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Two weather radar time series of the altitude of the volcanic plume during the May 2011 eruption of Grímsv tn, Iceland

DOI: 10.5194/essdd-5-281-2012

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Abstract:

The eruption of Grímsv tn volcano in Iceland in 2011 lasted for a week, 21–28 May. The eruption was explosive and peaked during the first hours, with the eruption plume reaching 20–25 km altitude. The height of the plume was monitored every 5 min with a C-band weather radar located at Keflavík International Airport and a mobile X-band radar, 257 km and 75 km distance from the volcano, respectively. In addition, photographs taken during the first half-hour of the eruption give information regarding the initial rise. Time series of the plume-top altitude were constructed from the radar observations. This paper presents the two independent radar time series. The series have been cross validated and there is a good agreement between the time series. The echo top radar series of the altitude of the volcanic plume are publicly available from the Pangaea Data Publisher (http://doi.pangaea.de/10.1594/PANGAEA.778390).

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