Synergetic cloud fraction determination for SCIAMACHY using MERIS
نویسندگان
چکیده
منابع مشابه
The Determination of the Cloud Fraction in the Sciamachy Pixels Using Meris
The cloud fraction is an important atmospheric product needed for an accurate determination of trace gas concentrations and also cloud and aerosol properties from space-borne optical measurements. In this paper we develop a technique to determine the cloud fraction in the Scanning Imaging Absorption Spectrometer for Atmospheric ChartographY (SCIAMACHY) ground scenes (30x30 km and even larger gr...
متن کاملThe semianalytical cloud retrieval algorithm for SCIAMACHY II. The application to MERIS and SCIAMACHY data
The SemiAnalytical CloUd Retrieval Algorithm (SACURA) is applied to the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) data. In particular, we derive simultaneously cloud optical thickness (COT) and cloud top height (CTH), using SCIAMACHY measurements in the visible (442 nm, COT) and in the oxygen A-band (755–775 nm, CTH). Some of the results obtained are comp...
متن کاملMeris O2 Calibration Using Sciamachy Measurements
A new MERIS spectral calibration method is proposed exploiting the synergy between MERIS and SCIAMACHY ENVISAT instruments. Detailed method description and preliminary results are presented in this paper. In the O2 calibration mode MERIS is measuring atmospheric radiances in the 750-780 nm spectral range in order to verify the instrument ability to reproduce position and shape of O2 band-A abso...
متن کاملCloud Retrieval for Sciamachy
The ENVISAT Satellite Payload includes the SCIAMACHY instrument designed to measure a number of chemically important atmospheric trace constituents on a global basis. Accurate determination of cloud information out of SCIAMACHY nadir measurements is needed for the retrieval of ozone and other trace gases and it is crucial for more demanding applications like aerosol retrieval and the retrieval ...
متن کاملReflectance Comparison between Sciamachy and Meris
In this work we present a comparison of the current SCIAMACHY and MERIS reflectance calibrations at wavelengths between 442 and 885 nm. For that purpose we, firstly, locate all the SCIAMACHY pixels within a given MERIS image and, secondly, we calculate the median and standard deviation of all the MERIS pixels (≈1000) within each SCIAMACHY pixel. Results show that SCIAMACHY underestimates the re...
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ژورنال
عنوان ژورنال: Atmospheric Measurement Techniques
سال: 2011
ISSN: 1867-8548
DOI: 10.5194/amt-4-319-2011