Palas Cloud Droplet Analyzer (CDA) Data
https://data.eol.ucar.edu/dataset/646.023

Summary
High-resolution measurements of the size distribution and number concentration
of cloud aerosols from the Palas Cloud Droplet Analyzer (CDA) that was
deployed on the exterior of the top deck of the Storm Peak Laboratory near
Steamboat Springs, Colorado for the S2noCliME (Snow Sensitivity to Clouds in a
Mountain Environment) campaign.

Identifiers
 * Local archive identifier: 646.023
 * doi:10.26023/424B-YFAQ-TG0Y
   https://doi.org/10.26023/424B-YFAQ-TG0Y

Versions
  1.0: Final processed data.

Citation
 Hallar, A., et al. 2026. S2noCliME: Palas Cloud Droplet Analyzer (CDA) Data.
 Version 1.0. NSF NCAR Earth Observing Laboratory.
 https://doi.org/10.26023/424B-YFAQ-TG0Y Accessed 17 Jun 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
 * S2noCliME: Snow Sensitivity to Clouds in a Mountain Environment
   https://data.eol.ucar.edu/project/S2noCliME

Additional information
 * Spatial Type: point
 * Frequency: continuous
 * Language: English

Grant Code
NSF award 2348449

Platforms
 * Fixed Observation Stations

Instruments
 * CDA - Cloud Droplet Analyzer
 * Spectrometers

GCMD Science Keywords
 * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD DROPLET DISTRIBUTION
 * EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES > AEROSOL SIZE DISTRIBUTION
 * EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES
 * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD DROPLET CONCENTRATION/SIZE
 * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > PARTICLE SIZE DISTRIBUTION
 * EARTH SCIENCE > ATMOSPHERE > WEATHER EVENTS > SNOW STORMS

Documentation
 * README.md [9 KiB]
   https://data.eol.ucar.edu/file/download/55F85C7E61361/README.md

Temporal coverage
 * Begin datetime: 2025-02-20 00:00:00 
 * End datetime: 2025-03-25 23:59:59 

Spatial coverage
 * Maximum (North) Latitude: 40.455
 * Minimum (South) Latitude: 40.455
 * Minimum (West) Longitude: -106.744
 * Maximum (East) Longitude: -106.744

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

Additional contact information
 * author: Anna Gannet Hallar <Gannet.Hallar@utah.edu>
   https://data.eol.ucar.edu/contact/show/5251
 * author: Ian McCubbin <ian.mccubbin@utah.edu>
   https://data.eol.ucar.edu/contact/show/5314
 * author: Joseph Bail <joey.bail@utah.edu>
   https://data.eol.ucar.edu/contact/show/5315
 * author: Annegret Lang <annegret.lang@utah.edu>
   https://data.eol.ucar.edu/contact/show/5331

Alternate metadata formats
 * DataCite: https://data.eol.ucar.edu/dataset/646.023?format=datacite
 * ISO/TC 211: https://data.eol.ucar.edu/dataset/646.023?format=isotc211