Arason, Pordur; Petersen, G N; Bjornsson, H (2011): Statistics of radar altitude estimates of plume-top over time intervals of 24 hours [dataset]. Icelandic Meteorological Office, Reykjavik, PANGAEA, https://doi.org/10.1594/PANGAEA.760689, 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, https://doi.org/10.5194/essd-3-9-2011
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Published: 2011-05-15 • DOI registered: 2011-06-12
Coverage:
Latitude: 63.630000 * Longitude: -19.620000
Date/Time Start: 2010-04-15T00:00:00 * Date/Time End: 2010-05-24T00:00:00
Event(s):
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 * Method/Device: Observation (OBSE)
Comment:
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.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Geocode | |||
| 2 | Number of scans | Scans | # | Arason, Pordur | Radar | with clearly defined plume height |
| 3 | Number of scans | Scans | # | Arason, Pordur | Radar | where plume is clearly under minimum detection height |
| 4 | Number of scans | Scans | # | Arason, Pordur | Radar | where plume is obscured by precipitating clouds |
| 5 | Number of scans | Scans | # | Arason, Pordur | Radar | missing in 5 min |
| 6 | Number of values averaged at time interval | N | # | Arason, Pordur | Calculated | |
| 7 | Altitude, minimum | Alt min | km | Arason, Pordur | plume-top | |
| 8 | Mean, statistical | Mean | Arason, Pordur | - one standard deviation | ||
| 9 | Mean, statistical | Mean | Arason, Pordur | plume-top altitude | ||
| 10 | Mean, statistical | Mean | Arason, Pordur | + one standard deviatio | ||
| 11 | Altitude, maximum | Alt max | km | Arason, Pordur | plume-top | |
| 12 | Standard deviation | Std dev | ± | Arason, Pordur | of the plume-top altitude | |
| 13 | Quartile 25 | Q25 | Arason, Pordur | of plume-top altitude, 25% of the measurements are below this value | ||
| 14 | Median, statistical | Median | Arason, Pordur | of plume-top altitude | ||
| 15 | Quartile 75 | Q75 | Arason, Pordur | of plume-top altitude |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
560 data points