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    Wyświetlanie 1-6 z 6
    Tytuł:
    Modelling the light absorption properties of particulate matter forming organic particles suspended in seawater. Part 2. Modelling results
    Autorzy:
    Wozniak, B.
    Wozniak, S.B.
    Tyszka, K.
    Ostrowska, M.
    Majchrowski, R.
    Ficek, D.
    Dera, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/47522.pdf
    Data publikacji:
    2005
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    light absorption coefficient
    sea water
    particulate organic matter
    particulate matter
    organic substance
    Źródło:
    Oceanologia; 2005, 47, 4
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling the light absorption properties of particulate matter forming organic particles suspended in sea water. Part 3. Practical applications
    Autorzy:
    Wozniak, B.
    Wozniak, S.B.
    Tyszka, K.
    Ostrowska, M.
    Ficek, D.
    Majchrowski, R.
    Dera, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/47909.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    marine environment
    absorption coefficient
    light index
    sea water
    particulate organic matter
    modelling
    light absorption
    Źródło:
    Oceanologia; 2006, 48, 4
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Model of the in vivo spectral absorption of algal pigments. Part 1. Mathematical apparatus
    Autorzy:
    Wozniak, B.
    Dera, J.
    Ficek, D.
    Majchrowski, R.
    Kaczmarek, S.
    Ostrowska, M.
    Koblentz-Mishke, O.I.
    Powiązania:
    https://bibliotekanauki.pl/articles/48333.pdf
    Data publikacji:
    2000
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    chlorophyll a
    bio-optical modelling
    photosynthetic pigment
    photoacclimation
    sea water
    algal pigment
    in vivo
    phytoplankton
    mathematical apparatus
    chromatic acclimation
    light absorption
    Opis:
    Existing statistical models of in vivo light absorption by phytoplankton (Woźniak & Ostrowska 1990, Bricaud et al. 1995, 1998) describe the dependence of the phytoplankton specific spectral absorption coefficient a∗ pl(λ) on the chlorophyll a concentration Ca in seawater. However, the models do not take into account the variability in this relationship due to phytoplankton acclimation. The observed variability in the light absorption coefficient and its components due to various pigments with depth and geographical position at sea, requires further accurate modelling in order to improve satellite remote sensing algorithms and interpretation of ocean colour maps. The aim of this paper is to formulate an improved model of the phytoplankton spectral absorption capacity which takes account of the pigment composition and absorption changes resulting from photo- and chromatic acclimation processes, and the pigment package effect. It is a synthesis of earlier models and the following statistical generalisations: (1) statistical relationships between various pigment group concentrations and light field properties in the sea (described by Majchrowski & Ostrowska 2000, this volume); (2) a model of light absorption by phytoplankton capable of determining the mathematical relationships between the spectral absorption coefficients of the various photosynthetic and photoprotecting pigment groups, and their concentrations in seawater (Woźniak et al. 1999); (3) bio-optical models of light propagation in oceanic Case 1 Waters and Baltic Case 2 Waters (Woźniak et al. 1992a, b, 1995a,b). The generalised model described in this paper permits the total phytoplankton light absorption coefficient in vivo as well as its components related to the various photosynthetic and photoprotecting pigments to be determined using only the surface irradiance PAR(0+) surface chlorophyll concentration Ca(0) and depth z in the sea as input data.
    Źródło:
    Oceanologia; 2000, 42, 2
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A more accurate formula for calculating the net longwave radiation flux in the Baltic Sea
    Autorzy:
    Zapadka, T.
    Wozniak, B.
    Dera, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/47558.pdf
    Data publikacji:
    2007
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    temperature
    cloud
    radiation flux
    water vapour
    atmosphere
    long-wave radiation
    sea surface
    Baltic Sea
    Źródło:
    Oceanologia; 2007, 49, 4
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    SatBałtyk – A Baltic environmental satellite remote sensing system – an ongoing project in Poland. Part 1: Assumptions, scope and operating range
    Autorzy:
    Wozniak, B.
    Bradtke, K.
    Darecki, M.
    Dera, J.
    Dudzinska-Nowak, J.
    Dzierzbicka-Glowacka, L.
    Ficek, D.
    Furmanczyk, K.
    Kowalewski, M.
    Krezel, A.
    Majchrowski, R.
    Ostrowska, M.
    Paszkuta, M.
    Ston-Egiert, J.
    Stramska, M.
    Zapadka, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/48960.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    algal bloom
    Baltic ecosystem
    Baltic Sea
    Baltic water
    chlorophyll a
    functional property
    marine optics
    organic matter
    phytoplankton pigment
    Polska
    remote sensing
    SatBaltyk project
    satellite monitoring
    solar radiation
    structural property
    Opis:
    This article is the first of two papers on the remote sensing methods of monitoring the Baltic ecosystem, developed by a Polish team. The main aim of the five- year SatBałtyk (2010–2014) research project (Satellite Monitoring of the Baltic Sea Environment) is to prepare the technical infrastructure and set in motion operational procedures for the satellite monitoring of the Baltic environment. This system is to characterize on a routine basis the structural and functional properties of this sea on the basis of data supplied by the relevant satellites. The characterization and large-scale dissemination of the following properties of the Baltic is anticipated: the solar radiation influx to the sea’s waters in various spectral intervals, energy balances of the short- and long-wave radiation at the Baltic Sea surface and in the upper layers of the atmosphere over the Baltic, sea surface temperature distribution, dynamic states of the water surface, concentrations of chlorophyll a and other phytoplankton pigments in the Baltic water, distributions of algal blooms, the occurrence of upwelling events, and the characteristics of primary organic matter production and photosynthetically released oxygen in the water. It is also intended to develop and, where feasible, to implement satellite techniques for detecting slicks of petroleum derivatives and other compounds, evaluating the state of the sea’s ice cover, and forecasting the hazards from current and future storms and providing evidence of their effects in the Baltic coastal zone. The ultimate objective of the project is to implement an operational system for the routine determination and dissemination on the Internet of the above-mentioned features of the Baltic in the form of distribution maps as well as plots, tables and descriptions characterizing the state of the various elements of the Baltic environment. The main sources of input data for this system will be the results of systematic recording by environmental satellites and also special-purpose ones such as TIROS N/NOAA, MSG (currently Meteosat 9), EOS/AQUA and ENVISAT. The final effects of the SatBałtyk project are to be achieved by the end of 2014, i.e. during a period of 60 months. These two papers present the results obtained during the first 15 months of the project. Part 1 of this series of articles contains the assumptions, objectives and a description of the most important stages in the history of our research, which constitute the foundation of the current project. It also discusses the way in which SatBałtyk functions and the scheme of its overall operations system. The second article (Part 2), will discuss some aspects of its practical applicability in the satellite monitoring of the Baltic ecosystem (see Woźniak et al. (2011) in this issue).
    Źródło:
    Oceanologia; 2011, 53, 4
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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