(Table 4) Seasonal variation of sea spray sodium concentrations during 2004-2007 at Concordia Station, Antarctica ...

• Main Authors: Udisti, Roberto, Dayan, Uri, Becagli, Silvia, Busetto, Maurizio, Frosini, Daniele, Legrand, Michel R, Lucarelli, F, Preunkert, Suzanne, Severi, Mirko, Traversi, Rita, Vitale, Vito
• Format: Dataset
• Language: English
• Published: PANGAEA 2012
• Subjects: Season; DATE/TIME; Date/time end; Sodium; Sodium, standard deviation; Multiple investigations; International Polar Year 2007-2008 IPY; Antarc*; Antarctica; East Antarctica; International Polar Year; IPY
• Online Access: https://dx.doi.org/10.1594/pangaea.839332; https://doi.pangaea.de/10.1594/PANGAEA.839332

From November 2004 to December 2007, size-segregated aerosol samples were collected all-year-round at Dome C (East Antarctica) by using PM10 and PM2.5 samplers, and multi-stage impactors. The data set obtained from the chemical analysis provided the longest and the most time-resolved record of sea spray aerosol (sea salt Na+) in inner Antarctica. Sea spray showed a sharp seasonal pattern. The highest values measured in winter (Apr-Nov) were about ten times larger than in summer (Dec-Mar). For the first time, a size-distribution seasonal pattern was also shown: in winter, sea spray particles are mainly submicrometric, while their summer size-mode is around 1-2 µm. Meteorological analysis on a synoptic scale allowed the definition of atmospheric conditions leading sea spray to Dome C. An extreme-value approach along with specific environmental based criteria was taken to yield stronger fingerprints linking atmospheric circulation (means and anomalies) to extreme sea spray events. Air mass back-trajectory ... : Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 ...