2020 IMPACTS 2DS Individual Particle Measurements, Habits, and Size Distributions

Morphological measurements for particles detected by the horizontal channel of the 2-Dimensional Stereo Probe (2DS) during seven flights of the 2020 IMPACTS field campaign, in netCDF format. Some flights have multiple files. Files ending in H_1.nc are individual particle files, while files ending in H.2DS.nc are size distribution files. The numbers in all filenames represent the file start times, in format YYMMDDHHMMSS (in UTC). The individual particle data files include habit classifications as were used in Schima et al. 2024 (citation pending publication), and similarly, habit size distributions are available within the size distribution files. These files were created using University of Illinois/Oklahoma Optical Array Probe Processing Software (UIOPS, https://doi.org/10.5281/zenodo.1285968).

Some additional notes on habits

The size distribution files have a "habit" dimension of length 10. Along this dimension, indices in the files correspond to the following habits:

0: sphere

1: column/needle

2: rejected

3: tiny

4: plate

5: irregular

6: graupel

7: dendrite

8: aggregate

9: center-out

The individual particle files have numeric codes for various habits. These codes refer to the following habits:

77: missing

67: center-out

116: tiny

111: rejected

108: column/needle

97: aggregate

103: graupel

115: sphere

104: plate105: irregular100: dendrite