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NSF/NCAR GV HIAPER SMPS Particle Size Distributions 5nm-100nm Data


This data set contains NSF/NCAR GV HIAPER SMPS Particle Size Distributions 5nm-100nm Data collected during the Deep Convective Clouds and Chemistry Experiment (DC3) from 14 May 2012 through 30 June 2012. This data set is in ICARTT format. Please see the header portion of the data files for details on instruments, parameters, quality assurance, quality control, contact information, and data set comments.

The scanning mobility particle sizer (SMPS) counts particles in certain mobility size bins between approximately 8 nm up and 110 nm.
We don't specify the diameters in our SMPS.  Rather, we set a minimum voltage and a maximum voltage in our DMA (typically 13-3000 V for DC3).  From those voltage limits, our program divides the spacing into a constant.  But the actual mobility diameters depend on the pressure, temperature, sheath flow rate in addition to the DMA voltage. 

Data access

  • ORDER data for delivery by FTP

Additional information

Data Quality final
  • 1.0 (2013-08-08)
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Related projects
Spatial Type point
Frequency continuous
Language English
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2012-05-14 00:00:00
End datetime 2012-06-30 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 42.06574, Minimum (South) Latitude: 24.96023
Minimum (West) Longitude: -106.76535, Maximum (East) Longitude: -84.94339

Primary point of contact information

EOL Data Support <>

Additional contact information


Example citation following ESIP guidelines:

UCAR/NCAR - Earth Observing Laboratory. 2013. NSF/NCAR GV HIAPER SMPS Particle Size Distributions 5nm-100nm Data. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 04 Dec 2020.

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