Publication


Y. Sun, et al.
An examination of convective moistening of the lower stratosphere using satellite data
Earth and Space Science (2015EA000115), 2(7), 320-330, 2015; doi: 10.1002/2015EA000115
H2O HDO H218O H217O Middle atmosphere Troposphere deep convection satellite data stratospheric water vapor
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Abstract


In this paper, we use satellite data to test the hypothesis that deep convection moistens the lower stratosphere. Water vapor measurements from Earth Observing System-Microwave Limb Sounder and Atmospheric Chemistry Experiment-Fourier Transform Spectrometer over North America are binned according to the International Satellite Cloud Climatology Project deep convection indices. The results show that in the North American region (50–112°W, 10–50°N) the convection-impacted samples are significantly moister than the nonimpact samples in the lowermost stratospheric layer right above the tropopause, and a drier tendency is also noticed right above this moistened layer. Trajectory modeling is used to aid the identification of deep convection-impacted water vapor samples. However, we find that a substantial fraction of high-concentration (>8 ppmv) samples at 100 hPa cannot be attributed to nearby deep convections.

Reference


@article{ESS2:ESS235,
  author = "Y. Sun and Y. Huang",
  title = "An examination of convective moistening of the lower stratosphere using satellite data",
  year = 2015,
  journal = "Earth and Space Science",
  volume = 2,
  number = 7,
  pages = "320-330",
  month = "Jul",
  keywords = "H2O, HDO, H218O, H217O, Middle atmosphere, Troposphere, deep convection, satellite data, stratospheric water vapor",
  doi = "10.1002/2015EA000115",
  url = "http://dx.doi.org/10.1002/2015EA000115",
  note = "2015EA000115"
}
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