Table 3 Description of the samples collected and corresponding meteorological conditions.

From: Evidence for a missing source of efficient ice nuclei

Sampling Site

Date of collection

Location

Climate

Altitude

Annual precipitation (mm)

Hulunber Grassland

2011-08-08; 2012-05-12; 2012-06-01;

2012-07-08; 2012-07-11; 2012-07-30

2012-08-07; 2013-05-26; 2013-05-28;

2013-06-09; 2013-06-27; 2013-07-12;

2013-07-25; 2013-08-04; 2013-08-28

49°19′N, 120°03′E;

semi–arid climate

628 m a.s.l.

400

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