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Title: Ice nucleating particle concentrations at Macquarie Island, 2017/8

Abstract

These data list ice nucleating particle (INP) number concentrations active in the immersion freezing mode. Aerosol filters were collected during late March 2017 to March 2018 as part of the Macquarie Island Cloud and Radiation Experiment (MICRE), located at the Australian Antarctic Division's Macquarie Island station. Collections were made over alternating periods of 48 and 72 hours using open-faced polycarbonate filters that were approximately 4 m MSL, sited near the main AAD station on the island, at -54.4997 deg latitude and 158.9344 deg longitude. The volume of air filtered ranged from 5000 to 60000 volumetric liters per filter sample. Filters were stored and returned frozen to Colorado State University (CSU), where immersion freezing measurements over a range from 0 to -28 C were made using the CSU Ice Spectrometer (IS). Collected particles from each filter were resuspended in filtered, deionized water, and then dispensed into the IS and cooled to obtain cumulative INP temperature spectra. Aliquots of suspensions from selected samples were also heat treated (95 C for 20 min) to denature and deactivate biological INPs, and digested in 10% H2O2 at 95 C under UV-B for 20 min to remove all organic carbon INPs, prior to measurement using themore » IS.« less

Authors:
;
Publication Date:
DOE Contract Number:  
DE-AC05-00OR22725
Product Type:
Dataset
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Atmospheric Radiation Measurement (ARM) Archive; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Atmospheric Radiation Measurement (ARM) Data Center
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Subject:
54 Environmental Sciences
Keywords:
Colorado State University Ice Spectrometer,Ice nucleating particle concentration, ARM, DOE.
OSTI Identifier:
1638330
DOI:
https://doi.org/10.5439/1638330

Citation Formats

Hill, Thomas, and DeMott, Paul. Ice nucleating particle concentrations at Macquarie Island, 2017/8. United States: N. p., 2018. Web. doi:10.5439/1638330.
Hill, Thomas, & DeMott, Paul. Ice nucleating particle concentrations at Macquarie Island, 2017/8. United States. doi:https://doi.org/10.5439/1638330
Hill, Thomas, and DeMott, Paul. 2018. "Ice nucleating particle concentrations at Macquarie Island, 2017/8". United States. doi:https://doi.org/10.5439/1638330. https://www.osti.gov/servlets/purl/1638330. Pub date:Tue Oct 16 00:00:00 EDT 2018
@article{osti_1638330,
title = {Ice nucleating particle concentrations at Macquarie Island, 2017/8},
author = {Hill, Thomas and DeMott, Paul},
abstractNote = {These data list ice nucleating particle (INP) number concentrations active in the immersion freezing mode. Aerosol filters were collected during late March 2017 to March 2018 as part of the Macquarie Island Cloud and Radiation Experiment (MICRE), located at the Australian Antarctic Division's Macquarie Island station. Collections were made over alternating periods of 48 and 72 hours using open-faced polycarbonate filters that were approximately 4 m MSL, sited near the main AAD station on the island, at -54.4997 deg latitude and 158.9344 deg longitude. The volume of air filtered ranged from 5000 to 60000 volumetric liters per filter sample. Filters were stored and returned frozen to Colorado State University (CSU), where immersion freezing measurements over a range from 0 to -28 C were made using the CSU Ice Spectrometer (IS). Collected particles from each filter were resuspended in filtered, deionized water, and then dispensed into the IS and cooled to obtain cumulative INP temperature spectra. Aliquots of suspensions from selected samples were also heat treated (95 C for 20 min) to denature and deactivate biological INPs, and digested in 10% H2O2 at 95 C under UV-B for 20 min to remove all organic carbon INPs, prior to measurement using the IS.},
doi = {10.5439/1638330},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {10}
}