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CG_WaveS: Fast 2D-S Data and Imagery

Summary

A 2D-S instrument is a cloud particle probe that contains two orthogonal open path optical array probes, which image cloud particles between about 10 microns - 2 mm in size as they pass through the instrument sample volume. This imagery is used to calculate the concentration and cross-sectional area size distributions, and to estimate the mass size distribution of the observed cloud particles. These variables are integrated across the size bins to obtain the total concentration, extinction, and estimated total water content over the observed size range, and is provided at a frequency of 1 Hz. The particle imagery can be utilized to infer cloud particle phase. This data does not cover the full size range of cloud particles, and should be analyzed in conjunction with complementary cloud probes, such as the CDP, HVPS, etc. This dataset contains Fast 2D-S data and imagery collected aboard the NCAR GV during the CGWaveS project.

Data access

ORDER data to made available for download

authorization required
user agreement required

Additional information

Identifier	DOI: https://doi.org/10.26023/18VX-A3GC-PC0A
Data Quality	final
Versions	1.0 (2025-12-15)
Subscribe	Subscribe to receive email when new or updated data is available.
Related projects	CG_WaveS: Convective Gravity Waves in the Stratosphere
Spatial Type	point
Frequency	1 second
Language	English
Categories	Aircraft
Platforms	NSF/NCAR GV HIAPER
Instruments	2DS - 2D-Stereo Particle Probe Fast-2DS
GCMD Science Keywords	CLOUD DROPLET CONCENTRATION/SIZE CLOUD DROPLET DISTRIBUTION CLOUD LIQUID WATER/ICE HYDROMETEORS PARTICLE SIZE DISTRIBUTION Expand keywords
Documentation	README_CGWaveS_F2DS.pdf [55 KiB]
Restrictions	authorization required user agreement required: EULA.html [0 KiB]

Temporal coverage

Begin datetime	2025-05-21 00:00:00
End datetime	2025-06-13 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 48.30, Minimum (South) Latitude: 30.20
Minimum (West) Longitude: -111.00, Maximum (East) Longitude: -82.30

Primary point of contact information

EOL Data Support <datahelp@eol.ucar.edu>

Additional contact information

author: Sarah Woods <sfwoods@ucar.edu>

Citation

Woods, S. 2025. CG_WaveS: Fast 2D-S Data and Imagery. Version 1.0. null. https://doi.org/10.26023/18VX-A3GC-PC0A. Accessed 07 Feb 2026.

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