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R. W. Saunders, L. L. Stowe, G. E. Hunt, and C. F. England


Daily averaged and instantaneous values or the Earth's radiation budget have been computed from the satellite measurements of reflected solar and emitted terrestrial radiation with MEUGSAT 1, Nimbus 7 ERB and TIROS-N scanning radiometers. The estimates have been compared for 12 selected 2.5° × 2.5° latitude-longitude moons for 14 October 1979. The METEOSAT daily mean values were used to study the effects of diurnal variations because observations were available nearly every hour of the day. The comparisons between the three independent data sets is discussed and an assessment is made of the relative importance of diurnal variations and anisotropic scattering models. A cheek was made on the inferred broad-band MEUOSAT fluxes by a direct comparison with coincident Nimbus 7 ERB measurements.

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R. W. Saunders, N. R. Ward, C. F. England, and G. E. Hunt

TIROS–N Advanced Very High Resolution Radiometer (AVHRR) imagery has been used to study the temperature structure of the sea surface around the British Isles. We have combined the satellite imagery from both TIROS–N, METEOSAT, and conventional synoptic data to obtain a calibration for both 11 μm infrared channels, which gave sea surface temperatures accurate to ± 1 K. The changes in the sea surface temperature around the British Isles for 12 July 1979 are shown well by the satellite data. In particular, we have made a study of an anomalously warm patch in the North Sea that appeared at local noon over an area where the surface winds were weak, inhibiting surface mixing.

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