Research Article
Impact of Parameterization of Physical Processes on Simulation of Track and Intensity of Tropical Cyclone Nargis (2008) with WRF-NMM Model
Table 2
Mean absolute track errors (km) with two optimum physics combinations with different initial conditions.
| Initial conditions | Land surface | 00 hr | 12 hrs | 24 hrs | 36 hrs | 48 hrs | 60 hr | 72 hrs | 84 hrs | 96 hrs |
| 1200 UTC 28 Apr 08 | NMM | 118.68 | 145.58 | 22.28 | 33.97 | 68.96 | 57.90 | 54.00 | 77.90 | 144.4 | 0000 UTC 29 Apr 08 | 185.75 | 75.73 | 55.06 | 101 | 10.71 | 53.44 | 42.75 | 53.44 | 63.8 | 1200 UTC 29 Apr 08 | 31.78 | 19.76 | 170.6 | 61.33 | 106 | 106.8 | 15.4 | 76.8 | | 0000 UTC 30 Apr 08 | 59.61 | 204.7 | 54.85 | 88.95 | 55.5 | 0.0 | 0.0 | | | 1200 UTC 30 Apr 08 | 38.8 | 77.25 | 39 | 69.57 | 22.23 | 43.35 | | | |
| Mean error | | 86.924 | 104.604 | 68.358 | 70.964 | 52.68 | 52.298 | 28.0375 | 69.38 | 104.1 |
| 1200 UTC 28 Apr 08 | NOAH | 118.68 | 192.93 | 95 | 73.67 | 109.65 | 172.84 | 64.75 | 87.76 | 150.24 | 0000 UTC 29 Apr 08 | 185.75 | 45.37 | 96.91 | 56.67 | 29.62 | 88.29 | 47.87 | 71.24 | 120.11 | 1200 UTC 29 Apr 08 | 31.78 | 9.29 | 160.48 | 81.62 | 78 | 88.4 | 54.46 | 46.1 | | 0000 UTC 30 Apr 08 | 59.61 | 204.7 | 54.85 | 91.5 | 59.5 | 0.0 | 0.0 | | | 1200 UTC 30 Apr 08 | 38.8 | 93.43 | 39 | 69.57 | 22.23 | 43.35 | | | |
| Mean error | | 86.924 | 109.144 | 89.248 | 74.606 | 59.8 | 78.576 | 41.77 | 68.367 | 135.175 |
| % of improvement | | 0 | 4.34 | 30.6 | 5.1 | 13.5 | 50.3 | 49 | −1.4 | 30 |
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