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Data Publisher for Earth & Environmental Science

Schrod, Jann; Kleinhenz, Dominik; Hörhold, Maria; Erhardt, Tobias; Richter, Sarah; Wilhelms, Frank; Fischer, Hubertus; Ebert, Martin; Twarloh, Birthe; Della Lunga, Damiano; Jensen, Camilla Marie; Curtius, Joachim; Bingemer, Heinz G (2020): Ice nucleating particle concentrations by droplet freezing assay measurements from the B17 ice core, Greenland, dating from 1370 to 1990. PANGAEA, https://doi.org/10.1594/PANGAEA.922047

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Abstract:
The data set reports on measurements of ice nucleating particles (INPs) from an ice core in Greenland (B17, 72.25, -37.25, 2820 m AMSL) that dates back to about 1370. INP measurements were performed using the FRIDGE INP counter as a droplet freezing assay for N = 135 meltwater samples from the core. From each sample 3 x 65 droplets of melt water (2.5 µL) were pipetted onto a sample substrate. The experimental nucleation temperature T was decreased at 1 °C/min until every droplet was frozen. The frozen fraction (FF) as a function of T is used to calculate the INP abundance per mL of melt water. A conversion factor is used to estimate atmospheric INP concentrations. The typical time coverage of a sampe is in the order of a couple of months. Samples were selected in regular time intervals of 10 years, plus a number of additional samples. This data supplement is related to a scientific publication (doi:10.5194/acp-2020-556).
Keyword(s):
aerosol; climate; cloud formation; Ice core; Ice Nucleating Particles
Supplement to:
Schrod, Jann; Kleinhenz, Dominik; Hörhold, Maria; Erhardt, Tobias; Richter, Sarah; Wilhelms, Frank; Fischer, Hubertus; Ebert, Martin; Twarloh, Birthe; Della Lunga, Damiano; Jensen, Camilla Marie; Curtius, Joachim; Bingemer, Heinz G (2020): Ice-nucleating particle concentrations of the past: insights from a 600-year-old Greenland ice core. Atmospheric Chemistry and Physics, 20(21), 12459-12482, https://doi.org/10.5194/acp-20-12459-2020
Coverage:
Latitude: 75.250400 * Longitude: -37.624800
Date/Time Start: 1993-01-01T00:00:00 * Date/Time End: 1993-01-01T00:00:00
Minimum Elevation: 2820.0 m * Maximum Elevation: 2820.0 m
Event(s):
ngt06C93.2 (B17) * Latitude: 75.250400 * Longitude: -37.624800 * Date/Time: 1993-01-01T00:00:00 * Elevation: 2820.0 m * Recovery: 100.8 m * Location: Greenland * Campaign: NorthGreenlandTraverse * Basis: Sampling/drilling from ice * Method/Device: Ice drill (ICEDRILL)
Size:
119.2 kBytes

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