Research Article

Indicators for the Compression and Stretching Characteristics of the HTF-Coordinate of WRF

Figure 4

The relationship between the difference of the partial derivative of the normalized pd with respect to eta and eta under different conditions of ps and eta_c: (a) eta_c = 0.2 and (b) eta_c = 0.3. pt equals 0.01.
(a)
(b)