91JC01320
    Macronutrients persist in the surface layer of the equatorial Pacific Ocean because the production of phytoplankton is limited. Measurements of photosynthesis as a function of irradiance (P-I) provide information on the ...