Science. 1995 Feb 17;267(5200):1002-5. doi: 10.1126/science.267.5200.1002.
Surface waters along a cruise track in the East Pacific Ocean were undersaturated in methyl bromide (CH(3)Br) in most areas except for coastal and upwelling regions, with saturation anomalies ranging from + 100 percent in coastal waters to -50 percent in open ocean areas, representing a regionally weighted mean of -16 (-13 to -20) percent. The partial lifetime of atmospheric CH(3)Br with respect to calculated oceanic degradation along this cruise track is 3.0 (2.9 to 3.6) years. The global, mean dry mole fraction of CH3Br in the atmosphere was 9.8 +/- 0.6 parts per trillion, with an interhemispheric ratio of 1.31 +/- 0.08. These data indicate that approximately 8 percent (0.2 parts per trillion) of the observed interhemispheric difference in atmospheric CH3Br could be attributed to an uneven global distribution of oceanic sources and sinks.
东太平洋航线上的表层海水在大多数地区都不饱和于甲基溴（CH(3)Br），除了沿海和上升流区域，这些区域的饱和异常从沿海的+100%到开阔海域的-50%不等，代表了一个区域加权平均值为-16（-13 至-20）%。根据该航线上的计算，大气 CH(3)Br 的部分生命期相对于海洋降解为 3.0（2.9 至 3.6）年。大气中 CH3Br 的全球平均干摩尔分数为 9.8 +/- 0.6 皮克/万亿，半球间比值为 1.31 +/- 0.08。这些数据表明，观测到的大气 CH3Br 在半球间差异的大约 8%（0.2 皮克/万亿）可能归因于海洋源汇的全球不均匀分布。
