Projects per year
Optical televiewer luminosity logs are compared with densities measured gravimetrically on 520 snow, firn and ice samples from two locations of similar annual temperature (~ − 14 °C) and contrasting accumulation rates (0.23 and 0.43 m w.e. per year) on the Roi Baudouin Ice Shelf, Antarctica. At the scale of ≥10-1 m, an inverse exponential relationship (R2 = 0.96) is recorded between density and luminosity, indicating (i) that OPTV luminosity provides an effective proxy for density at such ice shelves, and (ii) that densities may be reconstructed from boreholes drilled elsewhere by hot water without the need for core material. Our analysis also suggests that this relationship may hold for newly-formed ice as well as for snow and firn. At the scale of ≤10-1 m, both luminosity and density show similar patterns, but precise correlation is confounded by detailed differences between the two records.
|Journal||Geophysical Research Letters|
|Early online date||19 Nov 2013|
|Publication status||Published - 28 Nov 2013|
- optical televiewing
- firn density
- ice shelf density
FingerprintDive into the research topics of 'Ice shelf density reconstructed from optical televiewer borehole logging'. Together they form a unique fingerprint.
- 1 Finished
Extended Range Optical Televiewer Imaging of the NEEM Deep Ice Borehole
Natural Environment Research Council
01 Mar 2012 → 31 Dec 2013
Project: Externally funded research