Snowdrift effect on snow deposition: Insights from a comparison of a snow pit profile and meteorological observations in east Antarctica
Snowdrift effect on snow deposition: Insights from a comparison of a snow pit profile and meteorological observations in east Antarctica
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雪堆对积雪的影响：南极洲东部雪坑轮廓与气象观测比较的见解
DOI：
10.1007/s11430-016-0008-4
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发表时间：
2017-02
期刊：
影响因子：
--
通讯作者：
Qin DaHe
中科院分区：
文献类型：
--
作者：
Ding MingHu;Zhang Tong;Xiao CunDe;Li ChuanJin;Jin Bo;Bian LinGen;Wang ShuJie;Zhang DongQi;Qin DaHe
在南极内陆的Eagle自动气象站站点，使用高频和精确的超声波探测仪监测了三年期间(2005年1月17日至2008年1月4日)的降水/沉积和漂雪事件。传感器下方的雪坑也产生了离子物种和氧同位素比率。这些累积和雪移事件被用来检验δ18O和离子物种与季节变化的同步性，为评估典型南极内陆条件下的雪移效应提供了机会。对于这个长达3年的雪坑，传统测年方法和超声波记录之间存在长达1年的差异。这一差异表明，在积雪少或风大的地区，积雪效应会引起积雪的异常扰动。对于冰芯的高分辨率测年和地表物质平衡的估算，尤其是当大多数南极内陆地区的地形与Eagle站点相似时，应认真考虑雪崩效应。
A high-frequency and precise ultrasonic sounder was used to monitor precipitated/deposited and drift snow events over a 3-year period (17 January 2005 to 4 January 2008) at the Eagle automatic weather station site, inland Antarctica. Ion species and oxygen isotope ratios were also generated from a snow pit below the sensor. These accumulation and snowdrift events were used to examine the synchronism with seasonal variations ofδ18O and ion species, providing an opportunity to assess the snowdrift effect in typical Antarctic inland conditions. There were up to 1-year differences for this 3-year-long snow pit between the traditional dating method and ultrasonic records. This difference implies that in areas with low accumulation or high wind, the snowdrift effect can induce abnormal disturbances on snow deposition. The snowdrift effect should be seriously taken into account for high-resolution dating of ice cores and estimation of surface mass balance, especially when the morphology of most Antarctic inland areas is similar to that of the Eagle site.
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影响因子：
2.9
作者：
Alison Mcmorrow;M. Curran;T. V. van Ommen;V. Morgan;I. Allison
通讯作者：
Alison Mcmorrow;M. Curran;T. V. van Ommen;V. Morgan;I. Allison
影响因子：
1.6
作者：
Yongfeng Ma;L. Bian;C. Xiao;I. Allison;Xiuji Zhou
通讯作者：
Yongfeng Ma;L. Bian;C. Xiao;I. Allison;Xiuji Zhou
影响因子：
3.4
作者：
J. Winther;M. Jespersen;G. Liston
通讯作者：
J. Winther;M. Jespersen;G. Liston
DOI：
10.2307/1551118
发表时间：
1981-01
期刊：
Arctic and alpine research
影响因子：
--
作者：
R. Armstrong;W. Paterson
通讯作者：
R. Armstrong;W. Paterson
影响因子：
3.4
作者：
A. Gow
通讯作者：
A. Gow