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  • 1
    Monograph available for loan
    Monograph available for loan
    Wandel von Vulnerabilität und Klima: Müssen unsere Vorsorgewerkzeuge angepasst werden? : Workshop des Deutschen Komitee Katastrophenvorsorge e.V. und der Akademie für Raumforschung und Landesplanung am 27./28.11.2006 in Hannover (2007)
    Bonn : IDNDR
    Associated volumes
    Details Availability
    Call number: PIK N 071-08-0016
    In: Schriftenreihe des DKKV
    Type of Medium: Monograph available for loan
    Pages: IV, 124 S. , Abb. , 297 mm x 210 mm
    Edition: 1. Aufl.
    ISBN: 9783933181398 , 3-933181-39-9
    Series Statement: Schriftenreihe des DKKV 35
    Location: A 18 - must be ordered
    Branch Library: PIK Library
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  • 2
    Monograph available for loan
    Monograph available for loan
    Atmosphäre : aktuelle Beiträge zu Luft, Ozon, Sturm, Starkregen und Klima (2002)
    Leipzig : Inst. für Meteorologie
    Details Availability
    Call number: PIK N 456-06-0100
    Type of Medium: Monograph available for loan
    Pages: 50 S.
    ISBN: 3980731588
    Series Statement: Wissenschaftliche Mitteilungen aus dem Institut für Meteorologie der Universität Leipzig Sonderheft
    Location: A 18 - must be ordered
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  • 3
    Electronic Resource
    Electronic Resource
    Glacial and interglacial wind regimes over the eastern subtropical Atlantic and North-West Africa (1981)
    [s.l.] : Nature Publishing Group
    Nature 293 (1981), S. 193-196 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Analysis of aeolo-marine dust deposits in the subtropical eastern Atlantic enables the strength of the major wind patterns during the late Quaternary to be evaluated and gives an insight into the climate of North ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/293193a0
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  • 4
    Electronic Resource
    Electronic Resource
    Calculated wind climatology of the South-Saxonian/North-Czech mountain topography including improved resolution of mountains (1996)
    Springer
    Annales geophysicae 14 (1996), S. 767-772 
    Details
    ISSN: 0992-7689
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract A mesoscale model has been applied to calculate climatological means of the surface wind. A reliable average requires more than 40 model runs, which are differentiated by the direction and speed of the geostrophic wind under the assumption of neutral stratification. The frequency distributions of the geostrophic wind have been taken from observations of the 850-hPa winds at the radiosonde station in Prague for a 10-year period. The simulation results have been averaged over all sectors and speed classes of the geostrophic wind according to their frequencies. A comparison of the calculated mean wind speeds with observed ones shows deviations of about 0.4 ms−1 outside the mountains. The representation of steep topography and isolated mountains on the basis of a 3-km horizontal resolution of the simulations needs special treatment in order to reduce the gap of up to 4 ms−1 between observed and simulated mean wind speeds over mountains. Therefore, an empiric speed-up formula has been applied to the isolated mountains that otherwise would fall through the 3-km meshes. The corresponding deviations have been reduced to 1.5 ms−1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s00585-996-0767-2
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  • 5
    Electronic Resource
    Electronic Resource
    Zur Bestimmung des Bodenwärmestroms (1977)
    Springer
    Meteorology and atmospheric physics 25 (1977), S. 383-397 
    Details
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Summary By means of the thermal conduction equation the errors of the soil heat flux are investigated. The thermal conductivity λ of the soil is calculated only by the aid of the soil temperatures. If the temperatures are given with an accuracy of 0,1 K large errors in the soil heat flux are found, especially when using the heat flux equation. With the augmentation of temperature-accuracy to 0,01 K the errors become less then 10%.
    Notes: Zusammenfassung Mit Hilfe der Wärmeleitungsgleichung werden Fehler, die bei der Bestimmung des Bodenwärmestroms auftreten, berechnet. Dabei soll auch das Temperaturleitvermögen des Bodens aus den Bodentemperaturen ermittelt werden. Bei einer Genauigkeit der Temperaturwerte von 0,1 K treten zum Teil sehr große Fehler auf, insbesondere bei der Berechnung des Bodenwärmestroms nach dem Wärmeleitungsansatz. Es stellt sich heraus, daß eine Temperaturmeßgenauigkeit von 0,01 K die Fehler bei der Verwendung des Tautochronenverfahrens unter einen Wert von 10% verringern kann.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02317997
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  • 6
    Electronic Resource
    Electronic Resource
    The structure of West African Squall Lines and their environmental moisture budget (1988)
    Springer
    Meteorology and atmospheric physics 39 (1988), S. 74-84 
    Details
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Summary The Squall Lines are the most important convective systems of the West African Sahel region yielding precipitation during the summer months mainly from June to September. The composite method is used to show the average structure of the continental Squall Lines observed during the WA-MEX period July 1979. Composite fields of flow and moisture are produced of the areas within the Squall Lines as well as of their environment to show the coupling between both the Squall Lines and the larger scales features such as the African Easterly Jet, the Easterly Waves and the Monsoon Front. The Squall Lines are preferably situated west of the Easterly Wave trough whereas the area east of the trough mostly is Squall Line free. Here the northward directed water vapour flux into the Sahel region is enhanced. Furthermore, north-ward moisture transport occurs north of the Squall Lines. The water vapour of both fluxes from the south as well as the water vapours available from intensive local evaporation in the Squall Line free space are then incorporated in the subsequent Squall Lines and thus provide the Sahel région with the essential rains.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01041933
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  • 7
    Electronic Resource
    Electronic Resource
    Did Lake Chad exist around 18,000 yr BP? (1984)
    Springer
    Meteorology and atmospheric physics 34 (1984), S. 299-308 
    Details
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Die Oberflächenausdehnung des Tschadsees wird als ein Ergebnis von Klimaparametern im Tschadbecken betrachtet. Mit Hilfe eines einfachen analytischen Modells, das die Energie- und Wasserbilanz des Sees beschreibt, wird der Einfluß von meteorologischen und hydrologischen Größen untersucht. Für den Zeitpunkt der maximalen nordhemisphärischen Vereisung vor etwa 18 000 Jahren beschreibt ein Datensatz die Mimatischen Bedingungen im Tschadbecken. Im einzelnen werden geringere Zuflüsse und Niederschläge für den See, höhere Werte der Globalstrahlung und der Windgeschwindigkeit sowie niedrigere Lufttemperaturen und eine geringere atmosphärische Feuchte angenommen. Unter diesen Bedingungen reduzierte sich die Fläche des Tschadsees um 80% und betrug weniger als 4000 km2.
    Notes: Summary The surface area of the closed Lake Chad is regarded as a product of the climatic parameters in the Chad Basin. With the aid of a simple analytical model using the energy and the water balance the sensitivity of the water volume of the lake with respect to meteorological and hydrological parameters was investigated. A data set is derived describing the climatic conditions in the Chad Basin during the period of the maximum of the northhemispheric glaciation at about 18,000 yr BP. In particular a reduced hydrological input into the lake was assumed as well as higher insolation and wind speed while the air temperature and the atmospheric moisture content were reduced. The resulting surface area of Lake Chad is then diminished by 80% and calculated to be less than 4000 km2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02265495
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  • 8
    Electronic Resource
    Electronic Resource
    A composite study of early summer squall lines and their environment over West Africa (1988)
    Springer
    Meteorology and atmospheric physics 38 (1988), S. 153-163 
    Details
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Summary Composites of synoptic reports and wind observations in a coordinate system moving with the squall lines over the WAMEX area in June 1979 allow us to show the average structure of the airflow, the moisture and temperature fields in the synoptic scale environment of West African continental squall lines. The monsoon front, the African Easterly Jet, the easterly waves, and the squall lines interact and produce the observed air flow patterns. The results of the composite enalysis reveal a northward surge of the monsoonal air masses in the rear of the squall lines thus providing favorable conditions for the generation of new squall lines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01029779
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  • 9
    Electronic Resource
    Electronic Resource
    Pleistocene and Holocene climates in Africa (reply) (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 779-780 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] TETZLAFF, SARNTHEIN AND WOLTER REPLY-The comments of Nicholson give us the opportunity to clarify possible misunderstandings of our concepts and conclusions on the underlying causes of climatic change in North Africa1. Nicholson particularly questions our evidence of 'stable' latitudinal positions ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/296779b0
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  • 10
    Electronic Resource
    Electronic Resource
    The Askervein Hill Project: Vertical profiles of wind and turbulence (1988)
    Springer
    Boundary layer meteorology 43 (1988), S. 143-169 
    Details
    ISSN: 1573-1472
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract This is one of a series of papers on the Askervein Hill Project. It presents results from the Askervein 1982 and 1983 experiments in the form of vertical profiles of mean wind and turbulence integral statistics at upwind reference locations and at two hilltop sites. The data were obtained from a variety of sensors including sonic, Gill UVW and cup anemometers mounted on 50, 30, 17 and 10 m towers and TALA kite systems. Comparisons with numerical-model predictions are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00153977
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