Schedule

The campaign was split into 3 phases:

-Week 1: March 21- 25 : Installation of most instruments, first rough tests on the 24th and 25th.

-Week 2: March 28 – April 1st : First week of experiments. The setpoints were discussed daily among participants to optimized the simulated conditions.

-Week 3 : April 4 – 8 : Blind week of experiment. Setpoints are defined by the referee board, following the participants wishes, kept unknown to the participants.

During week 2, the conditions were as follow:

DateTemperature (K)Pressure (hPa)Volume mixing ratio (ppmv)
March 29221 – 227130213
23694
28969
49537
23738
28931
13835
March 30238-2441365.8
235310
287248
595119
181129
134137
90149
135101
March 31209723
1792
1628.8
3143.7
1344.7
895.9
449.7
1720
April 1195632.1
801.5
1610.6
1612
801.9

The lines with bold numbers correspond to conditions not used for scientific analysis. Only conditions characteristic to atmospheric conditions are considered, with the exception of low-ppm limits.

The experiments included 1h-long static conditions and dynamic transitions between static periods with pressurizing or pumping speed typical of balloon ascending or descending rate.

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