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Mostrando ítems 1 a 9 de 360.
  1. Library Resource
    Artículos de revistas y libros
    Diciembre, 1995
    Nigeria, África, África occidental

    Research scientists must have access to field records to ensure that their experimental treatments are neither masked nor affected by previous land usage. Research fields must be identified on the ground and accurate records kept of all operations and treatments carried out. Several procedures have been developed at IITA which help to ensure accurate field records are maintained and so research accuracy is improved.

  2. Library Resource
    Artículos de revistas y libros
    Diciembre, 1995
    Malasia, Asia sudoriental

    This paper describes a number of pieces of work that we have carried out in connection with surface temperature, making use if satellite thermal infrared data. The study involves estimating land surface temperature, sea surface temperature, land sub-surface temperature and forest fires. A plane-parallel radiative transfer model was used to derive a multi-channel method for retriving land surface temperature from space. The perfomance and reliability of this algorithm has been tested for a dry atmosphere whose value of surface temperature lies between 255 and 280 K.

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