Zernike polynomials applied to apparent solar disk flattening for pressure profile retrievals
Author:
Dekemper E.,Vanhellemont F.,Mateshvili N.,Franssens G.,Pieroux D.,Bingen C.,Robert C.,Fussen D.
Abstract
Abstract. We present a passive method for the retrieval of atmospheric pressure profiles based on the measurement of the apparent flattening of the solar disk as observed through the atmosphere by a spaceborne imager. It involves accurate simulations of the solar occultation and uses the Zernike moments to quantify the flattening. This method is expected to achieve retrievals up to the lower mesosphere with uncertainties 10 to 1000 times smaller than the natural variability.
Publisher
Copernicus GmbH
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