A qualitative investigation into scavenging of airborne sea salt over Macquarie Island.

A comparative study made on the amount of sea salt (dominantly NaCl) deposited on Macquarie Island due to atmospheric precipitation. It is found that the scavenging of solid salt particles alone cannot account for all the salt budget over certain areas of the Island. It is considered that sea spray droplets carried aloft by winds and scavenged by precipitation in the immediate vicinity of the shoreline is responsible for this deficit.The fields in this dataset are:Site details: Altitude, Distance from west coast and Mean annual precipitation.Chemical componentBubble size diameterMass of salt particleDry salt particle radiusNumber of equivalent days of continuous precipitationSite: Plateau, Wireless Hill, IsthmusDry salt particlesSea spray dropletsTotal fallout

本研究针对麦夸里岛（Macquarie Island）上因大气降水沉积的海盐（主要成分为氯化钠（NaCl））含量开展对比分析。研究发现，仅通过固态盐粒的大气清除过程，无法解释该岛部分区域的全部盐收支情况。学界认为，由风力抬升至高空、并在海岸线近岸区域随降水完成清除作用的海浪飞沫液滴，正是造成这一盐收支缺口的原因。本数据集包含以下字段：站点详情：海拔、距西海岸距离、年平均降水量；化学组分指标：气泡尺寸直径、盐粒质量、干盐粒半径、连续降水等效天数；研究站点：高原（Plateau）、无线山（Wireless Hill）、地峡（Isthmus）；样本类别：干盐粒、海浪飞沫液滴、总沉降物。