Table 1.
Propagation of the calculations from the satellite retrievals to the resultant CCN(S)
Symbol | Parameter and unit | Source of calculation | Error |
re | cloud drop effective radius, μm | satellite retrieval | 8% |
T | cloud surface temperature, °C | satellite retrieval | 0.2 °C |
Tb | cloud base temperature, °C | satellite retrieval | 1.1 °C |
Pb | cloud base pressure, hPa | Tb + reanalysis | 15 hPa |
rv | drop mean volume radius, μm | re (Eq. 3) | 8% |
LWCa | cloud adiabatic water, g⋅kg−1 | T + Tb + Pb (parcel) | 15% |
Nd | cloud base drop concentrations, cm−3 | rv(T) + LWCa(T) (Eq. 2) | 30% |
Hb | cloud base height above surface, m | Tb + reanalysis | 150 m |
Wb | cloud base updraft, m⋅s−1 | Hb (Eq. 5) | 27% |
S | cloud base max supersaturation, % | Tb, Pb, Wb, Nd (Eq. 1) | 25% of S in percent |
NCCN(S) | CCN at cloud base, cm−3 | Nd, S by definition | 30% |