Abstract
We present data on ice nucleating particles (INPs) from three Antarctic
locations, a region for which INP measurements are still rare: the
German Neumayer research station, contributing two years of data; the
Belgian Princess Elisabeth Station with samples from two austral summer
seasons; and the region of the Antarctic Peninsula, adding data from a
research cruise and subsequent land-based sampling. While often land
masses are INP sources, we found especially low INP concentrations for
the two stations furthest south, Neumayer and Princess Elisabeth. No
clear annual cycle could be identified at Neumayer. No strong signal
from biological particles, as known to occur e.g., in the summertime
Arctic, was observed. Our findings suggest that Antarctica lacks INP
sources, especially from the biosphere, which exist elsewhere, even in
the Arctic. Furthermore, a simple INP parameterization was developed,
based on the Neumayer dataset and tested for data from Princess
Elisabeth Station.