Effects of Vertical Wind Shear, Radiation, and Ice Clouds on Precipitation Distributions During a Landfall of Severe Tropical Storm, Bilis (2006)

Donghai Wang; Ping Zhu; Jinfang Yin; Xiaofan Li; Wei-Kuo Tao
June 2013
Terrestrial, Atmospheric & Oceanic Sciences;Jun2013, Vol. 24 Issue 3, p383
Academic Journal
Torrential rainfall responses to vertical wind shear, radiation, and ice clouds during the landfall of severe Tropical Storm, Bilis (2006) are investigated via a rainfall partitioning analysis of grid-scale sensitivity experiment data. The rainfall data are partitioned into eight types based on surface rainfall budget. The largest contributions to total rainfall come from local atmospheric moistening, water vapor convergence, and hydrometeor loss/convergence (Type 3; 29%) when the large-scale upward motions occurred only in the upper troposphere on 15 July 2006. When the large-scale upward motion center moved to the mid troposphere on 16 July, Type 3 hydrometeor loss/convergence (26%) plus local atmospheric drying, water vapor divergence, and hydrometeor loss/convergence (Type 5; 25%) show equally important contributions to total rainfall. The exclusion of vertical wind shear primarily reduced Type 5 rainfall because of the weakened hydrometeor loss/convergence on 16 July. The removal of cloud radiative effects enhances Type 5 rainfall due to increased local atmospheric drying and hydrometeor loss/convergence on 15 July. The elimination of ice clouds generally reduced Type 2 rainfall through the decreases in local atmospheric drying, water vapor convergence, and hydrometeor gain/divergence and Type 3 rainfall over two days.


Related Articles

  • A Multimodel Assessment of RKW Theory’s Relevance to Squall-Line Characteristics. Bryan, George H.; Knievel, Jason C.; Parker, Matthew D. // Monthly Weather Review;Oct2006, Vol. 134 Issue 10, p2772 

    The authors evaluate whether the structure and intensity of simulated squall lines can be explained by “RKW theory,” which most specifically addresses how density currents evolve in sheared environments. In contrast to earlier studies, this study compares output from four numerical...

  • Storm-Relative Helicity Revealed from Polarimetric Radar Measurements. Kumjian, Matthew R.; Ryzhkov, Alexander V. // Journal of the Atmospheric Sciences;Mar2009, Vol. 66 Issue 3, p667 

    The dual-polarization radar variables are especially sensitive to the microphysical processes of melting and size sorting of precipitation particles. In deep convective storms, polarimetric measurements of such processes can provide information about the airflow in and around the storm that may...

  • Wintertime Supercell Thunderstorms in a Subtropical Environment: A Diagnostic Study. Wang, Chung-Chieh; Chen, George Tai-Jen; Yang, Shan-Chien; Chou, Hung-Chi // Monthly Weather Review;Jan2009, Vol. 137 Issue 1, p366 

    The present study documents the environment, initiation, and evolution of three isolated supercell storms on 19 December 2002, as the first case near Taiwan reported in the literature, mainly using radar data and manual and gridded analyses. In a subtropical environment, the supercells occurred...

  • Thick Anvils as Viewed by the TRMM Precipitation Radar. Wei Li; Schumacher, Courtney // Journal of Climate;Mar2011, Vol. 24 Issue 6, p1718 

    This study investigates anvils from thick, nonprecipitating clouds associated with deep convection as observed in the tropics by the Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR) during the 10-yr period, 1998--2007. Anvils observable by the PR occur, on average, 5 out of...

  • Discrepancies in Different Precipitation Data Products in the Bay of Bengal during Summer Monsoon Season. Qi, Li; Wang, Yuqing // Advances in Meteorology;5/24/2015, Vol. 2015, p1 

    In the east Bay of Bengal (BoB), the precipitation maximum always lies near the eastern coast on the windward side of Mountain Araka Yoma in the summer monsoon season. In this study, different precipitation products are compared in terms of their representation of the offshore rainfall maximum...

  • Megacryometeors: Distribution on Earth and Current Research. Martinez-Frias, Jesus; Huertas, Antonio Delgado // AMBIO - A Journal of the Human Environment;Sep2006, Vol. 35 Issue 6, p314 

    The article cites a study on the distribution of megacryometeors on Earth. The term megacryometeors is used in order to avoid terminological confusion, emphasize the existence of such atmospheric phenomenon and describe large ice conglomerations which are formed under clear sky conditions that...

  • The Influence of Horizontal Environmental Variability on Numerically Simulated Convective Storms. Part I: Variations in Vertical Shear. Richardson, Yvette P.; Droegemeier, Kelvin K.; Davies-Jones, Robert P. // Monthly Weather Review;Oct2007, Vol. 135 Issue 10, p3429 

    Severe convective storms are typically simulated using either an idealized, horizontally homogeneous environment (i.e., single sounding) or an inhomogeneous environment constructed using numerous types of observations. Representing opposite ends of the spectrum, the former allows for the study...

  • The Vertical Structure of Mesoscale Convective Vortices. Davis, Christopher A.; Galarneau Jr., Thomas J. // Journal of the Atmospheric Sciences;Mar2009, Vol. 66 Issue 3, p686 

    Simulations of two cases of developing mesoscale convective vortices (MCVs) are examined to determine the dynamics governing the origin and vertical structure of these features. Although one case evolves in strong vertical wind shear and the other evolves in modest shear, the evolutions are...

  • Vertical Structure of Hurricane Eyewalls as Seen by the TRMM Precipitation Radar. Hence, Deanna A.; Houze, Robert A. // Journal of the Atmospheric Sciences;Aug2011, Vol. 68 Issue 8, p1637 

    Statistical analysis of the vertical structure of radar echoes in the eyewalls of tropical cyclones, shown by the Tropical Rainfall Measurement Mission (TRMM) Precipitation Radar (PR), shows that the eyewall contains high reflectivities and high echo tops, with deeper and more intense but highly...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics