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  • Spacecraft Instrumentation  (1)
  • mechanical disturbances  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Recent changes of the mangroves of the Saloum River Estuary, Senegal (1997)
    Springer
    Mangroves and salt marshes 1 (1997), S. 163-172 
    Details
    ISSN: 1572-977X
    Keywords: mangroves ; Saloum estuary ; bare salt-flats tannes ; drought ; anthropogenic factors ; breach of Sangomar ; mechanical disturbances
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The water, soil and vegetation characteristics are presented of themangroves of the Saloum River estuary, Senegal, in 1995 and 1996. Themangroves have changed markedly due to decreasing rainfall and increasingevaporation rates, particularly in the 1980s, as well as new oceanographicconditions resulting from the breaching of a protective sand dune. Thehealth of the remaining mangrove communities depends on the localhydrological and hydrodynamic conditions, the microtopography, the humanexploitation of the forest and the clay-sand composition of the soils.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009900724172
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    Paper (German National Licenses)
    Fulltext
  • 2
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    The INTEGRAL scatterometer SPI (1997)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: The INTErnational Gamma Ray Astrophysics Laboratory (INTEGRAL) mission's onboard spectrometer, the INTEGRAL spectrometer (SPI), is described. The SPI constitutes one of the four main mission instruments. It is optimized for detailed measurements of gamma ray lines and for the mapping of diffuse sources. It combines a coded aperture mask with an array of large volume, high purity germanium detectors. The detectors make precise measurements of the gamma ray energies over the 20 keV to 8 MeV range. The instrument's characteristics are described and the Monte Carlo simulation of its performance is outlined. It will be possible to study gamma ray emission from compact objects or line profiles with a high energy resolution and a high angular resolution.
    Keywords: Spacecraft Instrumentation
    Type: ; 591-598
    Format: text
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    NASA TECHNICAL REPORTS
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