Laboratory measurements of ice nuclei concentrations from ocean water spray

Preliminary studies of sea spray-produced particles as ice nuclei (IN) are presented. Ice nuclei were found within aerosols produced by realistic wave generation and sea spray production. These IN were less efficient than those typically found in the free troposphere, with number concentrations more or less in accord with previous measurements over remote ocean regions. Nevertheless, sea spray IN could play a role in affecting cloud properties in remote marine regions, and differences in ocean biology could also influence IN efficiency from sea spray generation.