Browsing by Author "Cullen, J. J."
Now showing items 1-6 of 6
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Biological processes and optical measurements near the sea surface: Some issues relevant to remote sensing
Cullen, J. J.; Lewis, M. R. (1995)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 ... -
Calculation of UV attenuation and colored dissolved organic matter absorption spectra from measurements of ocean color
Johannessen, S. C.; Miller, W. L.; Cullen, J. J. (American Geophysical Union, Washington, DC, 2003-09)No abstract available. -
New production in the warm waters of the Tropical Pacific Ocean
Pena, MA; Lewis, M. R.; Cullen, J. J. (1994)The average depth-integrated rate of new production in the tropical Pacific Ocean was estimated from a calculation of horizontal and vertical nitrate balance over the region enclosed by the climatological 26 degree C ... -
Optical detection and assessment of algal blooms
Cullen, J. J.; Ciotti, A. M.; Davis, R. F.; Lewis, M. R. (1997-07)Concerns about harmful algal blooms (HABs) have grown in recent years. There is a pressing need for robust, quantitative, and cost-effective methods to detect and characterize algal blooms. Critical applications of these ... -
Photosynthetic characteristics and estimated growth rates indicate grazing is the proximate control of primary production in the Equatorial Pacific
Cullen, J. J.; Lewis, M. R.; Davis, C. O.; Barber, R. T. (1992)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 ... -
Relationships between vertical mixing and photoadaptation of phytoplankton: Similarity criteria
Lewis, M. R.; Cullen, J. J.; Platt, T. (1984-03)In their natural environment phytoplankton are exposed to fluctuations in incident irradiance due to vertical displacements in the water column induced by turbulent fluid motion. A reaction-diffusion model is analyzed to ...