Results 31 to 40 of about 17,599,864 (236)

Performance Modeling of Ultraviolet Atmospheric Scattering of Different Light Sources Based on Monte Carlo Method

Applied Sciences, 2020
Since the atmosphere has a strong scattering effect on ultraviolet light, the transmission of non-line-of-sight (NLOS) signals can be realized in the atmosphere.
Qiushi Zhang, Xin Zhang, Lingjie Wang, Guangwei Shi, Qiang Fu, Tao Liu   +5 more
doaj   +1 more source

Do atmospheric aerosols form glasses? [PDF]

, 2008
Zobrist B, Marcolli C, Pedernera DA, Koop T. Do atmospheric aerosols form glasses? ATMOSPHERIC CHEMISTRY AND PHYSICS. 2008;8(17):5221-5244.A new process is presented by which water soluble organics might influence ice nucleation, ice growth, chemical ...
Koop, Thomas, B. Zobrist, D. A. Pedernera, Koop, T., Koop, Thomas ; https://orcid.org/, Pedernera, D. A., Marcolli, C., C. Marcolli, T. Koop, Marcolli, Claudia, Pedernera, D.A., Zobrist, Bernhard, Zobrist, B.   +12 more
core   +2 more sources

An Enhancement in Single-Image Dehazing Employing Contrastive Attention over Variational Auto-Encoder (CA-VAE) Method

International Journal of Mathematical, Engineering and Management Sciences, 2023
Hazy images and videos have low contrast and poor visibility. Fog, ice fog, steam fog, smoke, volcanic ash, dust, and snow are all terrible conditions for capturing images and worsening color and contrast.
Sandeep Vishwakarma, Anuradha Pillai, Deepika Punj   +2 more
doaj   +1 more source

Effects of high-latitude atmospheric gravity wave disturbances on artificial HF radar backscatter [PDF]

, 2006
International audienceObservations of HF radar backscatter from artificial field-aligned irregularities in an ionosphere perturbed by travelling disturbances due to atmospheric gravity waves are presented.
Tim K. Yeoman (7583066), A. Senior, M. J. Kosch (7595327), I. W. McCrea, M. T. Rietveld (7594184), Rietveld, M. T., Senior, A., T. K. Yeoman, I. W. McCrea (7594871), M. T. Rietveld, Kosch, M. J., M. J. Kosch, A. Senior (3255282), McCrea, I. W., Yeoman, T. K.   +14 more
core   +2 more sources

Four-dimensional variational data assimilation for inverse modelling of atmospheric methane emissions: method and comparison with synthesis inversion [PDF]

, 2008
A four-dimensional variational (4D-Var) data assimilation system for inverse modelling of atmospheric methane emissions is presented. The system is based on the TM5 atmospheric transport model.
Bergamaschi, P., M. C. Krol, P. Bergamaschi, J. F. Meirink, Krol, M.C., Dep Natuurkunde, Meirink, J., Marine and Atmospheric Research, Meirink, J.F., Krol, M. C., Meirink, J. F.   +10 more
core   +2 more sources

ASM-VoFDehaze: a real-time defogging method of zinc froth image

Connection Science, 2022
When the ambient temperature is low, a large amount of water mist and dust will inevitably appear around the zinc flotation cell, forming haze, which seriously affects the extraction of flotation froth image features. General defogging methods of natural
Wenhui Xiao, Zhaohui Tang, Ce Yang, Wei Liang, Meng-Yen Hsieh   +4 more
doaj   +1 more source

Parameterization for Cloud Longwave Scattering for Use in Atmospheric Models

Journal of Climate, 1999
Abstract A parameterization for the scattering of thermal infrared (longwave) radiation by clouds has been developed based on discrete-ordinate multiple-scattering calculations. The effect of backscattering is folded into the emission of an atmospheric layer and the absorption between levels by scaling the cloud optical thickness.
Ming-Dah Chou, Kyu-Tae Lee, Si-Chee Tsay, Qiang Fu   +3 more
openaire   +2 more sources

Investigation of the effects of cloud attenuation on satellite communication systems [PDF]

, 2012
The aim of this project is to investigate the attenuation due to clouds at 20- 50GHz; to develop an accurate long-term prediction model of cloud attenuation applicable to slant-path links and evaluate the impact of cloud attenuation dynamics on the ...
Alawadi, Tareq A.
core   +3 more sources

Single Image Dehazing Using Global Illumination Compensation

Sensors, 2022
The existing dehazing algorithms hardly consider background interference in the process of estimating the atmospheric illumination value and transmittance, resulting in an unsatisfactory dehazing effect. In order to solve the problem, this paper proposes
Junbao Zheng, Chenke Xu, Wei Zhang, Xu Yang   +3 more
doaj   +1 more source

A global coupled Eulerian-Lagrangian model and 1 × 1 km CO2 surface flux dataset for high-resolution atmospheric CO2 transport simulations [PDF]

, 2012
We designed a method to simulate atmospheric CO2 concentrations at several continuous observation sites around the globe using surface fluxes at a very high spatial resolution.
Lukyanov, A, M. Rigby, Nisbet, Euan, Maksyutov, S., Tsuboi, K, Lowry, David, A. Lukyanov, Matsueda, H, A. Varlagin, Andres, R. J., Fisher, R. E., Nisbet, E., Sawa, Y., V. Valsala, Saito, M, Nisbet, EG, Lukyanov, A., Varlagin, A, Nisbet, E. G., Oda, T, T. Oda, Maksyutov, S, Valsala, V, Andres, R.J., Varlagin, A., R. Toumi, H. Matsueda, R. Zhuravlev, Fisher, R., Toumi, R, Oda, T., Fisher, RE, Ganshin, A., Sawa, Y, Toumi, R., E. G. Nisbet, Lowry, D, Andres, R., Tsuboi, K., R. E. Fisher, R. J. Andres, Rigby, M, Rigby, M., S. Maksyutov, A. Ganshin, M. Saito, Lowry, D., Zhuravlev, R, D. Lowry, K. Tsuboi, Fisher, Rebecca, Matsueda, H., Y. Sawa, Valsala, V., Zhuravlev, R., Ganshin, A, Saito, M., Andres, RJ   +57 more
core   +2 more sources