Eredar measurements of Erebus lava lake level (NERC Grant NE/N009312/1)
Surface level measurements of the Erebus volcano lava lake, Antarctica. Surface level was measured from a site at the crater rim using the Eredar radar system, a ground-based X-band FMCW radar (described in detail here: https://doi.org/10.1029/2018GL079177). The dataset contains a single continuous measurement period from 2016 (all times in UTC): 19 Dec 00:35 -> 19 Dec 19:21 Measurements were taken at a rate of ~0.25 Hz, using a 0.16 s 400 MHz bandwidth Linear Frequency Modulated chirp centred at 10.4 GHz, with 10 chirps being averaged for each measurement.
nonGeographicDataset
https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item166585
name: Data
function: download
http://data.bgs.ac.uk/id/dataHolding/13607771
eng
geoscientificInformation
publication
2008-06-01
Lavas
Volcanoes
NGDC Deposited Data
Radar
revision
2022
NERC_DDC
2016-12-19
2016-12-19
creation
2021-06-02
notApplicable
Raw radar returns have been converted to range using standard FMCW processing. The width of the radar beam (3 degrees) coupled with the oblique viewing angle (antennas at -43 degrees from horizontal) results in a broad return spanning many range cells from the surface of the lake. A Gaussian fit has been made to this return, and the range to the lake taken as the range of the peak of the Gaussian. Ranges have been corrected for viewing geometry and converted to lake surface level relative to mean surface level. Positive values therefore represent higher than average levels. Radar returns from stationary clutter at the margins of the lake have been suppressed using a Moving Target Indication technique described fully in https://doi.org/10.1029/2018GL079177.
publication
2011
false
See the referenced specification
publication
2010-12-08
false
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
csv
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originator
British Geological Survey
distributor
British Geological Survey
pointOfContact
British Geological Survey
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pointOfContact
2024-04-18