An Examination of Ice Nucleus Concentrations in Eastern New York State

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  • 1 Atmospheric Sciences Research Center, State University of New York at Albany, 1400 Washington Avenue, Albany 12222
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Abstract

This work reports the results from a five-station (remote to highly urbanized) sampling network operated in 1976 in eastern New York State in which daily measurements were made of ice nucleus and condensation nucleus concentrations among the stations at most of the test relative humidities. Generally, semi-urban Albany had the highest concentration of ice nuclei and remote Whiteface Mountain the lowest. Albany also typically had the highest slope values (ice nucleus concentration-supersaturation spectrum) and the highest concentrations of condensation nuclei, while Whiteface Mountain typically had the lowest values for these two parameters. Lower ice nucleus concentrations in the New York City area suggest that the degree of urbanization there did not have a major impact on ice nucleus concentrations.

Abstract

This work reports the results from a five-station (remote to highly urbanized) sampling network operated in 1976 in eastern New York State in which daily measurements were made of ice nucleus and condensation nucleus concentrations among the stations at most of the test relative humidities. Generally, semi-urban Albany had the highest concentration of ice nuclei and remote Whiteface Mountain the lowest. Albany also typically had the highest slope values (ice nucleus concentration-supersaturation spectrum) and the highest concentrations of condensation nuclei, while Whiteface Mountain typically had the lowest values for these two parameters. Lower ice nucleus concentrations in the New York City area suggest that the degree of urbanization there did not have a major impact on ice nucleus concentrations.

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