The Experts below are selected from a list of 3024 Experts worldwide ranked by ideXlab platform

Richard Kershaw - One of the best experts on this subject based on the ideXlab platform.

  • Sensitivity of a simulated tropical Squall Line to long‐wave radiation
    Quarterly Journal of the Royal Meteorological Society, 1997
    Co-Authors: I. Dharssi, Richard Kershaw
    Abstract:

    A two-dimensional cloud-resolving model is used to simulate a tropical Squall Line and to examine its sensitivity to long-wave radiation. Model results show that the magnitude of the sensitivity to long-wave radiation depend on the organization and structure of the Squall Line. For one simulation, the inclusion of long-wave radiation increased surface precipitation by nearly a third. Long-wave radiation is also found to enhance the mid-level rear inflow and upper-level outflow of the Squall Line. Sensitivity experiments are performed to examine the role of cloud-top cooling and cloud-base warming, differential cooling between clear and cloudy regions, and domain-wide cooling.

  • Sensitivity of a simulated tropical Squall Line to long-wave radiation
    Quarterly Journal of the Royal Meteorological Society, 1997
    Co-Authors: I. Dharssi, Richard Kershaw, Wei-kuo Tao
    Abstract:

    A two-dimensional cloud-resolving model is used to simulate a tropical Squall Line and to examine its sensitivity to long-wave radiation. Model results show that the magnitude of the sensitivity to long-wave radiation depend on the organization and structure of the Squall Line. For one simulation, the inclusion of long-wave radiation increased surface precipitation by nearly a third. Long-wave radiation is also found to enhance the mid-level rear inflow and upper-level outflow of the Squall Line. Sensitivity experiments are performed to examine the role of cloud-top cooling and cloud-base warming, differential cooling between clear and cloudy regions, and domain-wide cooling.

I. Dharssi - One of the best experts on this subject based on the ideXlab platform.

  • Sensitivity of a simulated tropical Squall Line to long‐wave radiation
    Quarterly Journal of the Royal Meteorological Society, 1997
    Co-Authors: I. Dharssi, Richard Kershaw
    Abstract:

    A two-dimensional cloud-resolving model is used to simulate a tropical Squall Line and to examine its sensitivity to long-wave radiation. Model results show that the magnitude of the sensitivity to long-wave radiation depend on the organization and structure of the Squall Line. For one simulation, the inclusion of long-wave radiation increased surface precipitation by nearly a third. Long-wave radiation is also found to enhance the mid-level rear inflow and upper-level outflow of the Squall Line. Sensitivity experiments are performed to examine the role of cloud-top cooling and cloud-base warming, differential cooling between clear and cloudy regions, and domain-wide cooling.

  • Sensitivity of a simulated tropical Squall Line to long-wave radiation
    Quarterly Journal of the Royal Meteorological Society, 1997
    Co-Authors: I. Dharssi, Richard Kershaw, Wei-kuo Tao
    Abstract:

    A two-dimensional cloud-resolving model is used to simulate a tropical Squall Line and to examine its sensitivity to long-wave radiation. Model results show that the magnitude of the sensitivity to long-wave radiation depend on the organization and structure of the Squall Line. For one simulation, the inclusion of long-wave radiation increased surface precipitation by nearly a third. Long-wave radiation is also found to enhance the mid-level rear inflow and upper-level outflow of the Squall Line. Sensitivity experiments are performed to examine the role of cloud-top cooling and cloud-base warming, differential cooling between clear and cloudy regions, and domain-wide cooling.

Su-tzai Soong - One of the best experts on this subject based on the ideXlab platform.

  • Numerical simulation of a subtropical Squall Line over the Taiwan Strait
    Monthly Weather Review, 1991
    Co-Authors: Joanne Simpson, Su-tzai Soong
    Abstract:

    Abstract A two-dimensional, time-dependent, and nonhydrostatic numerical cloud model is used to study the development and structure of a subtropical Squall Line that occurred during TAMEX (Taiwan Area Mesoscale Experiment). The model includes a parameterized ice-phase microphysical scheme and long- and shortwave radiative transfer processes, as well as heat and moisture fluxes from the ocean surface. It was found that dynamic and kinematic structures of this simulated subtropical Squall Line are quite similar to its counterparts observed in the tropics and midlatitudes. For example, the Squall Line has a quasi-steady structure with a successive generation of cells at the gust front that propagate rearward relative to the front, the precipitation, and an evaporatively cooled downdraft at low and midlevels. This particular subtropical Squall Line is also shown to have a distinct midtropospheric rear inflow and a moderate anvil component of the total precipitation. The vertical transport of horizontal moment...

Wei-kuo Tao - One of the best experts on this subject based on the ideXlab platform.

  • Sensitivity of a simulated tropical Squall Line to long-wave radiation
    Quarterly Journal of the Royal Meteorological Society, 1997
    Co-Authors: I. Dharssi, Richard Kershaw, Wei-kuo Tao
    Abstract:

    A two-dimensional cloud-resolving model is used to simulate a tropical Squall Line and to examine its sensitivity to long-wave radiation. Model results show that the magnitude of the sensitivity to long-wave radiation depend on the organization and structure of the Squall Line. For one simulation, the inclusion of long-wave radiation increased surface precipitation by nearly a third. Long-wave radiation is also found to enhance the mid-level rear inflow and upper-level outflow of the Squall Line. Sensitivity experiments are performed to examine the role of cloud-top cooling and cloud-base warming, differential cooling between clear and cloudy regions, and domain-wide cooling.

Matthew D. Parker - One of the best experts on this subject based on the ideXlab platform.

  • numerical simulations of bow echo formation following a Squall Line supercell merger
    Monthly Weather Review, 2014
    Co-Authors: Adam J. French, Matthew D. Parker
    Abstract:

    AbstractOutput from idealized numerical simulations is used to investigate the storm-scale processes responsible for Squall-Line evolution following a merger with an isolated supercell. A simulation including a Squall Line–supercell merger is compared to one using the same initial Squall Line and background environment without the merger. These simulations reveal that while bow echo formation is favored by the strongly sheared background environment, the merger produces a more compact bowing structure owing to a locally enhanced rear-inflow jet. The merger also represents a favored location for severe weather production relative to other portions of the Squall Line, with surface winds, vertical vorticity, and rainfall all being maximized in the vicinity of the merger.An analysis of storm-scale processes reveals that the premerger Squall Line weakens as it encounters outflow from the preLine supercell, and the supercell becomes the leading edge of the merged system. Subsequent localized strengthening of th...

  • Numerical Simulations of Bow Echo Formation Following a Squall Line–Supercell Merger
    Monthly Weather Review, 2014
    Co-Authors: Adam J. French, Matthew D. Parker
    Abstract:

    AbstractOutput from idealized numerical simulations is used to investigate the storm-scale processes responsible for Squall-Line evolution following a merger with an isolated supercell. A simulation including a Squall Line–supercell merger is compared to one using the same initial Squall Line and background environment without the merger. These simulations reveal that while bow echo formation is favored by the strongly sheared background environment, the merger produces a more compact bowing structure owing to a locally enhanced rear-inflow jet. The merger also represents a favored location for severe weather production relative to other portions of the Squall Line, with surface winds, vertical vorticity, and rainfall all being maximized in the vicinity of the merger.An analysis of storm-scale processes reveals that the premerger Squall Line weakens as it encounters outflow from the preLine supercell, and the supercell becomes the leading edge of the merged system. Subsequent localized strengthening of th...