Sensitivity of Simulated Nocturnal Convective Systems to Graupel Sedimentation Characteristics

Conference paper

Frederick Iat-Hin Tam, Ming-Jen Yang
Preprints. 2019 Conference of Weather Analysis and Forecast, Taiwan Geoscience Assembly (TGA), 2019 May

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APA Click to copy
Tam, F. I.-H., & Yang, M.-J. (2019). Sensitivity of Simulated Nocturnal Convective Systems to Graupel Sedimentation Characteristics. Taiwan Geoscience Assembly (TGA).

Chicago/Turabian Click to copy
Tam, Frederick Iat-Hin, and Ming-Jen Yang. “Sensitivity of Simulated Nocturnal Convective Systems to Graupel Sedimentation Characteristics.” Preprints. 2019 Conference of Weather Analysis and Forecast. Taiwan Geoscience Assembly (TGA), 2019.

MLA Click to copy
Tam, Frederick Iat-Hin, and Ming-Jen Yang. Sensitivity of Simulated Nocturnal Convective Systems to Graupel Sedimentation Characteristics. Taiwan Geoscience Assembly (TGA), 2019.

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@inproceedings{frederick2019a,
  title = {Sensitivity of Simulated Nocturnal Convective Systems to Graupel Sedimentation Characteristics},
  year = {2019},
  month = may,
  institution = {Taiwan Geoscience Assembly (TGA)},
  series = {Preprints. 2019 Conference of Weather Analysis and Forecast},
  author = {Tam, Frederick Iat-Hin and Yang, Ming-Jen},
  howpublished = {Preprints},
  month_numeric = {5}
}

How do different hydrometeor sedimentation assumptions in two-moment microphysical parameterization schemes impact MCS kinematics and dynamics?

Findings:

Sedimentation settings that enable preferential large graupel fallout beneath updrafts created buoyancy-induced low pressure anomaly near the melting level
Low pressure anomaly near melting level contributes to (a) stronger environmental dry air intrusion into the MCS, and (b) reduction in updraft tilt
Dynamical responses summarized above are beneficial to updraft intensification

Graphical summary of main findings