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Earth Observing Laboratory
Field Data Archive

BACS: Ice-Nucleating Particle (INP) Timeseries

Summary

Processed measurements of real-time INP concentration measurements at fixed measurement temperature and supersaturation collected by the Colorado State University Continuous Flow Diffusion Chamber (CSU-CFDC) for selected intensive operating periods during the BioAerosols and Convective Storms (BACS)-II field campaign.

Data access

  • ORDER data to made available for download

Additional information

Identifier
Data Quality final
Versions
  • 1.0 (2025-06-17)
  • 1.1 (2025-09-09):

    Previous version (1.0) files did not generate properly, resulting in missing data. Additionally, a small correction was applied to fix measurement STP conditions to the listed 101.325 kPa and 0°C reference – previous measurements referenced 25°C resulting in ~8% decreased concentrations in this revision.

(Only the current version of the data is available to order. If you have questions about a prior version, please email us.)
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Related projects
Frequency criteria
Language English
Grant Code AGS-2105938 and AGS-2106370
Platforms
Instruments
GCMD Science Keywords Expand keywords
Documentation
Related links

Temporal coverage

Begin datetime 2023-05-24 00:00:00
End datetime 2023-06-21 23:59:59

Spatial coverage


Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 40.8155, Minimum (South) Latitude: 40.8155
Minimum (West) Longitude: -104.7456, Maximum (East) Longitude: -104.7456

Primary point of contact information

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

Additional contact information

Citation

Heffernan, B., et al. 2025. BACS: Ice-Nucleating Particle (INP) Timeseries. Version 1.1. NSF NCAR Earth Observing Laboratory. https://doi.org/10.26023/P4PD-A63W-3A0V. Accessed 21 Apr 2026.

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NSF

This material is based upon work supported by the NSF National Center for Atmospheric Research, a major facility sponsored by the U.S. National Science Foundation and managed by the University Corporation for Atmospheric Research. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the U.S. National Science Foundation.