Imaging short period variations in lava flux
Imaging short period variations in lava flux
复制标题
对熔岩通量的短期变化进行成像
DOI:
10.1007/s00445-010-0354-y
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发表时间:
2010
影响因子:
3.5
通讯作者:
James M
中科院分区:
文献类型:
--
作者:
James M
Short period (e.g. <1 h) variations in lava effusion rate have been detected previously on Mount Etna, Sicily, but the causes and effects of such changes are poorly understood because of difficulties in obtaining suitably high frequency measurements over long periods. Here, we report short period flux variations in active lava flows, recorded in dense time series imagery over a 7-night period using modified remote trail cameras. The sequences of night-time images show significant pulses of enhanced incandescence, interpreted as short period increases in lava flux, travelling down-channel at velocities of ∼10–20 m min−1. Pulse generation decreased from an average of one pulse per hour on the first night to approximately one per night within a few nights. Effusion rate changes on these timescales are considered to reflect instabilities in magma ascent and, consequently, could provide insight into subsurface flow processes.
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DOI:
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发表时间:
1987
期刊:
影响因子:
--
作者:
J. Guest;C. Kilburn;H. Pinkerton;A. Duncan
通讯作者:
A. Duncan
DOI:
--
发表时间:
2005
期刊:
影响因子:
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作者:
T. Menand;J. Phillips
通讯作者:
J. Phillips
DOI:
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发表时间:
2000
期刊:
影响因子:
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作者:
A. Harris;J. Murray;S. Aries;Meirion Davies;L. Flynn;M. Wooster;R. Wright;D. Rothery
通讯作者:
D. Rothery
影响因子:
3.7
作者:
Huppert, Herbert E.;Hallworth, Mark A.
通讯作者:
Hallworth, Mark A.
DOI:
10.1016/s0377-0273(03)00232-4
发表时间:
2004-01-15
影响因子:
2.9
作者:
James, MR;Lane, SJ;Gilbert, JS
通讯作者:
Gilbert, JS