Inland transport of marine aerosols in southern Sweden
Inland transport of marine aerosols in southern Sweden
复制标题
DOI：
10.1016/s1352-2310(99)00198-3
复制
发表时间：
2000-01-01
影响因子：
5
通讯作者：
Franzén, LG
中科院分区：
文献类型：
--
作者：
Gustafsson, MER;Franzén, LG
利用从西海岸到东海岸的样带上的六个气象站，研究了穿越瑞典南部的海洋气溶胶的输送。1995年，在干燥的西风带期间进行了10次测量。空气中盐分的浓度和通量是用“盐片”测量的。结果表明，无论何时，盐分都是沿整个样带输送的，盐分浓度和盐通量均随离海岸下风距离的增加而减小，呈倒数幂函数关系。最东边的两个地铁站显示出轻微的增长：东海岸的增长会得到回报。由于受到沿海气溶胶生产的强烈影响，西海岸的数据变异性很大。这种影响沿着下风方向减弱，形成了更低、变化更小的浓度。基于该数据的统计模型与以往的模型和数据具有较好的一致性。在此基础上，分析了樟子松针叶在两次大风后的盐分含量。研究表明，在剖面上，Ca~(2+)/Na~+、Ca~(2+)/Na~+、K~+/Na~+、Mg~(2+)/Na~+和SO_4~(2+)/Na~+有明显的下降，Cl~-/Na~+接近海水，SO_4~(2-)超标。此外，沿轮廓的程度的重要性。此外，还研究了暴露程度的重要性，认为迎风表面的粗糙度是影响森林边缘树木沉积的一个重要因素。(C)1999爱思唯尔科学有限公司。保留所有权利。
The transport of marine aerosols across southern Sweden was studied using six meteorological stations in a transect from west- to east-coast. Measurements were made during dry westerlies on 10 occasions during 1995. The concentration and flux of salt in the air was measured using "salt vanes". It is concluded that marine salt is transported along the whole transect at all occasions and that the concentration and flux of salt decrease with downwind distance from the coast as an inversed power function. The two easternmost stations show a slight:increase rewards the east-coast. Variability of the data is high on the west coast due to strong influence from the coastal production of aerosols. This effect diminishes along downwind forming lower, less variable concentration further inland. Statistical models based on the data are in relatively good agreement with previous models and data. Further, salt content on Scots Pine (Pinus sylvestris, L) needles after two westerly gale occasions, in profiles from west- to east-coast, were analysed. The Cl-/Na+, Ca2+/Na+, K+/Na+, Mg2+/Na+ and SO42-/Na+ ratios were studied revealing a clear downwind decrease in Ca2+/Na+ and Mg2+/Na+, a close to sea water ratio for Cl-/Na+ and an excess of SO42- along the profile. Also, the importance of degree of along the profile. Also, the importance of degree of exposure was studied concluding that the roughness of the upwind surface is an important factor for the deposition onto trees in:forest edges. (C) 1999 Elsevier Science Ltd. All rights reserved.