Extended Abstract (164K)P3.6
OSSEs for realistic DWL concepts: Impacts on hurricane track forecasts
George D. Emmitt, Simpson Weather Associates, Charlottesville, VA; and S. Wood, S. Greco, R. M. Atlas, and J. Terry
NASA and the IPO of NPOESS have been conducting a series of Observing System Simulation Experiments (OSSEs) for advanced orbiting sounders, including a future Doppler Wind Lidar (DWL). Until recently, the experiments have used idealized or notional DWL concepts to investigate the potential impact on global analyses and forecasts. A new series of OSSEs is now underway to use simulated data for realistic or technologically feasible DWL systems. The realistic set of DWL concepts include a direct detection lidar only, a coherent detection lidar only and a hybrid DWL using both detection schemes. A traditional metric for expressing a data impact on a global model has been the anomaly correlation. Given that the significant impacts of a space-based wind lidar are expected to be associated with regions of high ageostrophy, several other impact metrics have been selected, one of which is the hurricane track prediction. The presentation will focus on illustrating and discussing the potential impact such DWL observations might have on hurricane track forecasts.
Poster Session 3, Poster Session 3
Wednesday, 12 January 2005, 2:30 PM-4:00 PM
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