Yongsheng Chen

TL;DR: This paper used the Advanced Hurricane WRF (AHW) model to forecast five landfalling Atlantic hurricanes during 2005 using the Advanced Research Weather Research and Forecasting (WRF) Model at grid spacings of 12 and 4 km revealed performance generally competitive with, and occasionally superior to, other operational forecasts for storm position and intensity.

TL;DR: An overview of the scientific capabilities of WRFDA is provided, and together with results from sample operation implementations at the U.S. and international levels, the challenges associated with balancing academic, research, and operational data assimilation requirements in the context of the WRF effort to date are discussed.

TL;DR: WRF 4D-Var uses the WRF model as a constraint to impose a dynamic balance on the assimilation and is shown to implicitly evolve the background error covariance and to produce the flow-dependent nature of the analysis increments.

TL;DR: In this article, a large-eddy simulation of an idealized tropical cyclone was performed using the Advanced Research Weather Research and Forecasting (ARW) model, using six nested grids centered on the TC.

TL;DR: The assimilation of observations of the vortex shape and intensity, along with position, extends the technique’s effectiveness to larger displacements of the forecasted vortices and shows that the track forecast initialized with the EnKF analysis is improved.