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  • 1
    Call number: 9/M 08.0390
    In: Developments in quaternary science
    Description / Table of Contents: Abstract: Helps you learn about the climate-environment system, its sensitivity, thresholds and feedback. This book presents the science on reconstructions from the Earth System, on methodological advances and on the ability of numerical models to simulate low and high frequency changes of climate, environment, and chemical cycling related to interglacials. Contents: Chapter 1. Forcing mechanisms (ed. M. Claussen) Chapter 2. Methods of palaeoclimate reconstruction and dating (ed. Frank Sirocko) Chapter 3 Climate and vegetation in Europe during MIS5 (M.F. S nchez Goni) Chapter 4. Climate and vegetation history of MIS 5-15 in Europe (Ed. Thomas Litt). Chapter 5. Modelling past interglacial climates (ed. Martin Claussen) Chapter 6. Analysis (F. Sirocko, M,.Claussen, et al.)
    Type of Medium: Monograph available for loan
    Pages: XIII, 622 S. : Ill., graph. Darst. + 1 CD-ROM
    Edition: Reprint.
    ISBN: 0444529551 , 978-0-444-52955-8
    Series Statement: Developments in quaternary science 7
    Location: Reading room
    Branch Library: GFZ Library
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  • 2
    Call number: AWI A2-07-0016
    In: Developments in quaternary science
    Description / Table of Contents: Table of Contents: Preface. - Acknowledgements. - Section 1: Forcing Mechanisms. - Section 2: Methods of palaeoclimate reconstruction and dating. - Section 3: Climate and vegetation in Europe during MIS 5. - Section 4: Climate, Vegetation and Mammalian faunas in Europe during Middle Pleistocene Interglacials (MIS 7, 9, 11). - Section 5: Modelling past interglacial climates. - Section 6: Synthesis. - Index
    Type of Medium: Monograph available for loan
    Pages: XIII, 622 S. : Ill., graph. Darst. + 1 CD-ROM
    Edition: 1. ed.
    ISBN: 0444529551 , 978-0-444-52955-8
    Series Statement: Developments in quaternary science 7
    Classification:
    Meteorology and Climatology
    Branch Library: AWI Library
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  • 3
    Call number: ZS-190(98) ; ZSP-625-98
    In: PIK report
    Type of Medium: Series available for loan
    Pages: 55 S.
    Series Statement: PIK report 98
    Classification:
    Ecology
    Location: Lower compact magazine
    Location: Lower compact magazine
    Branch Library: GFZ Library
    Branch Library: GFZ Library
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  • 4
    Monograph available for loan
    Monograph available for loan
    Hamburg : Max-Planck-Institut für Meteorologie
    Associated volumes
    Call number: ZSP-686-163
    In: Report
    Type of Medium: Monograph available for loan
    Pages: 26 S. : graph. Darst. : 29,5 cm
    ISSN: 0937-1060
    Series Statement: Report / Max-Planck-Institut für Meteorologie 163
    Branch Library: GFZ Library
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  • 5
    Call number: ZS-190(34) ; ZSP-625-34
    In: PIK report
    Type of Medium: Series available for loan
    Pages: 27 S. , graph. Darst.
    Series Statement: PIK report 34
    Location: Lower compact magazine
    Location: Lower compact magazine
    Branch Library: GFZ Library
    Branch Library: GFZ Library
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Global change biology 11 (2005), S. 0 
    ISSN: 1365-2486
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: Predictions of the effects of climate change on the extent of forests, savannas and deserts are usually based on simple response models derived from actual vegetation distributions. In this review, we show two major problems with the implicitly assumed straightforward cause–effect relationship. Firstly, several studies suggest that vegetation itself may have considerable effects on regional climate implying a positive feedback, which can potentially lead to large-scale hysteresis. Secondly, vegetation ecologists have found that effects of plants on microclimate and soils can cause a microscale positive feedback, implying that critical precipitation conditions for colonization of a site may differ from those for disappearance from that site. We argue that it is important to integrate these nonlinearities at disparate scales in models to produce more realistic predictions of potential effects of climate change and deforestation.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Global change biology 4 (1998), S. 0 
    ISSN: 1365-2486
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: An asynchronously coupled global atmosphere–biome model is used to assess the stability of the atmosphere–vegetation system under present-day conditions of solar irradiation and sea-surface temperatures. When initialized with different land-surface conditions (1, the continents, except for regions of inland ice, completely covered with forest; 2, with grassland; 3, with (dark) desert; and 4, with (bright) sand desert), the atmosphere–biome model finds two equilibrium solutions: the first solution yields the present-day distribution of subtropical deserts, the second reveals a moister climate in North Africa and Central East Asia and thereby a northward shift of vegetation particularly in the south-western Sahara. The first solution is obtained with initial condition 4, and the second with 1, 2, 3. When comparing these results with an earlier study of biogeophysical feedback in the African and Asian monsoon area, it can be concluded that North Africa is probably the region on Earth which is most sensitive considering bifurcations of the atmosphere–vegetation system at the global scale.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A global coupled ocean–atmosphere model of intermediate complexity is used to simulate the equilibrium climate of both today and the Last Glacial Maximum, around 21,000 years ago. The model successfully predicts the atmospheric and oceanic circulations, temperature distribution, hydrological ...
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Climate dynamics 12 (1996), S. 371-379 
    ISSN: 1432-0894
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract. The use of one-way coupling of an equilibrium-response vegetation, or biome, model with atmospheric circulation models is critically assessed. Global biome patterns from various, equally likely numerical realisations of present-day climate are compared. It has been found that the changes in global biome patterns to be expected from interdecadal variability in the atmosphere affect 9–12% of the continental surface (Antarctica excluded). There is no unique difference pattern, although changes are mainly induced by the variability of annual moisture availability and, to a lesser extent, by winter temperatures. This variability of biome patterns reflects the uncertainty in the estimate of equilibrium vegetation patterns from finite time interval climatologies. Changes in biome distributions between present-day climate and anomaly climate, the latter induced by an increase in sea-surface temperatures and atmospheric CO2, are larger than and different in kind from the changes due to inderdecadal variability. Roughly 30% of the land surface is affected by these changes. It appears that the strongest and most significant signal is seen for boreal biomes which can be attributed to an increase in near surface temperatures.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-0894
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract. Leads and polynyas have a great impact on the energy budget of the polar ocean and atmosphere. Since atmospheric general circulation models are not able to resolve the spatial scales of these inhomogeneities, it is necessary to include the effect of fractional sub-grid scale sea-ice inhomogeneities on climate by a suitable parametrization. In order to do this we have divided each model grid-cell into an ice-covered and an ice-free part. Nevertheless, a numerical model requires effective transports representative for the whole grid-box. A simple procedure would be to use grid averages of the surface parameters for the calculation of the surface fluxes. However, as the surface fluxes are non-linearly dependent on the surface properties, the fluxes over ice and open water should be calculated separately according to the individual surface-layer structure of each surface type. Then these local fluxes should be averaged to obtain representative fluxes. Sensitivity experiments with the Hamburg atmospheric general circulation model ECHAM3 clearly show that a subgrid scale distribution of sea ice is a dominant factor controlling the exchange processes between ocean and atmosphere in the Arctic. The heat and water vapour transports are strongly enhanced leading to a significant warming and moistening of the polar troposphere. This affects the atmospheric circulation in high- and mid-latitudes; e.g. the stationary lows are modified and the transient cyclonic activity over the subpolar oceans is reduced. A pronounced impact of sub-grid scale sea-ice distribution on the model climate can only be obtained when the non-linear behaviour of the surface exchange processes is considered by a proper, physically based, averaging of the surface fluxes. A simple linear averaging of surface parameters is not sufficient.
    Type of Medium: Electronic Resource
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