Analysis of Sub-Grid Boundary-Layer Processes Observed by the P-3 Doppler Wind Lidar in Support of the Western Pacific Tropical Cyclone Structure 2008 Experiment

摘要

A major field program to study tropical cyclones in the Western Pacific was conducted as part of the THORPEX Pacific-Asian Regional Campaign (T- PARC). The tropical cyclone portion of the experiment was called the Tropical Cyclone Structure 2008 (TCS-08) Experiment. The goals of TCS-08 were to study the mechanisms of genesis, development, and extra-tropical transition of Western Pacific tropical cyclones. A major goal of this research was to investigate how well the Doppler Wind Lidar (DWL) installed on the NRL P-3 aircraft performed in the severe weather conditions. A second important goal was to assess the atmospheric boundary wind retrievals obtained from the DWL and to use these data for research into PBL dynamics in tropical cyclone conditions. After the field program, the primary objective was to assess the quality of the data. Dropsondes from a P-3 aircraft were the validation data set. Once a research quality data set was produced, the data were used to study the mean flow in the boundary layer and in numerical model data assimilation experiments.