| Characterization and Modeling of Inherent Optical Properties in the Gulf of Maine |
2002 |
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| Authors:
Heidi M. Sosik; Dennis J. McGillicuddy; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
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 | Our longterm goal is to contribute to a fundamental understanding of the sources of biological, physical and optical variability in coastal ocean systems. Particular focus is on applications useful for studying important ecological processes and the links between phytoplankton properties and physical processes in coastal regions. The overall objective of this project is to improve understanding of the Gulf of Maine and Georges Bank system through characterization and modeling of ... |
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| Response of Particulate Optical Properties to Coastal Mixing Processes |
16 DEC 2001 |
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| Authors:
Heidi M. Sosik; Robert J. Olson; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA DEPT OF BIOLOGY
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| Spatial and temporal variability in particulate and dissolved material is a major source of optical variability in the upper ocean. This research was designed to examine the interaction between physical processes and the properties, abundance, and optical importance of different particle types in coastal ocean waters. We have substantially refined individual particle measurement methods and developed new approaches to use individual particle results for interpretation of both inherent and apparent ... |
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| Comparison of Refractive Index Estimated from Single-Cell and Bulk Optical Properties |
24 AUG 2001 |
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| Authors:
Rebecca E. Green; Heidi M. Sosik; Michele P. DuRand; Robert J. Olson; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
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| Particle size and refractive index distributions are important determinants of bulk optical properties in the ocean. We have compared refractive indices of phytoplankton cultures estimated from individual particle and bulk optical measurements. For individual particles, size and refractive index were estimated from flow cytometric forward and side scattering measurements combined with Mie theory. Using an inverse method, bulk refractive index was estimated from cell concentration, measured size distributions, absorption, and ... |
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| Diel Variations in Optical Properties of Micromonas pusilla, A prasinophyte |
24 AUG 2001 |
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| Authors:
Michele D. DuRand; Rebecca E. Green; Heidi M. Sosik; Robert J. Olson; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
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| A laboratory experiment was conducted on cultures of Micromonas pusilla, a marine prasinophyte, to investigate how cell growth and division affect the optical properties over the light:dark cycle. Measurements were made of cell size and concentration, attenuation and absorption coefficients, flow cytometric light scattering (in forward and side directions), chlorophyll and carbon content. Refractive index was calculated using the anomalous diffraction approximation Cells were about 1.5 micrometers in diameter and ... |
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| Response of Particulate Optical Properties to Coastal Mixing Processes: Analysis and Interpretation of Particle Light Scattering as Measured by Flow Cytometry |
20 DEC 1999 |
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| Authors:
Heidi M. Sosik; Robert J. Olson; WOODS HOLE OCEANOGRAPHIC INST MA BIOLOGY DEPT
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| During the period of this AASERT award we successfully participated in the Coastal Mixing and Optics Research initiative with the award supporting training of Rebecca Green, a PhD candidate in the MIT/WHOI Joint Program in Oceanography and Oceanographic Engineering. Rebecca made substantial progress towards receiving her degree, participated in three program research cruises and made valuable contributions to our research objectives. These objectives included quantifying ... |
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| Response of Particulate Optical Properties to Coastal Mixing Processes |
OCT 1999 |
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| Authors:
Heidi M. Sosik; Robert J. Olson; WOODS HOLE OCEANOGRAPHIC INST MA BIOLOGY DEPT
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| Spatial and temporal variability in particulate and dissolved material is a major source of optical variability in the upper ocean. This research program is aimed at developing a better understanding of the relationships between upper ocean optical properties and particulate and dissolved seawater constituents, and to determine how physical processes influence these relationships. We are refining individual particle measurement methods and developing approaches ... |
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| Patterns and Scales of Variability in the Optical Properties of Georges Bank Waters, with Special Reference to Phytoplankton Biomass and Production |
OCT 1999 |
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| Authors:
Heidi M. Sosik; Robert J. Olson; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
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| The goal of this research program is to contribute to a fundamental understanding of the sources of optical variability in coastal ocean systems. This is being achieved through a field effort to make measurements of time series and spatial distributions of both apparent and inherent optical properties in the waters of Georges Bank and the Gulf of Maine. Optical properties are strongly affected by phytoplankton, ... |
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| Response of Particulate Optical Properties to Coastal Mixing Processes |
31 JAN 1999 |
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| Authors:
Heidi M. Sosik; Robert J. Olson; WOODS HOLE OCEANOGRAPHIC INST MA BIOLOGY DEPT
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| Our long-term goals are to develop a better understanding of the relationships between upper ocean optical properties and particulate and dissolved seawater constituents, and to determine how these relationships are influenced by physical processes. Specific long term objectives include both predicting and modeling optical variability relevant for biological processes, such as phytoplankton photosynthesis, and retrieval of information about the biomass and activity of plankton from optical measurements. |
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| Response of Particulate Optical Properties to Coastal Mixing Processes |
16 APR 98 |
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| Authors:
Heidi M. Sosik; Robert J. Olson; WOODS HOLE OCEANOGRAPHIC INST MA BIOLOGY DEPT
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| Our long term goals are to develop a better understanding of the relationships between upper ocean optical properties and particulate and dissolved seawater constituents, and to determine how these relationships are influenced by physical processes. Specific long term objectives include both predicting and modeling optical variability relevant for biological processes, such as phytoplankton photosynthesis, and retrieval of information about the biomass and activity of plankton from optical measurements. The approach ... |
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| Response of Particulate Optical Properties of Coastal Mixing Processes |
31 JAN 97 |
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| Authors:
Heidi M. Sosik; Robert J. Olson; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA DEPT OF BIOLOGY
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| Spatial and temporal variability in particulate and dissolved material is a significant source of optical variability in the upper ocean. The goal of this project is to examine the interaction between physical processes and the properties, abundance, and optical significance of different particle types in coastal ocean waters. Specific project objectives are to refine individual particle measurement methods and develop approaches to use individual particle results for interpretation of both ... |
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Reports by Author
