Applying of helicity in an analysis of a severe sandstorm

@inproceedings{Tao2005ApplyingOH,
  title={Applying of helicity in an analysis of a severe sandstorm},
  author={Jian-hong Tao and Jinsong Wang and Jian-Ying Feng and Yue Chang and Xiao-li Liu},
  booktitle={SPIE Optics + Photonics},
  year={2005}
}
  • Jian-hong Tao, Jinsong Wang, +2 authors Xiao-li Liu
  • Published in SPIE Optics + Photonics 2005
  • Physics, Engineering
  • The helicity of a severe sandstorm happened in Northwest China was analyzed by using global reanalysis grid data of NCEP/NCAR for 4 times a day. As an important physical parameter in analyzing and predicting severe convective weather, the helicity also has good indication in the forecasting of sandstorm. The distribution of helicity over the sandstorm area was negative at higher levels and positive at lower levels. There was definite relationship between the evolvement of helicity's negative… CONTINUE READING

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