The results show the maximum rainfall did not occur at areas where the cloud-top temperature was the lowest or the cloud-top temperature gradient was the largest,but occurred at about four pixels ahead of the area with the largest temperature gradient around the lowest-temperature centers of cloud clusters.

Through analysis of different phenomena in the process of rainstorm of Zichang in Norhern Shaanxi on July 4, 2002, this extra-heavy rainstorm is formed by meso-βscale strong convective cloud cluster, having the characteristics of the formation, development and disappearance of the typical convective monomer.

The formation and development of the meso-β scale convective cloud clusters resulting in rainfallwith different intensities over the middle reachers of the Yangtze River are analysed.

This paper studies the detection and removal of clouds and their shadows from remote sensing images based on the theory of image processing and analyzing,and sets up the image model and region restoring model.

Infrared radiative transfer model of pollution cloud and computer simulation of infrared spectra

infrared emission spectra from pollution clouds are observed remotelyusing a passive Fourier transform infrared (FTIR) spectrometer.

A model of simulated spectra for pollution cloud in a complicated environment is proposed.

Based on the pyrotechnic and powder smoke cloud,the effect of vacuum pressure on the expanding velocity during the smoke cloud forming was studied experimentally with the method of the expansive velocity obtained by testing the increases of the cloud edge size.

The polarization scattering Doppler spectral characteristics of chaff clouds in outer space are studied.

Based on the background of ballistic missile defense, the polarization scattering properties of chaff cloud illuminated by pulse waveforms are studied.

In this paper, the coherent scattering model is used to study on dependency relationship between chaff cloud and its spatial distribution in the outer space.