Hiroaki Kuze

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A novel method of differential optical absorption spectroscopy (DOAS) is proposed and demonstrated to monitor the concentration of atmospheric pollutant gas. In contrast to conventional DOAS measurements with continuous light sources, the present method relies on white flashlights such as aviation obstruction lights that are generally installed on tall(More)
We developed a method for characterizing atmospheric properties from ground-based, spectral measurements of direct and scattered solar radiation under clear sky conditions. A compact spectroradiometer is employed for radiation measurement in the wavelength range between 350 and 1050 nm with a resolution of 10 nm. Spectral matching of measured and simulated(More)
The advancement of remote sensing technology has contributed to a significant level of assistance in reducing nature’s calamities, threatening both human lives and property in its immediate vicinity. Volcanic eruption is one of a kind where the dangerous environment surrounding it also causes great difficulties for close-up monitoring and surveillance.(More)
A case of multiple intracranial tuberculomas diagnosed by enhanced brain CT scan and MRI, which developed during the course of miliary tuberculosis under anti-tuberculous chemotherapy was experienced. Chemotherapy with an increased dose of each agent and corticosteroid was administered, and eventually intracranial tuberculomas nearly disappeared. After(More)
We built a differential optical absorption spectroscopy system to measure near-surface CO2 absorption in the atmosphere using a nanosecond white light continuum. The white light laser can cover wavelengths ranging from 420 to 2400 nm, where the CO2 and H2O absorption lines are located. At an optical path length of 568 m, it was possible to evaluate(More)
Surface reflectance, in principle, can be estimated from atsensor radiance if we construct a physical model that incorporates several atmospheric an topographic parameters. Among them, spatial inhomogeneity of aerosol optical depth is the most important but difficult factor. In this paper, we propose a method simultaneosly estimating surface reflectance and(More)