PhD Proposal: Sharad Pandey
Location
Physics : 401
Date & Time
October 17, 2024, 10:00 am – 12:00 pm
Description
ADVISOR: Dr. Belay Demoz
TITLE: DYNAMICS AND THERMODYNAMICS OF PLANETARY BOUNDARY LAYER HEIGHT FOR LLJ EVENTS: MODEL AND OBSERVATION
ABSTRACT: The Great Plains low-level jet(LLJ) is a nightly weather phenomenon in which strong winds, up to 30 m/s, within the first few hundred meters of the ground are observed. These powerful diurnal jets, which may last up to 12 hours and cover large areas, often begin as southerly winds and progressively change westerly with time and altitude. The LLJ transports moisture and warm airnorthward, bringing roughly half of the summer season's moisture to the Southern GreatPlains (SGP). Similar wind patterns can be found in the Mid-Atlanticregion, where they influence heat and pollution transmission near the ground, making them important for human health. Accurate formulation of the theory of their evolution and forecast model evaluation of LLJ as well as their modification of the lower troposphere is an active research focus at present. This study will explore how well our instrument suite captures evolution, explore the skill of model forecasting and attempt at applying existing theory to both the SGP and mid-Atlantic regions.
TITLE: DYNAMICS AND THERMODYNAMICS OF PLANETARY BOUNDARY LAYER HEIGHT FOR LLJ EVENTS: MODEL AND OBSERVATION
ABSTRACT: The Great Plains low-level jet(LLJ) is a nightly weather phenomenon in which strong winds, up to 30 m/s, within the first few hundred meters of the ground are observed. These powerful diurnal jets, which may last up to 12 hours and cover large areas, often begin as southerly winds and progressively change westerly with time and altitude. The LLJ transports moisture and warm airnorthward, bringing roughly half of the summer season's moisture to the Southern GreatPlains (SGP). Similar wind patterns can be found in the Mid-Atlanticregion, where they influence heat and pollution transmission near the ground, making them important for human health. Accurate formulation of the theory of their evolution and forecast model evaluation of LLJ as well as their modification of the lower troposphere is an active research focus at present. This study will explore how well our instrument suite captures evolution, explore the skill of model forecasting and attempt at applying existing theory to both the SGP and mid-Atlantic regions.
