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A6structIntegration appears to. be a key for efficient exploitation of data acquired by operating satellites. In this paper we mainly consider geometric aspects and take advantage of information available from ephemeris data, combined with a few ground control points, in order to carry out the geometric combination of NOAA AVHRR and SPOT images by means of(More)
An analysis is made of the UV Index (UVI) obtained from the ultraviolet erythemal solar radiation (UVER) data measured by the Spanish UVB Radiometric Network between the years 2000 and 2009. Previously, the daily UVI has been evaluated using two different criteria: (a) the value corresponding to solar noon; and (b) the daily maximum value. The mean(More)
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