| Popis: |
We present our laboratory and field test results of a newly developed commercial ice nucleation chamber, the so-called PINE, for its semi-autonomous measurements of atmospheric ice-nucleating particles (INPs). The PINE instrument is developed based on the design of the AIDA cloud chamber (Möhler et al., 2003) to promote long-term ambient INP measurements even at a remote location. Unique features of the PINE instrument include its plug-and-play feature (so it runs on a standard power outlet), susceptivity to the INP detection for 0.2 – 50K L-1 STP in the ~0.7 – 220 mm size range (256 channels) with ~8 min time resolution, cryo-cooler-based automatic ramping-temperature operation, capability of quantifying INPs in different IN modes (e.g., immersion freezing and deposition mode at >-60 °C), and small particle loss through the system (~5% for Acknowledgement: This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research (DE-SC0018979) – work packages 1-2 of Implications of Aerosol Physicochemical Properties Including Ice Nucleation at ARM Mega Sites for Improved Understanding of Microphysical Atmospheric Cloud Processes.References:DeMott, P. J. et al.: Bull. Amer. Meteorol. Soc. 92, 1623, 2011. Hiranuma, N. et al.: Atmos. Chem. Phys., 15, 2489–2518, 2015. Hiranuma, N. et al.: Atmos. Meas. Tech., 9, 3817–3836, 2016. Marinescu, P. J., et al.: Atmos. Chem. Phys., 19, 11985–12006, 2019. Möhler, O. et al.: Atmos. Chem. Phys. 3, 211–223, 2003. Wex, H. et al.: Atmos. Chem. Phys., 15, 1463–1485, 2015. |
