Remote Sensing of Chlorophyll Fluorescence in the Ocean Using Imaging Spectrometry: Toward a Vertical Profile of Fluorescence
Abstract Chlorophyll fluorescence measurements provide valuable information on phytoplankton abundance and physiology. High spectral resolution measurements from the aircraft‐mounted Portable Remote Imaging SpectroMeter (PRISM) allow for a more robust and informative fluorescence measurement than pr...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-02-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2018GL081273 |
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| author | Z. K. Erickson C. Frankenberg D. R. Thompson A. F. Thompson M. Gierach |
| author_facet | Z. K. Erickson C. Frankenberg D. R. Thompson A. F. Thompson M. Gierach |
| author_sort | Z. K. Erickson |
| collection | DOAJ |
| description | Abstract Chlorophyll fluorescence measurements provide valuable information on phytoplankton abundance and physiology. High spectral resolution measurements from the aircraft‐mounted Portable Remote Imaging SpectroMeter (PRISM) allow for a more robust and informative fluorescence measurement than previous methods. An increase in radiation in the fluorescence wavelength range is approximated by a skew‐normal distribution. Positive skew suggests the influence of water attenuation and motivates the use of an inverse retrieval model to solve for the most likely vertical distribution of fluorescence quantum yield. This approach is tested with theoretical fluorescence profiles and applied to a PRISM flightline located in southern Drake Passage, Southern Ocean during austral summer. The resulting profiles suggest vertical structure in fluorescence quantum yield in the upper 10 m, which matches expectations from in situ studies. The framework developed in this paper can be applied to current and future satellite missions, providing more information on phytoplankton concentrations, vertical profiles, and physiology. |
| format | Article |
| id | doaj-art-7356a50bcbfd462190bb6ebbbbf4e0ac |
| institution | Kabale University |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2019-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-7356a50bcbfd462190bb6ebbbbf4e0ac2025-08-20T03:49:45ZengWileyGeophysical Research Letters0094-82761944-80072019-02-014631571157910.1029/2018GL081273Remote Sensing of Chlorophyll Fluorescence in the Ocean Using Imaging Spectrometry: Toward a Vertical Profile of FluorescenceZ. K. Erickson0C. Frankenberg1D. R. Thompson2A. F. Thompson3M. Gierach4Division of Geological and Planetary Sciences California Institute of Technology Pasadena CA USADivision of Geological and Planetary Sciences California Institute of Technology Pasadena CA USAJet Propulsion Laboratory California Institute of Technology Pasadena CA USADivision of Geological and Planetary Sciences California Institute of Technology Pasadena CA USAJet Propulsion Laboratory California Institute of Technology Pasadena CA USAAbstract Chlorophyll fluorescence measurements provide valuable information on phytoplankton abundance and physiology. High spectral resolution measurements from the aircraft‐mounted Portable Remote Imaging SpectroMeter (PRISM) allow for a more robust and informative fluorescence measurement than previous methods. An increase in radiation in the fluorescence wavelength range is approximated by a skew‐normal distribution. Positive skew suggests the influence of water attenuation and motivates the use of an inverse retrieval model to solve for the most likely vertical distribution of fluorescence quantum yield. This approach is tested with theoretical fluorescence profiles and applied to a PRISM flightline located in southern Drake Passage, Southern Ocean during austral summer. The resulting profiles suggest vertical structure in fluorescence quantum yield in the upper 10 m, which matches expectations from in situ studies. The framework developed in this paper can be applied to current and future satellite missions, providing more information on phytoplankton concentrations, vertical profiles, and physiology.https://doi.org/10.1029/2018GL081273remote sensingchlorophyll fluorescenceinverse modeling |
| spellingShingle | Z. K. Erickson C. Frankenberg D. R. Thompson A. F. Thompson M. Gierach Remote Sensing of Chlorophyll Fluorescence in the Ocean Using Imaging Spectrometry: Toward a Vertical Profile of Fluorescence Geophysical Research Letters remote sensing chlorophyll fluorescence inverse modeling |
| title | Remote Sensing of Chlorophyll Fluorescence in the Ocean Using Imaging Spectrometry: Toward a Vertical Profile of Fluorescence |
| title_full | Remote Sensing of Chlorophyll Fluorescence in the Ocean Using Imaging Spectrometry: Toward a Vertical Profile of Fluorescence |
| title_fullStr | Remote Sensing of Chlorophyll Fluorescence in the Ocean Using Imaging Spectrometry: Toward a Vertical Profile of Fluorescence |
| title_full_unstemmed | Remote Sensing of Chlorophyll Fluorescence in the Ocean Using Imaging Spectrometry: Toward a Vertical Profile of Fluorescence |
| title_short | Remote Sensing of Chlorophyll Fluorescence in the Ocean Using Imaging Spectrometry: Toward a Vertical Profile of Fluorescence |
| title_sort | remote sensing of chlorophyll fluorescence in the ocean using imaging spectrometry toward a vertical profile of fluorescence |
| topic | remote sensing chlorophyll fluorescence inverse modeling |
| url | https://doi.org/10.1029/2018GL081273 |
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