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  • 1
    Online Resource
    Online Resource
    Ecology and Management of Neotropical Migratory Birds : A Synthesis and Review of Critical Issues. (1995)
    Oxford :Oxford University Press, Incorporated,
    Details
    Keywords: Birds -- Conservation -- America. ; Birds -- Migration -- America. ; Birds -- Ecology -- America. ; Birds -- Habitat -- America. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (506 pages)
    Edition: 1st ed.
    ISBN: 9780195359176
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=430449
    DDC: 598.252/5/097
    Language: English
    Note: Intro -- Contents -- Introduction: Importance of Knowledge and its Application in Neotropical Migratory Birds -- PART I: POPULATION TRENDS -- 1 Population Trends from the North American Breeding Bird Survey -- 2 The Strength of Inferences about Causes of Trends in Populations -- PART II: TEMPORAL PERSPECTIVES ON POPULATION LIMITATION AND HABITAT USE -- 3 When and How are Populations Limited? The Roles of Insect Outbreaks, Fire, and Other Natural Perturbations -- 4 Summer versus Winter Limitation of Populations: What are the Issues and What is the Evidence? -- 5 Habitat Requirements During Migration: Important Link in Conservation -- 6 Habitat Use and Conservation in the Neotropics -- PART III: FOREST MANAGEMENT -- 7 Impacts of Silviculture: Overview and Management Recommendations -- 8 Effects of Silvicultural Treatments in the Rocky Mountains -- 9 Silviculture in Central and Southeastern Oak Pine Forests -- PART IV: GENERAL HUMAN EFFECTS -- 10 Effects of Agricultural Practices and Farmland Structures -- 11 An Assessment of Potential Hazards of Pesticides and Environmental Contaminants -- 12 Livestock Grazing Effects in Western North America -- PART V: SCALE PERSPECTIVES -- 13 Habitat Fragmentation in the Temperate Zone -- 14 A Landscape Ecology Perspective for Research, Conservation, and Management -- 15 Ecology and Behavior of Cowbirds and their Impact on Host Populations -- 16 Single-Species versus Multiple-Species Approaches for Management -- 17 Summary: Model Organisms for Advancing Understanding of Ecology and Land Management -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- K -- L -- M -- N -- O -- P -- R -- S -- T -- W.
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    GEOMAR EBL
  • 2
    Online Resource
    Online Resource
    Edison, his life and inventions (1998)
    Charlottesville, Va : University of Virginia Library
    Details Availability
    Keywords: Edison, Thomas A. ; Edison, Thomas A. 1847-1931 Edison, Thomas A. 1847-1931 ; Edison, Thomas A ; Edison, Thomas A. ; Inventors Biography ; United States ; Inventors Biography ; United States ; United States ; Inventors Biography ; Electronic books ; Inventors Biography. ; Electronic books. ; Electronic books Biography
    Type of Medium: Online Resource
    ISBN: 0585233187 , 9780585233185
    Series Statement: EBSCOhost eBook Collection
    URL: http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=2011346
    URL: https://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=2011346
    Language: English
    Note: *Vol. 2* , The text for this NetLibrary eBook was obtained from the University of Virginia Library Electronic Text Center , Access may be limited to NetLibrary affiliated libraries , Mode of access: World Wide Web.
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  • 3
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    Sea-ice flux in the East Greenland Current (1999)
    Elsevier
    In:  Deep Sea Research Part II: Topical Studies in Oceanography, 46 (6-7). pp. 1063-1082.
    Details
    Publication Date: 2016-09-30
    Description: The sea-ice export out of the central Arctic through the Fram Strait is a key variable in the Arctic climate system. Satellite data provide the only basis for mapping ice features with a high spatial and temporal resolution in polar regions. An automatic drift algorithm has been employed and optimized to monitor the sea-ice drift velocity in the Greenland Sea with AVHRR data. The combination of the ice drift and the spatial ice distribution provides an insight into the ice transport processes along the coast of Greenland. The combination with sea-ice thickness measurements allows an estimation of the spatial distribution of the sea-ice mass flux. The seasonal and spatial variability of the mass flux allows further predictions of the meridional melting and freezing processes along the East Greenland Current. This investigation covers the years 1993 and 1994. Seasonal and spatial distributions of the sea-ice drift were derived. The derived absolute values in this study are in good agreement with estimates proposed by other authors.
    Type: Article , PeerReviewed
    Format: text
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 4
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    Impact of river discharge and regional climatology on the decay of sea ice in the Laptev Sea (1999)
    INSTAAR, Institute of Arctic and Alpine Research
    In:  Arctic, Antarctic, and Alpine Research, 31 (3). pp. 214-229.
    Details
    Publication Date: 2019-02-27
    Description: Summer sea-ice conditions in the Laptev Sea are characterized by high interannual variability. The impact of Lena River discharge, one of the Arctic's major rivers discharging roughly 525 km(3) annually onto the Laptev shelf, and the regional meteorological regime affect the spring and summer ice regime of the Laptev Sea. Using ground and remote-sensing data and statistical analyses, it is shown that river discharge plays an insignificant role in the large-scale decay of the Laptev Sea ice cover. Hydrological and remote sensing data for the period 1979-1990 show that discharge/sea-ice interactions are confned to the coastal regions, with Lena River water flooding a fast-ice belt, roughly 25 km wide, in early to mid-June. Sea-ice decay and summer ice extent are shown to be affected most strongly by dynamic atmospheric forcing and by opening and enlargement of coastal polynyas in early spring
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.2307/1552250
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 5
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    Study of sea-ice pressure ridge distributions from in-situ laser profiler measurements and ERS SAR signatures (1998)
    In:  [Paper] In: European Conference on Synthetic Aperture Radar EUSAR 98, 25.-27.05.1998, Friedrichshafen, Germany . Proceedings of the 2nd European Conference on Synthetic Aperture Radar EUSAR 98 .
    Details
    Publication Date: 2019-10-09
    Type: Conference or Workshop Item , PeerReviewed
    Format: text
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    OceanRep: Conference paper
  • 6
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    Studies of sea-ice motion in the Laptev Sea with the use of satellite remote sensing and numerical modelling (1999)
    In:  [Paper] In: IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99, 28.06.-02.07.1999, Hamburg, Germany . Proceedings of the International Geoscience and Remote Sensing Symposium IGARSS'99 ; pp. 2013-2015 .
    Details
    Publication Date: 2019-09-12
    Description: Seasonal and interannual variability of ice drift in the Laptev Sea and ice exchange with the Arctic Ocean have been investigated using remote sensing data, a large-scale dynamic-thermodynamic numerical sea ice model and semi-empirical method. During the period 1979-1995 sea ice was exported from the Laptev Sea with maximum export occuring in February and minimum in August. The average winter ice outflow during this period was equal to 482700 km/sup 2/. Estimates of ice exchange between the northern and southern parts of the Laptev Sea during the period 1936 to 1996 exhibited a strong interannual variability, but did not reveal significant trends.
    Type: Conference or Workshop Item , PeerReviewed
    Format: text
    DOI: 10.1109/IGARSS.1999.775017
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    OceanRep: Conference paper
  • 7
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    Zum Einfluß meteorologischer und hydrologischer Prozesse auf die sommerliche Meereisverteilung in der Laptewsee (1998)
    Selbstverlag des DWD
    In:  [Paper] In: Deutsche Meteorologen-Tagung, 14.-18.09.1998, Leipzig, Germany ; pp. 447-449 .
    Details
    Publication Date: 2020-05-20
    Type: Conference or Workshop Item , PeerReviewed
    Format: text
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    OceanRep: Conference paper
  • 8
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    Vergleich der Variabilität der Meereiseigenschaften in Satellitenbeobachtungen und Simulationen (1998)
    Selbstverlag des DWD
    In:  [Paper] In: Deutsche Meteorologen-Tagung, 14.-18.09.1998, Leipzig, Germany ; pp. 455-456 .
    Details
    Publication Date: 2019-10-23
    Type: Conference or Workshop Item , PeerReviewed
    Format: text
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    OceanRep: Conference paper
  • 9
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    Retrieval of Antarctic sea-ice pressure ridge frequencies from ERS SAR imagery by means of in situ laser profiling and usage of a neural network (1999)
    Taylor & Francis
    In:  International Journal of Remote Sensing, 20 (15&16). pp. 3111-3121.
    Details
    Publication Date: 2017-05-24
    Description: Application of a neural network to ERS-SAR images to retrieve pressure ridge spatial frequencies is presented. For an independent dataset, the rmserror between the retrieved and the true ridge frequency as determined by means of laser profiling was about 5 ridges per kilometre, or 30%. The network is trained with results from in situ laser profiling of ridge distributions and coincident SAR backscatter properties. The study focuses on summer data from the Bellingshausen, Amundsen and Weddell Seas in Antarctica, which were gathered in February 1994 and 1997. Pressure ridge frequencies varied from 3 to 30 ridges per kilometre between different regions, thus providing a wide range of training and test data for the algorithm development. From ERS-SAR images covering the area of the laser flights with a time difference of a few days at maximum, histograms of the backscatter coefficient sigma0 were extracted. Statistical parameters (e.g. mean, standard deviation, tail-to-mean ratio) were calculated from these distributions and compared with the results of the laser flights. Generally, the mean backscatter increases with a growing ridge frequency, and the signal range becomes narrower. However, these correlations are only poor, and improved results are obtained when the statistical parameters are combined to train the neural network.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1080/014311699211642
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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