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Arason, Pordur; Petersen, G N; Bjornsson, H (2011): Statistics of radar altitude estimates of plume-top over time intervals of 3 hours. Icelandic Meteorological Office, Reykjavik, PANGAEA,, In supplement to: Arason, P et al. (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,

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Latitude: 63.630000 * Longitude: -19.620000
Date/Time Start: 2010-04-14T03:00:00 * Date/Time End: 2010-05-24T00:00:00
Eyjafjallajökull * Latitude: 63.630000 * Longitude: -19.620000 * Date/Time Start: 2010-04-14T00:00:00 * Date/Time End: 2010-05-24T00:00:00 * Location: Iceland * Device: Observation (OBSE)
Radar did not detect plume when below about 2.9 km due to mountain ranges and curvature of the Earth.
Date/time (UTC) refer to the end of the time interval.
#NameShort NameUnitPrincipal InvestigatorMethodComment
2Number of scansScans#Arason, PordurRadarwith clearly defined plume height
3Number of scansScans#Arason, PordurRadarwhere plume is clearly under minimum detection height
4Number of scansScans#Arason, PordurRadarwhere plume is obscured by precipitating clouds
5Number of scansScans#Arason, PordurRadarmissing in 5 min
6Number of values averaged at time intervalN#Arason, PordurCalculated
7Altitude, minimumAlt minkmArason, Pordurplume-top
8Mean, statisticalMeanArason, Pordur- one standard deviation
9Mean, statisticalMeanArason, Pordurplume-top altitude
10Mean, statisticalMeanArason, Pordur+ one standard deviation
11Altitude, maximumAlt maxkmArason, Pordurplume-top
12Standard deviationStd dev±Arason, Pordurof the plume-top altitude
13Quartile 25Q25Arason, Pordurof plume-top altitude, 25% of the measurements are below this value
14Median, statisticalMedianArason, Pordurof plume-top altitude
15Quartile 75Q75Arason, Pordurof plume-top altitude
4480 data points

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