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—A 1-D variational system has been developed to process spaceborne measurements. It is an iterative physical inversion system that finds a consistent geophysical solution to fit all radiometric measurements simultaneously. One of the particular-ities of the system is its applicability in cloudy and precipitating conditions. Although valid, in principle, for(More)
—Passive microwave sea-ice retrieval algorithms are typically tuned to brightness temperature measurements with simple treatments of weather effects. The new technique presented is a two-step algorithm that variationally retrieves sur-results indicate a performance that is superior to the heritage algorithm particularly over multiyear ice and during the(More)
Gordon ͓Appl. Opt. 42, 542 ͑2003͔͒ argues that use of external rather than internal mixing when aerosol optical properties are computed will not seriously affect atmospheric correction of ocean color imagery, in spite of the fact that top of the atmosphere reflectances computed with the two approaches differ significantly as shown by Yan et al. ͓Appl. Opt.(More)
Current methods for the atmospheric correction of ocean-color imagery rely on the computation of optical properties of a mixture of chemically different aerosol particles through combination of the mixture with it into an effective, single-particle component that has an average refractive index. However, a multi-component approach in which each particle(More)
1. ABSTRACT The multi-layer dense media radiative transfer (DMRT) theory based on the quasicrystalline approximation (QCA) has been applied for studying both passive and active microwave remote sensing signatures [1], [2]. It is shown that the layered structure is essential to analyze the microwave emission from snow because high frequency is sensitive to(More)
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