Search Results - (Author, Cooperation:H. Kawahata)

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  1. 1
    T. Watanabe ; A. Suzuki ; S. Minobe ; T. Kawashima ; K. Kameo ; K. Minoshima ; Y. M. Aguilar ; R. Wani ; H. Kawahata ; K. Sowa ; T. Nagai ; T. Kase
    Nature Publishing Group (NPG)
    Published 2011
    Staff View
    Publication Date:
    2011-03-11
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Animals ; *Anthozoa/metabolism ; Atmosphere ; *Climate ; El Nino-Southern Oscillation/*history ; Entropy ; Fossils ; History, Ancient ; Oxygen Isotopes ; Pacific Ocean ; Philippines ; Salinity ; Seasons ; Seawater/analysis ; *Temperature ; Time Factors
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Kawahata, H. ; Kusakabe, M. ; Kikuchi, Y.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0012-821X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Geosciences
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0012-821X(87)90132-4

    Articles: DFG German National Licenses
  3. 3
    Staff View
    ISSN:
    0012-821X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Geosciences
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0012-821X(94)00082-4

    Articles: DFG German National Licenses
  4. 4
    Kawahata, H. ; Yukino, I. ; Suzuki, A.
    Springer
    Published 2000
    Staff View
    ISSN:
    1432-0975
    Keywords:
    Key words Carbon budget ; Nutrients ; Total carbon dioxide ; Fringing reef ; Ground water
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Geosciences
    Notes:
    Abstract Measurements of CO2 system parameters and nutrients showed the potential influence of terrestrial inputs on the carbon budget of a fringing coral reef on Ishigaki Island, Japan. Land-derived freshwaters, including river and ground water, make a relatively large contribution (0.5–1.2% by volume) to the water circulation of the reef. These terrestrial waters exhibit extremely high fugacity of CO2 (fCO2 up to 6400 μatm), reflecting enrichments in total alkalinity and dissolved inorganic carbon. Since the dissolved inorganic C:P ratio is anomalously high in terrestrial waters compared with the mean C:P ratios of primary production, excess carbon could be released into the atmosphere. Terrestrial inputs deliver a large quantity of C relative to P. The study site was a source of CO2 at the time of measurement. Such a situation is likely to prevail all year round, and it may occur elsewhere.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/s003380000093

    Articles: DFG German National Licenses
  5. 5
    Kawahata, H. ; Suzuki, A. ; Goto, K.
    Springer
    Published 1997
    Staff View
    ISSN:
    1432-0975
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Geosciences
    Notes:
    Abstract.  Precise measurements of the partial pressure of CO2 (PCO2) in oceanic and lagoonal surface waters from Palau Barrier Reef and Majuro Atoll were taken to ascertain the net effect of these coral reef systems on air-sea CO2 exchange. PCO2 in the surface water in the lagoon of Palau Barrier Reef and Majuro Atoll was 48 and 14 μatm higher than in the surrounding oceanic water, respectively. A total carbon dioxide vs. total alkalinity diagram indicates that calcification is mainly responsible for CO2 evasion in these coral reef systems.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/s003380050082

    Articles: DFG German National Licenses