Air Resources Laboratory, Environmental Research Laboratories, 20910, Silver Spring, MD, USA.
Environ Monit Assess. 1989 Jul;12(3):255-67. doi: 10.1007/BF00394805.
The National Oceanic and Atmospheric Administration Geophysical Monitoring for Climatic Change program has operated four remote precipitation chemistry stations at two polar and two tropical Pacific locations for over a decade. Station geography and meteorology is discussed and a summary of the hydrogen, sulfate, and nitrate ion data collected since 1980 is presented. Results show that at all four locations, the ions which have major anthropogenic sources were far less concentrated than in samples collected in heavily industrialized areas in the northeastern United States and Europe. Concentrations at American Samoa and the South Pole showed little variability over the year whereas concentrations at Point Barrow, Alaska and Mauna Loa, Hawaii were highly variable.
美国国家海洋和大气管理局的气候变化地球物理监测计划已经在两个极地和两个热带太平洋地区运行了四个远程降水化学站，时间超过十年。本文讨论了站点的地理位置和气象条件，并总结了自 1980 年以来收集到的氢、硫酸盐和硝酸盐离子数据。结果表明，在所有四个地点，主要来自人为源的离子浓度远远低于在美国东北部和欧洲工业化严重地区采集的样本。美国萨摩亚和南极点的浓度在一年中变化不大，而阿拉斯加的巴罗角和夏威夷的莫纳罗亚的浓度则变化很大。
