Research Article
Reconstruction of Typhoon Structure Using 3-Dimensional Doppler Radar Radial Velocity Data with the Multigrid Analysis: A Case Study in an Idealized Simulation Context
Table 1
Root mean square errors (RMSE) of , , and component in different experiments. MG_RADAR represents the STMAS results by only assimilating radial wind data. MG_COARSE represents the STMAS results by assimilating only coarse conventional data. MG_RADAR_COARSE represents the STMAS results by assimilating both radial wind data and coarse conventional data. MG_MODERATE and MG_RADAR_MODERATE are similar to MG_COARSE and MG_RADAR_COARSE but with the conventional data substituted by moderate conventional data. MG_DENSE and MG_RADAR_DENSE are similar to MG_COARSE and MG_RADAR_COARSE but with the conventional data substituted by dense conventional data. MG_RADAR_DENSE_WEAK is similar to MG_RADAR_DENSE but with weak constraint. T50_RADAR_DENSE represents the results of traditional 3D-Var with correlation scales being km, km, and km by assimilating both radial wind data and dense conventional data; T25_RADAR_DENSE is similar to T50_RADAR_DENSE but for km, km, and km; T12_RADAR_DENSE is similar to T50_RADAR_DENSE but for km, km, and km; T06_RADAR_DENSE is similar to T50_RADAR_DENSE but for km, km, and km.
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