Ground-based observation of atmospheric microwave noise may be used to get atmospheric temperature-humidity profile and parameters of cloud and rain. From September to October 1981, the experiment of remote sensing on...Ground-based observation of atmospheric microwave noise may be used to get atmospheric temperature-humidity profile and parameters of cloud and rain. From September to October 1981, the experiment of remote sensing on atmosphere was carried out at Peking University with 5 mm—1.35 cm band 4-channel radiometers. In this note, we present and discuss the experimental results from 8 mm to 1.35 cm radiometers of remote sensing atmospheric water vapor content and the characteristics of absorption in λ=1.35 cm water vapor band and λ=8 mm window band. In these bands, the microwave absorption of atmosphere is small, much smaller展开更多
As is well known, the many factors correlating the occurrence of an earthquake such as solar radiation, self-rotation rate of the earth, atmospheric circulation, drought and thermal vicissitude may all lead to the var...As is well known, the many factors correlating the occurrence of an earthquake such as solar radiation, self-rotation rate of the earth, atmospheric circulation, drought and thermal vicissitude may all lead to the variation of atmospheric temperature. Therefore it is of significance to research on the relationship between atmospheric temperature and earthquake, as has been reported. A preliminary analysis on the data collected in Yunnan Province shows that there exists an obvious relationship between the atmospheric temperature anomaly and a great展开更多
当玻璃外壳搭配金属机械机芯,用手工艺与艺术把坚固的金属与澄澈的水晶玻璃融为一体,化无形为有形,连接着人、环境与永恒的时间。积家的Atmos空气钟构造在1928年就已经震惊世界。这个无需任何外力的钟,根据巧妙的设计,能把气温转成动力...当玻璃外壳搭配金属机械机芯,用手工艺与艺术把坚固的金属与澄澈的水晶玻璃融为一体,化无形为有形,连接着人、环境与永恒的时间。积家的Atmos空气钟构造在1928年就已经震惊世界。这个无需任何外力的钟,根据巧妙的设计,能把气温转成动力。其奥秘在于一个充满混合气体的密封罩,气体根据温度的细微变化膨胀或收缩,不断为座钟上链,一摄氏度的温差可以产生支持48小时运转的动力。爱马仕委托Les Cristalleries de Saint-Louis制造空气钟超凡的水晶玻璃罩。展开更多
The multi-fractal ity over China are studied behaviors of relative humid using the multi-fractal de trended fluctuation analysis （DFA） method. Three multi fractal parameters （the spectrum width Aa, the asymmetry Aa...The multi-fractal ity over China are studied behaviors of relative humid using the multi-fractal de trended fluctuation analysis （DFA） method. Three multi fractal parameters （the spectrum width Aa, the asymmetry Aaas, and the long-range correlation exponent a0） of the singularity spectrum are introduced to quantify the multi-fractal behaviors. The results show that multi-frac tality exists in daily humidity records over most stations in China and is mainly due to the broad distribution of the probability density of the sequence values. Strong multi fractal behaviors over some stations in the Yunnan, Guangdong, and Inner Mongolia provinces are obvious. These behaviors are mainly caused by different long range correlations between large and small fluctuations. The asymmetry of the singularity of relative humidity records is weak, except for a small number of stations in the far east and west of China, where the singularity spec trum is left-skewed. Finally, the long-range correlations in North China are stronger than those in South China, which indicates better predictability in North China. By studying the parameters of the multi-fractal spectrum, various data of long-range power law correlations of the relative humidity records are obtained, which may pro vide theoretical support for climate prediction.展开更多
文摘Ground-based observation of atmospheric microwave noise may be used to get atmospheric temperature-humidity profile and parameters of cloud and rain. From September to October 1981, the experiment of remote sensing on atmosphere was carried out at Peking University with 5 mm—1.35 cm band 4-channel radiometers. In this note, we present and discuss the experimental results from 8 mm to 1.35 cm radiometers of remote sensing atmospheric water vapor content and the characteristics of absorption in λ=1.35 cm water vapor band and λ=8 mm window band. In these bands, the microwave absorption of atmosphere is small, much smaller
文摘As is well known, the many factors correlating the occurrence of an earthquake such as solar radiation, self-rotation rate of the earth, atmospheric circulation, drought and thermal vicissitude may all lead to the variation of atmospheric temperature. Therefore it is of significance to research on the relationship between atmospheric temperature and earthquake, as has been reported. A preliminary analysis on the data collected in Yunnan Province shows that there exists an obvious relationship between the atmospheric temperature anomaly and a great
文摘当玻璃外壳搭配金属机械机芯,用手工艺与艺术把坚固的金属与澄澈的水晶玻璃融为一体,化无形为有形,连接着人、环境与永恒的时间。积家的Atmos空气钟构造在1928年就已经震惊世界。这个无需任何外力的钟,根据巧妙的设计,能把气温转成动力。其奥秘在于一个充满混合气体的密封罩,气体根据温度的细微变化膨胀或收缩,不断为座钟上链,一摄氏度的温差可以产生支持48小时运转的动力。爱马仕委托Les Cristalleries de Saint-Louis制造空气钟超凡的水晶玻璃罩。
基金supported by the National Natural Science Foundation of China (40975027)
文摘The multi-fractal ity over China are studied behaviors of relative humid using the multi-fractal de trended fluctuation analysis （DFA） method. Three multi fractal parameters （the spectrum width Aa, the asymmetry Aaas, and the long-range correlation exponent a0） of the singularity spectrum are introduced to quantify the multi-fractal behaviors. The results show that multi-frac tality exists in daily humidity records over most stations in China and is mainly due to the broad distribution of the probability density of the sequence values. Strong multi fractal behaviors over some stations in the Yunnan, Guangdong, and Inner Mongolia provinces are obvious. These behaviors are mainly caused by different long range correlations between large and small fluctuations. The asymmetry of the singularity of relative humidity records is weak, except for a small number of stations in the far east and west of China, where the singularity spec trum is left-skewed. Finally, the long-range correlations in North China are stronger than those in South China, which indicates better predictability in North China. By studying the parameters of the multi-fractal spectrum, various data of long-range power law correlations of the relative humidity records are obtained, which may pro vide theoretical support for climate prediction.
