Transport, deposition and distribution of marine aerosols over southern Sweden during dry westerly storms

• Published in: Ambio 1990-07, Vol.19 (4), p.180-188
• Main Author: Franzen, L.G. (Goeteborg Univ. (Sweden). Naturgeografiska Inst.)
• Format: Article
• Language: English
• Subjects: AEROSOL; AEROSOLES; AEROSOLS; CALCIO; CALCIUM; Chlorides; Coastal Effects of Marine Aerosols; Coasts; dry deposition; FOREST PATHOLOGY; MAGNESIO; MAGNESIUM; PATHOLOGIE FORESTIERE; PATOLOGIA FORESTAL; PINUS SYLVESTRIS; POTASIO; POTASSIUM; Precipitation; Salts; sea salt; Sea water; Seas; SODIO; SODIUM; Storm damage; STORMS; SUECIA; SUEDE; Sulfates; SWEDEN; TEMPETE; TORMENTAS; Wind velocity
• ISSN: 0044-7447; 1654-7209

The paper includes quantifications of the sea salt supplied to the Swedish west coast during two westerly storms. The dry deposition of salt was measured from the west coast to the east coast of southern Sweden, using needles of Scots pine (Pinus sylvestris, L.) as deposition surfaces. The four major cations of seawater, sodium, potassium, magnesium, and calcium, and the two major anions, chloride and sulfate were measured. The results showed that the relationship between the different ions of the pine needles was similar to that for seawater in most of the sites investigated. The total salt quantity deposited on a specific pine-needle area was determined. The quantities of sea salt decreased significantly from the west to the east coast. From the maximum content of$4900\ {\rm mg}\cdot {\rm m}^{-2}$of exposed pine-needle area, measured near the western shore, the remainder on the east coast ranged from about 60 to$300\ {\rm mg}\cdot {\rm m}^{-2}$. The west-east gradient of dry deposited salt corresponded well with the distribution gradient of the salt deposition from precipitation.