Initial results from the DE-1 ozone imaging instrumentation

Mathematics – Logic

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Atmospheric Composition, Backscattering, Dynamics Explorer 1 Satellite, Imaging Techniques, Ozone, Data Reduction, Diurnal Variations, Meteorological Parameters

Scientific paper

The first synoptic global-scale images of total column ozone are obtained in the sunlit hemisphere using the imaging instrumentation on board the spacecraft Dynamics Explorer 1 (DE-1). The total column ozone is determined using the backscatter ultraviolet technique. The high apogee altitude of the eccentric, polar orbit allows global-scale images of the terrestrial ozone field to be obtained in 12 minutes with good spatial resolution. Previous ozone-monitoring spacecraft have required much longer time periods for comparable spatial coverage because of their lower altitudes. The much higher altitude of DE-1 also provides hours of continuous imaging of features, as compared to minutes or seconds with previous spacecraft. Substantial short-term (less than 1 day) variations in the synoptic ozone field have been detected. This paper provides a brief description of this unique observation platform and shows the validity of the measured fields using comparisons with the Dobson network and with various meteorological measurements.

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