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SOCRATES CCN measurements

Summary

This data set contains Cloud Concentration Nuclei (CCN) data from the two miniaturized CCN counters (mCCNc) that were operated by the Scripps Institution of Oceanography on-board the NSF/NCAR GV HIAPER aircraft during SOCRATES. They provide measurements of the horizontal and vertical spatial variability of CCN number concentrations, CCN spectra, and aerosol hydroscopicity. One mCCNc was at a fixed supersaturation for high spatial resolution and the second was operated at a range of supersaturation values to retrieve the CCN spectra. These data are in ICARTT format.

Data access

ORDER data to made available for download

Additional information

Identifier	DOI: https://doi.org/10.5065/D6Z036XB
Data Quality	final
Versions	0.1 (2018-03-09) 1.0 (2018-05-02) 1.1 (2018-05-04): This version fixes a bug that impacted the displayed date for the data when the original netcdf file started before 00 UTC, but the CCNC was turned on after 00 UTC. (Only the current version of the data is available to order. If you have questions about a prior version, please email us.)
Subscribe	Subscribe to receive email when new or updated data is available.
Related projects	SOCRATES: Southern Ocean Clouds Radiation Aerosol Transport Experimental Study
Frequency	10 second
Language	English
Categories	Aerosols Aircraft
Platforms	NSF/NCAR GV HIAPER
Instruments	CCN - Cloud Condensation Nuclei Counter
GCMD Science Keywords	AEROSOL PARTICLE PROPERTIES CLOUD CONDENSATION NUCLEI CLOUD CONDENSATION NUCLEI Expand keywords
Documentation	ReadMe_CCN_SOCRATES.pdf [265 KiB]
Related links	info: SOCRATES Missions

Temporal coverage

Begin datetime	2018-01-15 22:54:00
End datetime	2018-02-24 23:53:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: -42.50, Minimum (South) Latitude: -62.10
Minimum (West) Longitude: 133.80, Maximum (East) Longitude: 163.10

Primary point of contact information

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

Additional contact information

pointOfContact: Kevin J. Sanchez <kjsanche@ucsd.edu>
author: Kevin J. Sanchez <kjsanche@ucsd.edu>
author: Gregory C. Roberts <gcroberts@ucsd.edu>

Citation

Sanchez, K., Roberts, G. 2018. SOCRATES CCN measurements. Version 1.1. null. https://doi.org/10.5065/D6Z036XB. Accessed 14 Jan 2026.

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