FURTHER EXPLORING THE POTENTIAL FOR ASSIMILATION OF UNMANNED AIRCRAFT OBSERVATIONS TO BENEFIT HURRICANE ANALYSES AND FORECASTS

作     者：JASON ASIPPEL FUQING ZHANG YONGHUI WENG SCOTT ABRAUN DANIEL JCECIL 

作者机构：IM Systems GroupRockvilleMarylandUSA National Oceanographic and Atmospheric AdministrationEnvironmental Modeling CenterCollege ParkMarylandUSA Department of MeteorologyThe Pennsylvania State UniversityPennsylvaniaUSA Laboratory for AtmospheresNASA Goddard Space Flight CenterMarylandUSA NASA Marshall Space Flight CenterAlabamaUSA 

出 版 物：《Tropical Cyclone Research and Review》 (热带气旋研究与评论（英文版）)

年 卷 期：2015年第4卷第2期

页      面：64-70页

学科分类：07[理学] 08[工学] 0816[工学-测绘科学与技术] 081602[工学-摄影测量与遥感] 0706[理学-大气科学] 

基　　金：Funding for this work came the Hurricane and Severe Storm Sentinel Investigation under NASA’s Earth Venture Program from the NASA New Investigator Program 

主　　题：VWP FURTHER EXPLORING THE POTENTIAL FOR ASSIMILATION OF UNMANNED AIRCRAFT OBSERVATIONS TO BENEFIT HURRICANE ANALYSES AND FORECASTS 

摘      要：This study explores the potential of assimilating data from multiple instruments onboard high-altitude,longendurance unmanned aircraft to improve hurricane analyses and forecasts.A recent study found a signifi cant positive impact on analyses and forecasts of Hurricane Karl when an ensemble Kalman fi lter was used to assimilate data from the High-altitude Imaging Wind and Rain Airborne Profi ler(HIWRAP),a new Doppler radar onboard the NASA Global Hawk(GH)unmanned airborne system.The GH can also carry other useful instruments,including dropsondes and the Hurricane Imaging Radiometer(HIRAD),which is a new radiometer that estimates large swaths of wind speeds and rainfall at the ocean surface.The primary fi nding is that simultaneously assimilating data from HIWRAP and the other GH-compatible instruments results in further analysis and forecast improvement for Karl.The greatest improvement comes when HIWRAP,HIRAD,and dropsonde data are simultaneously assimilated.