30 September 2019 to 3 October 2019
The Royal Danish Academy of Sciences and Letters
Europe/Copenhagen timezone

Using Distributed Temperature Sensing to measure borehole temperature.

1 Oct 2019, 17:48
4m
The Royal Danish Academy of Sciences and Letters

The Royal Danish Academy of Sciences and Letters

The Royal Danish Academy of Sciences and Letters H.C. Andersens Boulevard 35 DK-1553 Copenhagen V Denmark
Poster Session 4

Speaker

Julius Rix (The British Antarctic Survey)

Description

A fibre-optic Distributed Temperature Sensing (DTS) instrument has been deployed into a number of ice boreholes in order to measure the temperature profile. The advantage of the DTS is that glass in the fibre itself becomes the temperature sensor and a relatively cheap length of fibre-optic cable can be used to measure temperature continuously along its length. As temperatures are measured throughout the cable's length, cables can be frozen in place and true undisturbed temperatures obtained. We describe the weaknesses of the of-the-shelf DTS instrument used and ways to overcome them. A method is described in order to obtain well calibrated borehole temperatures. Using this method we present borehole temperature profiles from the TALDICE, Little Dome C and Skytrain Ice Rise boreholes.

Primary author

Julius Rix (The British Antarctic Survey)

Co-authors

Dr Rob Mulvaney (British Antarctic Survey) Dr Carlos Martin (The British Antarctic Survey) Dr Catherine Ritz (Institut des Geosciences de l'environnement) eric lefebvre Dr Massimo Frezzotti (ENEA) Dr Keith Nicholls (The British Antarctic Survey)

Presentation Materials

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