Ross Ice Shelf (Antarctica) in situ radio-frequency attenuation

Ross Ice Shelf (Antarctica) in situ radio-frequency attenuation
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罗斯冰架(南极洲)原位射频衰减

DOI:
10.3189/002214311795306691
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发表时间:
2010
影响因子:
3.4
通讯作者:
D. Saltzberg
D. Saltzberg
中科院分区:
地球科学3区
文献类型:
--
作者:
Taylor Barrella;S. Barwick;D. Saltzberg

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摘要本文测量了南极罗斯冰架垂直传播的射频信号的现场平均电场衰减长度< Lα >。我们选择了一个地点,摩尔海湾,米纳布拉夫南部,以其在冰海界面的高反射率而闻名。我们确认了镜面反射,并使用返回脉冲测量了往返距离为1155 m的75-1250 MHz的平均衰减长度。我们发现< Lα >在75 MHz时从~ 500 m变化到1250 MHz时的~ 300 m,实验不确定度为55-15 m。
Abstract We have measured the in situ average electric field attenuation length, 〈Lα 〉, for radio-frequency signals broadcast vertically through the Ross Ice Shelf, Antarctica. We chose a location, Moore Embayment, south of Minna Bluff, known for its high reflectivity at the ice–sea interface. We confirmed specular reflection and used the return pulses to measure the average attenuation length from 75–1250 MHz over the round-trip distance of 1155 m. We find 〈Lα 〉 to vary from ∼500 m at 75 MHz to ∼300 m at 1250 MHz, with an experimental uncertainty of 55–15 m.
南极洲泰勒圆顶附近的原位放射冰川测量及其对超高能 (UHE) 中微子天文学的影响
DOI: 10.1016/j.astropartphys.2007.12.004
发表时间: 2008
影响因子: 3.5
作者:
Besson D
通讯作者: Besson D