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PIGMENT ANALYSIS OF COASTAL WATERS

PIGMENT ANALYSIS OF COASTAL WATERS. IDENTIFICATION OF MAJOR PIGMENT GROUPS CONTRIBUTING TO THE WATER LEAVING RADIANCE STATISTICAL SEPARATION STRUCTURAL AND SPECTROSCOPIC IDENTIFICATION HIGH PERFORMANCE LIQUID CHROMATOGRAPHY GROUPING BY PLANKTON SPECIES (ChemTax)

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PIGMENT ANALYSIS OF COASTAL WATERS

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  1. PIGMENT ANALYSIS OF COASTAL WATERS IDENTIFICATION OF MAJOR PIGMENT GROUPS CONTRIBUTING TO THE WATER LEAVING RADIANCE • STATISTICAL SEPARATION • STRUCTURAL AND SPECTROSCOPIC IDENTIFICATION • HIGH PERFORMANCE LIQUID CHROMATOGRAPHY • GROUPING BY PLANKTON SPECIES (ChemTax) • EXTENSION OF STATISTICS TO LARGE AREA COVERAGE

  2. PECONIC RIVER TEST SITE NUTRIENT INJECTION

  3. HPLC: PIGMENT NOMENCLATURE (SeaBASS) Chl_c3 Chlorophyll c3 Chl_c2 Chlorophyll c2 Chl_c1c2 Chlorophyll c1 + chlorophyll c2 Perid Peridinin But-fuco 19’-Butanolyoxyfucoxanthin Fuco Fucoxanthin Hex-fuco 19’-Hexanoyloxyfucoxanthin Pras Prasinoxanthin Viola Violaxanthin Diadino Diadinoxanthin Allo Alloxanthin Diato Diatoxanthin Lut Lutein Zea Zeaxanthin Chl_b Chlorophyll b Chl_a Chlorophyll a Beta-epi-Car Alpha carotene Beta-beta-Car Beta carotene Tot_Chl_a Monovinyl chlorophyll a + Divinyl chlorophyll a + Chlorophilide a + Chlorophyll a allomer + Chlorophyll a epimer

  4. SPECTRAL RESEMBLANCE OF CAROTENOIDS More than one pigment can have the same absorption spectra, so retention time becomes important in discriminating between pigments. Alloxanthin…… λ max = 426, 454, 483 nm Diatoxanthin….. λ max = 427, 454, 482 nm Zeaxanthin……. λ max = 428, 455, 483 nm β-carotene…….. λ max = 433, 455, 482 nm

  5. PIGMENT IDENTIFICATION

  6. SATELLITE YEARLY MEAN 670/680 nm YEARLY HISTORICAL MEAN IN SITU SATELLITE PIGMENT ESTIMATES CONTOUR MAP σ CONTOUR MAP σ QUALITY CHECK COMPARISON WITH SHIPS RECALIBRATE CORRELATION/ CALIBRATION APPLY ALGORITHM TO SINGLE ORBITS CONTOUR MAPS WITH STANDARD DEVIATIONS

  7. MEAN ANNUAL SEA SURFACE TEMPERATURE

  8. MEAN ANNUAL CHLOROPHYLL (mg · m-3)

  9. BAND RATIO 678nm/667nm Day 284, 2001

  10. STRUCTURAL SIMILARITY OF PHOTOSYNTHETIC CAROTENOIDS -CAROTENE PERIDININ FUCOXANTHIN

  11. UPWARD RADIANCE OF DIFFERENT WATER TYPES

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