Retrievals from GOMOS stellar occultation measurements using characterization of modeling errors
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چکیده
منابع مشابه
GOMOS: Ozone profile measurements by stellar occultations
The Global Ozone Monitoring by Occultation of Stars instrument (GOMOS) will be launched on board ESA’s Envisat satellite in late 2001. GOMOS will measure ozone and trace gases in the atmosphere by detecting the absorption of star light in UV, visible and infrared wavelengths. GOMOS will deliver ozone and other trace gas profiles at altitudes 15-90 km with a good vertical resolution and with a g...
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Point-like nature of stars leads to significant disturbances of light beams passed through the atmosphere by refractive effects. These effects should be taken into account in retrievals from stellar occultation measurements. We consider the influence of scintillation on stellar occultation measurements and on quality of ozone retrievals from these measurements, based on experience of the GOMOS ...
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Remote sensing plays a key role in monitoring the atmosphere, which becomes increasingly important for the Earth’s changing environment. The stellar occultation technique is a novel method to monitor vertical distribution of ozone and other trace gases from the troposphere to the upper mesosphere. GOMOS (Global Ozone Monitoring by Occultation of Stars) flying on board the European Space Agency’...
متن کاملUv Stellar Occultation Measurements of Nighttime Equatorial Ozone
The Princeton University Ultraviolet Spectrometer-Telescope on the NASA Orbiting Astronomical Observatory Copernicus was used for stellar occultation measurements of atmospheric ozone. Two sets of observations of the target star 8-Cen were carried out on 26 July 1975 and 13-14 June 1976 at wavelengths from 2550• to 3100•. After unfolding of the data, ozone density profiles near the equator with...
متن کاملLower-Troposphere Refractivity Bias in GPS Occultation Retrievals
Analysis of atmospheric occultation data from the GPS/MET experiment has revealed that the refractivity retrievals in the lower troposphere were systematically smaller than those obtained with numerical weather prediction models. It has been suggested that the bias was due to a combination of atmospheric multipath, critical refraction, and receiver tracking errors. In this paper, we show that a...
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ژورنال
عنوان ژورنال: Atmospheric Measurement Techniques
سال: 2010
ISSN: 1867-8548
DOI: 10.5194/amt-3-1019-2010