منابع مشابه
Optical remote sensing of surface roughness through the turbulent atmosphere.
Using a CO(2), cw, coherent lidar, we have measured the surface roughness of diffuse targets through 1000 m of turbulent atmosphere. The technique measures the phase fluctuations of the speckle field at the receiver and relates the measured phase variance to the surface roughness. Measurements were made with aluminum targets that had been sandblasted with 8-, 16-, and 30-grit material and also ...
متن کاملRemote sensing of non-aerosol absorption in cloud free atmosphere
[1] Knowledge of the absorption of sunlight by atmospheric gases, aerosols and clouds is key to understanding climate and its variation. Several studies suggested that clouds absorb sunlight significantly more than what models predict. Other studies suggested that the anomalous absorption is present in cloud-free conditions. Here we measure absorption in cloud free atmosphere using the Aerosol ...
متن کاملAnnual amphidromes observed in the atmosphere with remote sensing data
[1] Annual cycle, one of the principle modes in the variability of the air-sea system, can be analyzed using tide analysis tools for extending the concept of oceanic tidal amphidromes to the atmosphere. In this paper, the annual phase-amplitude characteristics of two variables, sea-level pressure (SLP) and precipitation, were investigated to explore the annual atmospheric amphidromes on a globa...
متن کاملMillimeter-wave Environmental Remote Sensing of Earth's Atmosphere
introduction It is well known to the scientific community that the spectral properties of the gases that make up the Earth’s atmosphere play a major role in determining the environment in which we live. For example, the temperature at the Earth’s surface is determined by the balance between the solar radiation absorbed at the Earth’s surface and the infrared radiation emitted by the Earth into ...
متن کاملSensing Atmosphere
The World Health Organization reports that 2 million people die each year from the effects of air pollution, twice the number of fatalities as from automobile accidents [1]. Direct causes of air pollution related deaths include aggravated asthma, bronchitis, emphysema, lung and heart diseases, and respiratory allergies. While civic agencies address large-scale environmental health problems from...
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ژورنال
عنوان ژورنال: American Journal of Astronomy and Astrophysics
سال: 2016
ISSN: 2376-4678
DOI: 10.11648/j.ajaa.20160405.12