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

被引：28

作者：

Barrella, Taylor ^{[1
]}

Barwick, Steven ^{[2
]}

Saltzberg, David ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[2] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

来源：

JOURNAL OF GLACIOLOGY | 2011年 / 57卷 / 201期

基金：

美国国家科学基金会;

关键词：

ARIANNA;

D O I：

10.3189/002214311795306691

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

We have measured the in situ average electric field attenuation length, < L-alpha >, for radiofrequency 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 75-1250MHz over the round-trip distance of 1155 m. We find < L-alpha > to vary from similar to 500 m at 75 MHz to similar to 300 m at 1250 MHz, with an experimental uncertainty of 55-15 m.

引用

页码：61 / 66

页数：6

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