Measurements of Ice Nucleating Particles in ice core samples from Lomonosovfonna (Svalbard) and Summit (Greenland)

The ice nucelating ability of samples from two Arctic ice cores was measured. The Lomo09 ice core originates from Lomonosovfonna (Svalbard;78°49'24"N, 17°25'59"E) and the EUROCORE ice core from Summit (Greenland; 72.58°N, 37.64°W). Lomo09 samples come from the time period between...

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Bibliographic Details
Main Authors: Hartmann, Markus, Blunier, Thomas, Brügger, Sandra Olivia, Schmale, Julia, Schwikowski, Margit, Vogel, Alexander, Wex, Heike, Stratmann, Frank
Format: Other/Unknown Material
Language:English
Published: PANGAEA 2019
Subjects:
AC3
Arctic
Arctic Amplification
EUROCORE
Ice Nucleating Particles
Lomo09
Greenland
ice core
Svalbard
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.899048
https://doi.org/10.1594/PANGAEA.899048
Description
Summary:The ice nucelating ability of samples from two Arctic ice cores was measured. The Lomo09 ice core originates from Lomonosovfonna (Svalbard;78°49'24"N, 17°25'59"E) and the EUROCORE ice core from Summit (Greenland; 72.58°N, 37.64°W). Lomo09 samples come from the time period between 1479 to 1950, EUROCORE samples from the time period between 1734 and 1989. The measurements were performed with the Leipzig Ice Nucleation Array (LINA) and the Ice Nucleation Droplet Array (INDA). LINA and INDA are both droplet freezing arrays, whose primary difference lies in number and volume of the droplets (LINA: 90 droplets with a volume of 1 µL; INDA: 96 droplets with a volume of 50 µL). Both devices yield the fraction of frozen droplets (f_ice) as function of temperature as the measured quantity. Based on Vali (1971), f_ice can be further translated into number concentrations of ice nucleating particles (INP). For information regarding depth and age of individual samples see the tables in "further details".

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