Bull Volcanol (2004) 66:457–473 DOI 10.1007/s00445-003-0329-3
2000 was the first volcanic cloud to be continuously and completely monitored advecting above Iceland, using the C-band weather radar near the Keflavk international airport. Real-time radar observations of the onset, advec-tion, and waning of the eruption cloud were studied using time series of PPI...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.468.4877 http://www.geo.mtu.edu/~raman/papers/LacasseBV.pdf |
| Summary: | 2000 was the first volcanic cloud to be continuously and completely monitored advecting above Iceland, using the C-band weather radar near the Keflavk international airport. Real-time radar observations of the onset, advec-tion, and waning of the eruption cloud were studied using time series of PPI (plan-position indicator) radar images, including VMI normal, Echotop, and Cappi level 2 displays. The reflectivity of the entire volcanic cloud ranges from 0 to>60 dBz. The eruption column above the vent is essentially characterised by VMI normal and Cappi level 2 values,>30 dBz, due to the dominant influence of lapilli and ash (tephra) on the overall reflected signal. The cloud generated by the column was advected downwind to the north-northeast. It is charac-terised by values between 0 and 30 dBz, and the |
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