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  • 1
    Online Resource
    Online Resource
    Berlin, Heidelberg : Springer-Verlag Berlin Heidelberg
    Keywords: Physical geography ; Meteorology ; Geography ; Weights and measures ; Climatic changes ; Ecology ; Messtechnik ; Meteorologie ; Mikroklimatologie ; Angewandte Meteorologie ; Mikrometeorologie
    Description / Table of Contents: Gegenstand dieses Buches sind die atmosphärischen Vorgänge im unmittelbaren Lebensraum des Menschen, also in den unteren 100-1000 Metern der Atmosphäre und in Gebieten mit nur einigen Kilometern Ausdehnung. Die zweite Auflage wurde an die Entwicklungen der letzten Jahre angepasst und teilweise durch neuere Forschungsergebnisse erweitert. Damit bietet das Buch Grundlagen insbesondere für angewandte meteorologische Fachgebiete wie Biometeorologie, Agrarmeteorologie, Hydrometeorologie, Umweltmeteorologie und technische Meteorologie sowie für die Biogeochemie mit ausgewählten Beispielen aus diesen Gebieten. Ein wichtiger Schwerpunkt sind dabei die Transportprozesse und Stoffflüsse zwischen Atmosphäre und Erdoberfläche, wobei bewachsene und heterogene Unterlagen eine besondere Beachtung finden. Der Autor behandelt die Teilgebiete Theorie, Messtechnik, experimentelle Verfahren und Modellierung so, dass sie jeweils auch eigenständig für Lehre, Forschung und Praxis genutzt werden können.
    Type of Medium: Online Resource
    Pages: Online-Ressource , v.: digital
    Edition: Zweite, überarbeitete und erweiterte Auflage
    ISBN: 9783540382041
    DDC: 550
    RVK:
    RVK:
    Language: German
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  • 2
    Keywords: Aufsatzsammlung ; Festschrift ; Klimatologie ; Meereskunde
    Type of Medium: Book
    Pages: 272 S , Ill., graph. Darst., Kt
    ISBN: 3000110437
    Language: German , English
    Note: Beitr. teilw. engl., teilw. dt
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  • 3
    Keywords: Angewandte Meteorologie ; Mikrometeorologie ; Angewandte Meteorologie ; Mikrometeorologie
    Type of Medium: Book
    Pages: XVII, 289 S , Ill., graph. Darst., Tab , 24 cm
    ISBN: 3540003223
    DDC: 31
    RVK:
    RVK:
    Language: German
    Note: Literaturverz. S. [255] - 277
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  • 4
    ISSN: 1365-2486
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: The exchange of carbon dioxide (CO2) between the atmosphere and a forest after disturbance by wind throw in the western Russian taiga was investigated between July and October 1998 using the eddy covariance technique. The research area was a regenerating forest (400 m × 1000 m), in which all trees of the preceding generation were uplifted during a storm in 1996. All deadwood had remained on site after the storm and had not been extracted for commercial purposes. Because of the heterogeneity of the terrain, several micrometeorological quality tests were applied. In addition to the eddy covariance measurements, carbon pools of decaying wood in a chronosequence of three different wind throw areas were analysed and the decay rate of coarse woody debris was derived.During daytime, the average CO2 uptake flux was −3 µmol m−2s−1, whereas during night-time characterised by a well-mixed atmosphere the rates of release were typically about 6 µmol m−2s−1. Suppression of turbulent fluxes was only observed under conditions with very low friction velocity (u* ≤ 0.08 ms−1). On average, 164 mmol CO2 m−2d−1 was released from the wind throw to the atmosphere, giving a total of 14.9 mol CO2 m−2 (180 g CO2 m−2) released during the 3-month study period.The chronosequence of dead woody debris on three different wind throw areas suggested exponential decay with a decay coefficient of −0.04 yr−1. From the magnitude of the carbon pools and the decay rate, it is estimated that the decomposition of coarse woody debris accounted for about a third of the total ecosystem respiration at the measurement site. Hence, coarse woody debris had a long-term influence on the net ecosystem exchange of this wind throw area.From the analysis performed in this work, a conclusion is drawn that it is necessary to include into flux networks the ecosystems that are subject to natural disturbances and that have been widely omitted into considerations of the global carbon budget. The half-life time of about 17 years for deadwood in the wind throw suggests a fairly long storage of carbon in the ecosystem, and indicates a very different long-term carbon budget for naturally disturbed vs. commercially managed forests.
    Type of Medium: Electronic Resource
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