Boyd Philip W, Mackie Douglas
National Institute of Water and Atmospheric Research Centre for Chemical and Physical Oceanography, Department of Chemistry, University of Otago, Dunedin, New Zealand.
Science. 2008 Jan 11;319(5860):159; author reply 159. doi: 10.1126/science.1150011.
Cassar et al. (Reports, 24 August 2007, p. 1067) proposed that aerosol-iron input enhances Southern Ocean export production. Their conclusion critically depends upon aerosol-iron modeling simulations not validated with iron-deposition data and dust dissolution rates based on Northern Hemisphere atmospheric chemical conditions (low pH). This diminishes the relevance of their findings and demonstrates that applying such models to this region is premature.
卡萨等人（《报告》，2007年8月24日，第1067页）提出，气溶胶铁输入会提高南大洋的输出生产力。他们的结论严重依赖于未根据铁沉降数据和基于北半球大气化学条件（低pH值）的粉尘溶解速率进行验证的气溶胶铁模拟。这削弱了他们研究结果的相关性，并表明将此类模型应用于该地区为时过早。
