Research Article

Improved Doppler Velocity Dealiasing for Radar Data Assimilation and Storm-Scale Vortex Detection

Table 1

Numbers of raw data (column 2), seed data (column 3), one-way special data (column 4), one-way dealiased data (column 5), final dealiased data (column 6), and falsely dealiased data (column 7) are produced by the three methods (column 1) for the case in Figure 2. The percentage with respect to the total number of raw data is also listed below the number in each type of data in the same box. “Seed data” are dealiased data produced by the reference check alone. “One-way special data” are special data identified by the first one-way forward procedure (see the flowchart in Figure 3(b)) in the continuity check. “One-way dealiased” data are dealiased data produced by the first one-way forward procedure in the continuity check. All “dealiased” data include de-flagged nonaliased data.

MethodRaw data Seed data One-way special dataOne-way dealiasedFinal dealiasedFalsely dealiased

AR-VAD-based12097131882
26.36%
N/A90191
74.56%
N/A0
New AR-Var-based12097133922
28.04%
10593
8.75%
92028
76.07%
101200
83.66%
0
Model + AR-Var-based120971104436
86.33%
6579
5.44%
113712
94.00%
119964
99.17%
0