Ross Ice Shelf (Antarctica) in situ radio-frequency attenuation
Ross Ice Shelf (Antarctica) in situ radio-frequency attenuation
复制标题
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
中科院分区:
文献类型:
--
作者:
Taylor Barrella;S. Barwick;D. Saltzberg
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.
影响因子:
3.5
作者:
Besson D
通讯作者:
Besson D