Relationship between δD and δ18O values of falling snow particles from a separate cloud
Relationship between δD and δ18O values of falling snow particles from a separate cloud
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来自单独云的落雪颗粒的 δD 和 δ18O 值之间的关系
DOI：
10.3402/tellusb.v40i3.15907
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发表时间：
1988
期刊：
影响因子：
2.3
通讯作者：
M. Kusakabe
中科院分区：
文献类型：
--
作者：
A. Sugimoto;K. Higuchi;M. Kusakabe
利用沿移动云轨迹沿着两个观测站采集的对流云落雪粒子的δD值和δ 18 O值（相对于SMOW的千分偏差）的关系进行了研究。1983年在日本北陆进行了观测，1985年和1986年在日本北海道进行了观测。来自单独云的雪颗粒的δD和δ 18 O值呈线性相关。δD-δ 180谱线的氘过量值远大于10，且各不相同，斜率在8.5-9.6之间的有7例。这些观测结果表明，在两个台站观测到的下落雪粒是在由含有具有相同同位素组成的初始水蒸气的气包组成的云中产生的，并且在雪晶生长期间的升华过程中可能存在动力学效应。DOI：10.1111/j.1600-0889.1988.tb00290.x
The relationship between δD and δ 18 O values (per mille deviation from SMOW) was investigated on falling snow particles from a separate convective cloud collected at 2 stations along a moving cloud trajectory. Observations were made in 1983 in Hokuriku, Japan and in 1985 and 1986 in Hokkaido, Japan. The δD and δ 18 O values of snow particles from a separate cloud were linearly related. The values of deuterium excess of observed δD-δ 18 0 lines were much greater than 10 and differed with each case, while the slope was 8.5-9.6 in 7 of 9 cases. Such observational results indicated that falling snow particles observed at both stations were produced in a cloud consisting of the air parcels containing initial water vapor having the same isotopic composition and that there was a possibility of kinetic effect in the sublimation process during growth of snow crystals. DOI: 10.1111/j.1600-0889.1988.tb00290.x