Frederick Iat-Hin Tam's Research Page - Microphysical and Near-Storm

Master's thesis

Frederick Iat-Hin Tam, Ming-Jen Yang, Wen-Chau Lee
National Taiwan University, M. S. thesis, 2019 Jan

Cite

APA Click to copy
Tam, F. I.-H., Yang, M.-J., & Lee, W.-C. (2019, January). Microphysical and Near-Storm Environmental control on the Maintenance of Nocturnal Mesoscale Convective Systems: A Case Study (Master's thesis). National Taiwan University, M. S. thesis.

Chicago/Turabian Click to copy
Tam, Frederick Iat-Hin, Ming-Jen Yang, and Wen-Chau Lee. “Microphysical and Near-Storm Environmental Control on the Maintenance of Nocturnal Mesoscale Convective Systems: A Case Study .” Master's thesis, National Taiwan University, 2019.

MLA Click to copy
Tam, Frederick Iat-Hin, et al. Microphysical and Near-Storm Environmental Control on the Maintenance of Nocturnal Mesoscale Convective Systems: A Case Study . National Taiwan University, Jan. 2019.

BibTeX Click to copy

@mastersthesis{frederick2019a,
  title = {Microphysical and Near-Storm Environmental control on the Maintenance of Nocturnal Mesoscale Convective Systems: A Case Study },
  year = {2019},
  month = jan,
  address = {M. S. thesis},
  school = {National Taiwan University},
  author = {Tam, Frederick Iat-Hin and Yang, Ming-Jen and Lee, Wen-Chau},
  howpublished = {},
  month_numeric = {1}
}

In this M.S. thesis, we investigated the sustenance of nocturnal convection when encountering boundary layer stabilized by radiative cooling.

Observational analyses show two routes that would lead to convective sustenance:

External: Moisture heterogeneity associated with low-level jets (LLJs) creates areas that are more unstable above boundary layer.
Internal: Sustaining convection seems to have more robust ice processes and a stronger mid-level rear-to-front (RTF) inflow.

Sensitivity experiments were conducted to examine how the MCS kinematically responds to different microphysical parameterization assumptions. Spatial variability in rimed particle drop size distributions (DSDs) seems to be the critical factor leading to the "internal" sustaining route. Parameterization assumptions that unrealistically depict this variability are shown to change storm kinematics, even under similar ambient environmental conditions.