Data of "Towards a More Reliable Forecast of Ice Supersaturation: Concept of a One-Moment Ice Cloud Scheme that Avoids Saturation Adjustment"

These are the data used for generating the figures in the ACP article "Towards a More Reliable Forecast of Ice Supersaturation: Concept of a One-Moment Ice Cloud Scheme that Avoids Saturation Adjustment" by Sperber and Gierens.

The data sets labeled "Box" have been generated by the stochastic box model, "adj" refers to the parameterisation using saturation adjustment and data labeled "par" originate from the newly developed parameterisation.

The label "const" followed by a number refers to simulations with a constant updraught of the speed specified by the number in cm/s. The label "cos" refers to the simulations in which the updraught velocity follows a cosine function in time.

"a10" labels simulations with less initial clear sky humidity fluctuations of plus/minus 10% instead of plus/minus 25%. "al0028" labels simulations with a higher deposition rate of 0.0028 1/s instead of 0.0003 1/s. "step10" labels simulations with a longer time step of 10 minutes instead of 1 minute.

"Box_const2_rh1.txt" contains data from a simulation similar to "Box_const2.txt" but with an initial mean relative humidity of 100% instead of 110%. "Box_het.txt" contains data from a simulation including heterogeneous nucleation. "Box_slow_nuc.txt" contains data from a simulation where the deposition rate increases over time from zero after nucleation in every air parcel. "Box_upvar.txt" contains data from a simulation, where the updraught velocity in every air parcel varies randomly between 1 cm/s and 3 cm/s and the deposition rate inside the air parcel depends on the updraught velocity at the time of nucleation.

The columns in the "Box" files represent from left to right:

1. Time since the simulation start in s

2. Cloud fraction

3. Mean relative humidity across all air parcels

4. Mean specific humidity across all air parcels

5. Mean specific ice content across all air parcels

6. Mean relative humidity across all cloudy air parcels

7. Mean relative humidity across all clear air parcels

8. Mean equilibrium supersaturation

9. Mean threshold relative humidity for homogeneous nucleation

10. Mean deposition rate across all cloudy air parcels

11. Mean updraught velocity

The columns in the "adj" files represent from left to right:

1. Time since the simulation start in s

2. Cloud fraction

3. Mean relative humidity

4. Mean specific humidity

5. Mean specific ice content

6. In-cloud Humidity

7. Clear sky humidity

The columns in the "par" files represent from left to right:

1. Time since the simulation start in s

2. Cloud fraction

3. Mean relative humidity

4. Mean specific humidity

5. Mean specific ice content

6. In-cloud Humidity

7. Clear sky humidity

8. Obsolete

9. Equilibrium supersaturation