The SPectrometer for Ice Nuclei (SPIN): an instrument to investigate ice nucleation
Name
Cziczo_The SPectrometer.pdf
Size
5.99 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Kristensen, Thomas Bjerring
Ignatius, Karolina
Welti, Andre
Voigtländer, Jens
Kulkarni, Gourihar R.
Sagan, Frank
Kok, Gregory Lee
Dorsey, James
Nichman, Leonid
Kirchgäßner, Amélie Catharina Ruth
Date Issued
February 2016
Journal
Atmospheric Measurement Techniques
Publisher
Copernicus GmbH
Citation
Garimella, Sarvesh et al. “The SPectrometer for Ice Nuclei (SPIN): An Instrument to Investigate Ice Nucleation.” Atmospheric Measurement Techniques 9.7 (2016): 2781–2795. © 2016 ESO
Version
Final published version
Abstract
The SPectrometer for Ice Nuclei (SPIN) is a commercially available ice nucleating particle (INP) counter manufactured by Droplet Measurement Technologies in Boulder, CO. The SPIN is a continuous flow diffusion chamber with parallel plate geometry based on the Zurich Ice Nucleation Chamber and the Portable Ice Nucleation Chamber. This study presents a standard description for using the SPIN instrument and also highlights methods to analyze measurements in more advanced ways. It characterizes and describes the behavior of the SPIN chamber, reports data from laboratory measurements, and quantifies uncertainties associated with the measurements. Experiments with ammonium sulfate are used to investigate homogeneous freezing of deliquesced haze droplets and droplet breakthrough. Experiments with kaolinite, NX illite, and silver iodide are used to investigate heterogeneous ice nucleation. SPIN nucleation results are compared to those from the literature. A machine learning approach for analyzing depolarization data from the SPIN optical particle counter is also presented (as an advanced use). Overall, we report that the SPIN is able to reproduce previous INP counter measurements.
MIT Department
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Terms of Use
Creative Commons Attribution 3.0 License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.5194/amt-9-2781-2016
