H. H. Ramadan

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Airborne sun photometer measurements are used to evaluate retrievals of extinction Aerosol Optical Depth (AOD). These data are extracted from spatially coincident and temporally near coincident measurements by the Ozone Monitoring Instrument (OMI) aboard the Aura satellite during 2005. OMI measured Top Of Atmosphere (TOA) reflectances are routinely inverted(More)
A regional chemical transport model assimilated with daily mean satellite and ground based Aerosol Optical Depth (AOD) observations is used to produce three dimensional distributions of aerosols throughout Europe for the year 2005. In this paper, the AOD measurements of the Ozone Monitoring Instrument (OMI) are assimilated with Polyphemus model. The aerosol(More)
A regional chemical transport model assimilated with daily mean satellite and ground based Aerosol Optical Depth (AOD) observations is used to produce three dimensional distributions of aerosols throughout Europe for the year 2005. In this paper, the AOD measurements of the Ozone Monitoring Instrument (OMI) are assimilated with Polyphemus model. In order to(More)
This paper describes the need for and the proposed design of the high performance computation for chemical transport model, with particular emphasis on Aerosol Optical Depth (AOD) determination. Throughout this paper, the AOD measurements of the Ozone Monitoring Instrument (OMI) are assimilated with Polyphemus model. The performance of the model simulation(More)
A regional chemical transport model assimilated with daily mean satellite and ground-based aerosol optical depth (AOD) observations is used to produce three-dimensional distributions of aerosols throughout Europe for the year 2005. In this paper, the AOD measurements of the Ozone Monitoring Instrument (OMI) are assimilated with Polyphemus model. In order to(More)
Varietal susceptibility of certain field crops were tested. Sesame and maize were resistant toM. javanica andM. incognita acrita infection. Cotton was resistant toM. javanica only. Onion and soybean were highly infected withM. javanica in comparison with the other tested hosts. Soybean also was highly infected withM. incognita acrita. Wheat showed the(More)
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