4D-Var Assimilation of Radar, Satellite, and Targeted in situ Observations for Hurricane Prediction Near Landfall

这项研究将评估使用雷达、卫星和有针对性的现场数据对登陆附近飓风的预报的单独和综合影响。具体而言，这项研究将涉及：1)制定方法，以同化在实地试验期间收集的机载多普勒雷达观测，并评估对飓风强度、核心结构、风和降水的预测的影响；2)评估卫星数据对路径和强度变化的预测的影响；3)研究飓风预报初始化的可能目标战略，结合“定向”的现场观测(飞机落下探测仪和船舶测量)；以及4)对眼睛区域的动态和促成飓风运动及其增强和减弱的过程的模型研究。

This research will assess the individual and combined effects of the use of radar, satellite and targeted in situ data on forecasts of hurricanes near landfall. Specifically, the research will involve: 1) development of methodology to assimilate airborne Doppler radar observations collected during field experiments and to assess the effect on the prediction of hurricane intensity, inner core structure, wind, and precipitation, 2) assessment of the effect of satellite data on the prediction of track and intensity changes, 3) study of the possible targeting strategy for the initialization of hurricane prediction which combines "targeted" in situ observations (aircraft dropsondes and ship measurements, and 4) model study of the dynamics of the eye region and the processes contributing to hurricane motion and its intensification and weakening.