The eruption of Eyjafjallajökull volcano in 2010 lasted for 39 days, 14 April–23 May. The eruption had two explosive phases separated by a phase with lava formation and reduced explosive activity. The height of the plume was monitored every 5 min with a C-band weather radar located in Keflavík International Airport, 155 km distance from the volcano. Furthermore, several web cameras were mounted with a view of the volcano, and their images saved every five seconds. Time series of the plume-top altitude were constructed from the radar observations and images from a web camera located in the village Hvolsvöllur at 34 km distance from the volcano. This paper presents the independent radar and web camera time series and performs cross validation.

The plume-top altitude during the volcanic eruption of Eyjafjallajökull in Iceland, April-May 2010, was measured by a weather radar and web camera. This high resolution temporal data is being used by many researchers as input into models as constraints on volume erupted and distribution of ash.

Supplement to: Arason, Pordur; Petersen, G N; Bjornsson, H (2011): Observations of the altitude of the volcanic plume during the eruption of Eyjafjallajökull, April–May 2010. Earth System Science Data, 3(1), 9-17