Publication Abstracts

Booth et al. 2018

Booth, J.F., C.M. Naud, and J. Jeyaratnam, 2018: Extratropical cyclone precipitation life cycles: A satellite-based analysis. Geophys. Res. Lett., early on-line, doi:10.1029/2018GL078977.

Although extratropical cyclones are the most common midlatitude storms, the relationship between their precipitation life cycle and dynamical strength life cycle has not been thoroughly analyzed. Given that thermodynamic heat exchanges associated with precipitation impact cyclone circulation, there is a need to understand the precipitation/dynamics relationship. Based on Integrated Multi-satellitE Retrievals for Global Precipitation Measurement (GPM) precipitation and Lagrangian cyclone tracks, the precipitation maximum occurs prior to the dynamical strength maximum 70% of the time. The lag in timing is consistent with the difference in cyclone precipitable water vapor at the two peaks. Conditional subsetting of the cyclone composites shows that if the precipitable water vapor distribution is constrained to be equal throughout the composite life cycle, the precipitation peak occurs very near the time of the peak in cyclone dynamical strength. Thus, the boost in dynamical strength caused by latent heat associated with precipitation manifest itself with little to no time lag.

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BibTeX Citation

@article{bo06300k,
  author={Booth, J. F. and Naud, C. M. and Jeyaratnam, J.},
  title={Extratropical cyclone precipitation life cycles: A satellite-based analysis},
  year={2018},
  journal={Geophys. Res. Lett.},
  doi={10.1029%2F2018GL078977},
}

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RIS Citation

TY  - JOUR
ID  - bo06300k
AU  - Booth, J. F.
AU  - Naud, C. M.
AU  - Jeyaratnam, J.
PY  - 2018
TI  - Extratropical cyclone precipitation life cycles: A satellite-based analysis
JA  - Geophys. Res. Lett.
DO  - 10.1029%2F2018GL078977
ER  -

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