Table 1 Summary of nominal models
Altitude (km) | Condition | Value |
|---|---|---|
40 | Acid vapor | 10 ppmv |
40 | Water vapor | 30 ppmv |
40 | CCN (involatile) | (Lognormal) N tot = 200 cm3, \(r_m=0.125\,\upmu \hbox {m},\, \ln {\sigma }=2.16\) |
40 | Droplets | 0 |
60 | Acid vapor | Constant supersaturation across boundary |
60 | Water vapor | 1 ppmv |
60 | CCN | 0 |
60 | Droplets | (Lognormal) \(N_{\mathrm{tot}}=600\,\hbox {cm}^{-3}\) \(0.175\,\upmu \hbox {m}\), \(\ln {\sigma }=2.16\), (Normal) \(N_{\mathrm{tot}}\)=80 cm\(^{-3}\) \(1.14\,\upmu \hbox {m}\), \(\sigma =1.4\,\upmu \hbox {m}\) |
80 | Acid vapor | Constant supersaturation |
80 | Water vapor | Constant mixing ratio |
80 | Particles | 0 |
All | T, P, \(\rho\) | VIRA at five latitudes |
40–48 | \(K_{\mathrm{diff}}\) | 10 m\(^2\)/s |
48–54 | \(K_{\mathrm{diff}}\) | Gaussian [see James et al. (1997)] |
54–57 | \(K_{\mathrm{diff}}\) | Gaussian [see James et al. (1997)] |
57–80 | \(K_{\mathrm{diff}}\) | 2 m\(^2\)/s |