표제지
초록
목차
제1장 서론 6
제2장 DFS 방법 소개 및 비교 10
제3장 실험 설계 14
제1절 실험1: 3D deformational tracer transport 14
제2절 실험2: Dry baroclinic wave development 15
제4장 실험 결과 17
제1절 실험1 17
제2절 실험2 18
제3절 모델 실행 시간 21
제4절 토의 23
제5장 요약 및 제언 26
참고 문헌 29
Abstract 43
Table 1. Normalized error norms for the idealized tracer field at day 12, simulated from the SPH, DFS_1, and DFS_2 runs at T126L30 resolution. 33
Table 2. Same as Table 1 but ratio of the area with negative values to the total area at day 6 and 12. 34
Table 3. The global maximum (max) and minimum (min) of 850-hPa meridional wind speed (V₈₅₀; m s¯¹), 850-hPa geopotential height (Z₈₅₀; m), and 850-hPa... 35
Table 4. Comparison of wall-clock time (in second) required for 15-day forecast in the SPH, DFS_1, and DFS2 runs at the resolutions of T126, T254, and T510. The... 36
Fig. 1. Schematic diagram for the discretized Fourier transformation process from physical space to wave space in the (a) DFS_1 and (b) DFS_2. 37
Fig. 2. Comparison of reconstructed functions by the DFS_1 (red) and DFS_2 (blue) runs for the shapes of (a) normal cosine function, (b) trigonometric function... 38
Fig. 3. Tracer field at day (a-c) 6 and (d-f) 12 for the idealized 3D deformational flow, simulated by the (a,d) SPH, (b,e) DFS_1, and (c,f) DFS_2 runs at T126L30 resolution. 39
Fig. 4. (a-c) 850-hPa temperature zonal eddy (K), (d-f) 850-hPa meridional wind speed (m s¯¹), and (g-h) surface pressure (hPa) at day 10 for the dry baroclinic wave... 40
Fig. 5. Same as Fig. 4 but at T510L30 resolution. 41
Fig. 6. (a,d,g) 850-hPa meridional wind speed (m s¯¹), (b,e,h) 850-hPa geopotential height (m), and (c,f,i) 850-hPa temperature (K) at day 10 for the dry baroclinic... 42