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    Wyświetlanie 1-4 z 4
    Tytuł:
    The influence of biotic factors on phytoplankton pigment composition and resources in Baltic ecosystems: new analytical results
    Autorzy:
    Ston-Egiert, J.
    Lotocka, M.
    Ostrowska, M.
    Kosakowska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/48253.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    chlorophyll
    chlorophyll a
    concentration
    carotenoid
    photosynthetic carotenoid
    photoprotecting carotenoid
    pigment
    phytoplankton biomass
    Baltic Sea
    biotic factor
    Baltic ecosystem
    Źródło:
    Oceanologia; 2010, 52, 1; 101-125
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Distributions of photosynthetic and photoprotecting pigment concentrations in the water column in the Baltic Sea: an improved mathematical description
    Autorzy:
    Ston-Egiert, J.
    Majchrowski, R.
    Ostrowska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/48084.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    phytoplankton
    primary production
    chlorophyll b
    chlorophyll c
    carotenoid
    pigment concentration
    photoprotection
    water column
    Baltic Sea
    mathematical description
    Źródło:
    Oceanologia; 2019, 61, 1
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Remote sensing of vertical phytoplankton pigment distributions in the Baltic: new mathematical expressions. Part 1: Total chlorophyll a distribution
    Autorzy:
    Ostrowska, M.
    Majchrowski, R.
    Ston-Egiert, J.
    Wozniak, B.
    Ficek, D.
    Dera, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/47972.pdf
    Data publikacji:
    2007
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    remote sensing
    phytoplankton pigment
    chlorophyll a
    vertical distribution
    concentration
    Baltic Sea
    distribution
    Opis:
    This article is the first in a series of three describing the modelling of the vertical different photosynthetic and photoprotecting phytoplankton pigments concentration distributions in the Baltic and their interrelations described by the so-called non-photosynthetic pigment factor. The model formulas yielded by this research are an integral part of the algorithms used in the remote sensing of the Baltic ecosystem. Algorithms of this kind have already been developed by our team from data relating mainly to oceanic Case 1 waters (WC1) and have produced good results for these waters. But their application to Baltic waters, i.e., Case 2 waters, was not so successful. On the basis of empirical data for the Baltic Sea, we therefore derived new mathematical expressions for the spatial distribution of Baltic phytoplankton pigments. They are discussed in this series of articles. This first article presents a statistical model for determining the total concentration of chlorophyll a (i.e., the sum of chlorophylls a+pheo derived spectrophotometrically) at different depths in the Baltic Sea Ca(z) on the basis of its surface concentration Ca(0), which can be determined by remote sensing. This model accounts for the principal features of the vertical distributions of chlorophyll concentrations characteristic of the Baltic Sea. The model’s precision was verified empirically: it was found suitable for application in the efficient monitoring of the Baltic Sea. The modified mathematical descriptions of the concentrations of accessory pigments (photosynthetic and photoprotecting) in Baltic phytoplankton and selected relationships between them are given in the other two articles in this series (Majchrowski et al. 2007, Woźniak et al. 2007b, both in this volume).
    Źródło:
    Oceanologia; 2007, 49, 4
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Remote sensing of vertical phytoplankton pigment distributions in the Baltic: new mathematical expressions. Part 2: Accessory pigment distribution
    Autorzy:
    Majchrowski, R.
    Ston-Egiert, J.
    Ostrowska, M.
    Wozniak, B.
    Ficek, D.
    Lednicka, B.
    Dera, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/48281.pdf
    Data publikacji:
    2007
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    remote sensing
    accessory pigment concentration
    pigment distribution
    chlorophyll a
    phytoplankton pigment
    vertical distribution
    Baltic Sea
    marine ecosystem
    distribution
    Opis:
    This is the second in a series of articles, the aim of which is to derive mathematical expressions describing the vertical distributions of the concentrations of different groups of phytoplankton pigments; these expressions are necessary in the algorithms for the remote sensing of the marine ecosystem. It presents formulas for the vertical profiles of the following groups of accessory phytoplankton pigments: chlorophylls b, chlorophylls c, phycobilins, photosynthetic carotenoids and photoprotecting carotenoids, all for the uppermost layer of water in the Baltic Sea with an optical depth of τ ≈ 5. The mathematical expressions for the first four of these five groups of pigments, classified as photosynthetic pigments, enable their concentrations to be estimated at different optical depths in the sea from known surface concentrations of chlorophyll a. The precision of these estimates is characterised by the following relative statistical errors according to logarithmic statistics σ−: approximately 44% for chlorophyll b, approx. 39% for chlorophyll c, approx. 43% for phycobilins and approx. 45% for photosynthetic carotenoids. On the other hand, the mathematical expressions describing the vertical distributions of photoprotecting carotenoid concentrations enable these to be estimated at different depths in the sea also from known surface concentrations of chlorophyll a, but additionally from known values of the irradiance in the PAR spectral range at the sea surface, with a statistical error σ− of approximately 42%
    Źródło:
    Oceanologia; 2007, 49, 4
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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