Table 1 Overview of the operated instrument packages and the measured main quantities that are part of the data set.

Extended meteorological package (EP)

Radiosonde

DFM-17

GRAW

Temperature (T) Pressure (p) Relative humidity (RH)

−90 to +60 °C

1 to 1100 hPa

0 to 100%

0.2 °C

1 hPa

<3%

1 Hz

Pitot-static tube

custom

horizontal wind speed (u)

1.8 to 20 ms⁻¹

0.2 ms⁻¹

1 Hz

3-Axis compass

HMC6343

Honeywell

Wind direction (D)

0 to 360°

2°

1 Hz

Ultrasonic anemometer package (UP)

Ultrasonic anemometer

uSonic-3 Class A

Metek

3-d wind (u, v, w)

Virtual Temperature (T_V)

0 to 20 ms⁻¹

−35 to +55 °C

0.016 ms⁻¹

0.05 °C

50 Hz

Inertial measurement unit

iµVRU + iTILT

iMAR

Attitude and motion

0 to 100 ms⁻¹ 250° s⁻¹

0.1°

50 Hz

Broadband radiation package (BP)

Pyrgeometers (2x)

CGR4

Kipp&Zonen

Upward, downward terrestrial irradiance (TIR)

−250 to +250 Wm⁻²

λ = 4.5 to 42 μm

< ±7 Wm⁻²

12 Hz

Pyranometers (2x)

CMP3

Kipp&Zonen

Upward, downward solar irradiance (F)

0 to 2000 Wm⁻²

λ = 0.3 to 2.8 μm

<2 %

12 Hz

Cubic Aerosol Measurement Platform (CAMP)

Condensation Particle Counter (2x)

modified model 3007

TSI

Aerosol particle number concentration (N₈, N₁₂)

0 to 10⁵ cm⁻³

D_p = 0.008 to 2 μm

D_p = 0.012 to 2 μm

10 % at averaging time > 10 s

1 Hz

Optical particle size spectrometer

POPS

Handix

Aerosol particle number concentration (N₁₅₀) and size distribution

0 to 1200 cm⁻³

D_p = 0.15 to 2.9 μm

10 % at averaging time >10 s

1 Hz

Absorption photometer

STAP 9406

Brechtel

Aerosol particle light absorption coefficient (σ_abs)

> 0.2 Mm⁻¹

λ = 450, 525, 624 nm

0.2 Mm⁻¹ at averaging time > 60 s

1 Hz

Video Ice Particle Sampler (VIPS)

Video microscope

custom

Videos of cloud particles

D_p > 10 µm

12 Hz