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BRISRES SIGNED

The Basal Roughness of Ice Sheets from Radio-Echo Sounding

Total Cost €

0

EC-Contrib. €

0

Partnership

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Project "BRISRES" data sheet

The following table provides information about the project.

Coordinator
UNIVERSITY OF BRISTOL 

Organization address
address: BEACON HOUSE QUEENS ROAD
city: BRISTOL
postcode: BS8 1QU
website: www.bristol.ac.uk

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country United Kingdom [UK]
 Project website http://www.bristol.ac.uk/geography/people/tom-m-jordan/index.html
 Total cost 251˙857 €
 EC max contribution 251˙857 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2016
 Funding Scheme MSCA-IF-GF
 Starting year 2017
 Duration (year-month-day) from 2017-08-21   to  2020-08-20

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITY OF BRISTOL UK (BRISTOL) coordinator 251˙857.00
2    BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY US (STANFORD) partner 0.00

Map

 Project objective

The subglacial environment beneath the Greenland and Antarctic ice sheets is one of the physically least well characterised environments on Earth. Ice sheet model simulations demonstrate high sensitivity to their basal sliding parameterisation which is governed by basal roughness, the thermal state of the bed, and lithology (presence or absence or deformable sediments). Compiling observations of the current state of the glacier bed is therefore crucial for the accuracy of ice sheet modelling and future predictions of sea level change. Radio-echo sounding (RES) is the only existing geophysical technique that has sufficient data coverage to enable ice-sheet-wide information to be obtained from the bed. In general, however, quantitative analysis of radar sounding data, and integration with electromagnetic and geostatistical approaches, lags significantly behind the data availability. In this fellowship I will develop an integrated framework for characterising the roughness of glacier beds; exploiting information from the electromagnetic scattering of the radar pulse and the statistics of the basal topography. This approach will enable an unprecedented characterisation of the scale dependence of basal roughness from the kilometre to the metre scale - the scale that is most relevant for basal sliding. Via a synthesis with ice sheet models I will challenge assumptions that are made regarding basal roughness and its relationship with other geophysical data fields, enabling new radar-derived constraints to be placed upon the bed of ice sheets. Subsidiary goals include: adapting electromagnetic scattering models for fractal surfaces to ice penetrating radar; identifying and mapping regions of deformable bed; and developing a framework for combining electromagnetic scattering information from different radar systems. This fellowship represents a unique opportunity to transfer knowledge and techniques from the US geophysical radar community to European glaciology.

 Publications

year authors and title journal last update
List of publications.
2019 Thomas M. Jordan, Dustin M. Schroeder, Davide Castelletti, Jilu Li, Jorgen Dall
A Polarimetric Coherence Method to Determine Ice Crystal Orientation Fabric From Radar Sounding: Application to the NEEM Ice Core Region
published pages: 1-17, ISSN: 0196-2892, DOI: 10.1109/tgrs.2019.2921980
IEEE Transactions on Geoscience and Remote Sensing 2019-10-29
2018 Thomas M. Jordan, Christopher N. Williams, Dustin M. Schroeder, Yasmina M. Martos, Michael A. Cooper, Martin J. Siegert, John D. Paden, Philippe Huybrechts, Jonathan L. Bamber
A constraint upon the basal water distribution and thermal state of the Greenland Ice Sheet from radar bed echoes
published pages: 2831-2854, ISSN: 1994-0424, DOI: 10.5194/tc-12-2831-2018
The Cryosphere 12/9 2019-10-29

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