“jökulhlaup”的概念、定义、翻译、参考文献-科学参考

jökulhlaup

Geology and Earth Sciences

Sudden, violent, but short-lived increase in the discharge of a meltwater stream issuing from a glacier or ice cap, sometimes due to volcanic activity beneath. A lake may develop above the heat source; this is subsequently breached to produce a torrent of meltwater, e.g. Lake Grimsvotn on Vatnajökull, Iceland. Flow velocity may reach 7–8 m/s and the discharge may attain 100 000 m³/s (e.g. the Katlahlaups from Myrdalsjökull, Iceland), comparable to rates of flow of the Amazon river.

Geography

‘A “catastrophic” flood, often generated by an ice-dammed lake outburst’; for example, the volcanic eruption and concomitant catastrophic flooding from Grímsvötn, Iceland, in November 1996 (Tweed and Russell (1999) PPG 23, 1). Alho (2003) Geograf. Annal. A 85, 3–4 illustrates the severe and extensive jökulhlaup-induced process of land degradation.

单词	jökulhlaup
释义	jökulhlaup Geology and Earth Sciences Sudden, violent, but short-lived increase in the discharge of a meltwater stream issuing from a glacier or ice cap, sometimes due to volcanic activity beneath. A lake may develop above the heat source; this is subsequently breached to produce a torrent of meltwater, e.g. Lake Grimsvotn on Vatnajökull, Iceland. Flow velocity may reach 7–8 m/s and the discharge may attain 100 000 m³/s (e.g. the Katlahlaups from Myrdalsjökull, Iceland), comparable to rates of flow of the Amazon river. Geography ‘A “catastrophic” flood, often generated by an ice-dammed lake outburst’; for example, the volcanic eruption and concomitant catastrophic flooding from Grímsvötn, Iceland, in November 1996 (Tweed and Russell (1999) PPG 23, 1). Alho (2003) Geograf. Annal. A 85, 3–4 illustrates the severe and extensive jökulhlaup-induced process of land degradation.
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