Ice-Nucleating Particle (INP) Timeseries
https://data.eol.ucar.edu/dataset/648.010

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.

Identifiers
 * Local archive identifier: 648.010
 * doi:10.26023/P4PD-A63W-3A0V
   https://doi.org/10.26023/P4PD-A63W-3A0V

Versions
  1.0
  1.1: 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.

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 02 May 2026.

Additional citation styles can be generated by entering the DOI
at CrossCite (https://citation.doi.org/).

Acknowledgement
In addition to the citation reference and any other acknowledgements,
please acknowledge NSF NCAR EOL in your publications with text such as:

  Data provided by NCAR EOL under the sponsorship of
  the National Science Foundation.
  https://data.eol.ucar.edu/

Related projects
 * BACS: BioAerosols and Convective Storms
   https://data.eol.ucar.edu/project/BACS

Additional information
 * Frequency: criteria
 * Language: English

Grant Code
AGS-2105938 and AGS-2106370

Platforms
 * Field Sites

Instruments
 * CFDC - Continuous Flow Diffusion Chamber

GCMD Science Keywords
 * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > ICE NUCLEI

Documentation
 * BACS_INP_Timeseries_readme_1_1.pdf [86 KiB]
   https://data.eol.ucar.edu/file/download/55A1467D089EB/BACS_INP_Timeseries_readme_1_1.pdf

Related links
 * info: BACS Data Policy
   https://www.eol.ucar.edu/node/31993
 * homepage: BACS Project Page
   https://www.eol.ucar.edu/field_projects/bacs

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

Spatial coverage
 * Maximum (North) Latitude: 40.8155
 * Minimum (South) Latitude: 40.8155
 * Minimum (West) Longitude: -104.7456
 * Maximum (East) Longitude: -104.7456

Primary contact information
 * pointOfContact: EOL Data Support <datahelp@eol.ucar.edu>
   https://data.eol.ucar.edu/contact/show/1

Additional contact information
 * author: Brian Heffernan
   https://data.eol.ucar.edu/contact/show/5198
 * author: Marina Nieto-Caballero
   https://data.eol.ucar.edu/contact/show/5209
 * author: Sue C. van den Heever <sue@atmos.colostate.edu>
   https://data.eol.ucar.edu/contact/show/2578
 * author: Leah Grant <leah.grant@colostate.edu>
   https://data.eol.ucar.edu/contact/show/5212
 * author: Elizabeth A. Stone <betsy-stone@uiowa.edu>
   https://data.eol.ucar.edu/contact/show/5213
 * author: Paul J. DeMott <Paul.Demott@colostate.edu>
   https://data.eol.ucar.edu/contact/show/2379
 * author: Sonia Kreidenweis <sonia@atmos.colostate.edu>
   https://data.eol.ucar.edu/contact/show/2420
 * author: Russell J. Perkins <russell.perkins@colostate.edu>
   https://data.eol.ucar.edu/contact/show/5146

Alternate metadata formats
 * DataCite: https://data.eol.ucar.edu/dataset/648.010?format=datacite
 * ISO/TC 211: https://data.eol.ucar.edu/dataset/648.010?format=isotc211