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In the visible spectrum, the atmospheric attenuations to sunlight mainly include aerosol scattering, atmospheric molecule Rayleigh scattering and ozone absorption, while in the near-infrared spectrum (from 650 nm to 1 000 nm), we must take water-vapor absorption into account. Based on the atmospheric correction theory, using spectrum irradiance data measured by Instantaneous Ground spectrometer, ozone content measured by Microtops Ⅱ ozone monitor, water-vapor content and aerosol optical thickness measured by sun photometer, we give a new way to study water-vapor absorption to sunlight, and the result shows that the main peak values of water-vapor absorption coefficients are 0.025 cm^-1, 0.073 cm^-1, 0.124 cm^-1, 0.090 cm^-1, 0.141 cm^-1 and 0.417 cm^-1, which respectively lie at 692 nm, 725 nm, 761 nm, 818 nm, 912 nm and 937 nm. 相似文献
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滨海旅游开发与保护的研究 总被引:7,自引:0,他引:7
滨海旅游业在带来巨大的经济利益的同时,对沿海地区的环境具有一定的负面作用。区域海岸带综合管理规划是解决滨海旅游业的开发与环境保护矛盾的有效方法。按照综合管理的原则在对海岸带地区资源承载力和生态承载力做出估计后确定其环境容量及旅游容量,在保证国家宏观调控和地区优先发展方向的大前提下,做出滨海旅游可能的最优发展规划,最终应在地区性法规体现以保证实施。同时旅游业行业管理条例中同样应做出规定,提倡生态旅游,真正地实现海岸带和旅游业的可持续性发展。 相似文献
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