Modelled Antarctic firn depth averaged over 1979-2013 and corresponding brine zones area ...

The firn densification model IMAU-FDM has been used to simulate the firn density profile around Antarctica. The model is forced at the surface with climate data from the RACMO2.3 regional climate model. Here we provide the depth of three key firn density layers below the surface (750, 800 and 830 kg...

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Bibliographic Details
Main Authors: Cook, Sue, Galton-Fenzi, Ben, Ligtenberg, Stefan R M, Wiltshire, Karen Helen
Format: Dataset
Language:English
Published: PANGAEA 2018
Subjects:
RACMO
File name
File format
File size
Uniform resource locator/link to file
Antarc*
Antarctic
Antarctica
Ice Shelves
Online Access:https://dx.doi.org/10.1594/pangaea.896384
https://doi.pangaea.de/10.1594/PANGAEA.896384
Description
Summary:The firn densification model IMAU-FDM has been used to simulate the firn density profile around Antarctica. The model is forced at the surface with climate data from the RACMO2.3 regional climate model. Here we provide the depth of three key firn density layers below the surface (750, 800 and 830 kgm^-3), averaged over the period 1979-2013. The data is on a horizontal grid of 27x27 km. The depth of each of these density layers was then subtracted from the surface elevation provided by Bedmap2 to determine where permeable firn exists below sea level. This defines the "brine zone" - the region where seawater may infiltrate the firn layer. We also provide shapefiles mapping the brine zone for each of three stated densities. ... : Supplement to: Cook, Sue; Galton-Fenzi, Ben; Ligtenberg, Stefan R M; Coleman, Richard (2018): Brief communication: widespread potential for seawater infiltration on Antarctic ice shelves. The Cryosphere, 12(12), 3853-3859 ...

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