Skip to data content Skip to data search



This data set contains measurements of the cloud condensation nuclei (CCN) spectra with the original Desert Research Institue (DRI) airborne CCN spectrometer which was on board the NCAR C-130 aircraft. Data reported at this time are only for the three best gradient flights of Feb. 20, 24, and March 4. No additional quality control was performed by UCAR/JOSS.

Data access

  • ORDER data for delivery by FTP

Additional information

Data Quality final
  • 1.0 (2007-11-07)
Subscribe Subscribe to receive email when new or updated data is available.
Related projects
Spatial Type point
Frequency no set schedule
Language English
GCMD Science Keywords Expand keywords

Temporal coverage

Begin datetime 1999-02-20 00:00:00
End datetime 1999-03-04 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 4.00, Minimum (South) Latitude: -9.00
Minimum (West) Longitude: 73.00, Maximum (East) Longitude: 73.00

Primary point of contact information

James G. Hudson <>

Additional contact information


Example citation following ESIP guidelines:

Hudson, J., Yum, S., Desert Research Institute. 2007. INDOEX: NSF/NCAR C-130 CCN Data. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 09 Dec 2023.

Today's date is shown: please replace with the date of your most recent access.

Additional citation styles

The citation text below is from the DataCite Content Resolver service and may take a few seconds to load. The styles and locales are obtained from CrossCite, which also provides a citation formatter. See ReFindit for another alternative. Formatting is not perfect: please verify and edit before use. Today's date is shown: please replace with the date of your most recent access.

Style: Locale:

Ancillary information

Metadata download

Note that your browser may not display the above metadata links, but automatically save them as files in a folder such as "Downloads"