Modelled basal melt rate underneath the Antarctic Lambert–Amery glacial system

This is the modelled basal melt rates in six experiments using different geothermal heat flux (GHF) mapsas forcing for an offline coupling between a forward model and an inverse model.The forward model consists of a thermomechanical steady state model using an improved shallow ice approximationin eq...

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Bibliographic Details
Main Authors: Liyun Zhao, Haoran Kang, Michael Wolovick, John C. Moore
Format: Other/Unknown Material
Language:unknown
Published: Zenodo 2022
Subjects:
Online Access:https://doi.org/10.5281/zenodo.6969671
Description
Summary:This is the modelled basal melt rates in six experiments using different geothermal heat flux (GHF) mapsas forcing for an offline coupling between a forward model and an inverse model.The forward model consists of a thermomechanical steady state model using an improved shallow ice approximationin equilibrium with the subglacial hydrological system. The inverse model is solved using3D full Stokesmodel. The six GHF maps are fromMartos et al. (2017),Shen et al. (2020),An et al. (2015),Shapiro and Ritzwoller (2004),Purucker (2012) andLi et al. (2021). Each filename includes the family name of the first author of the GHF map that is used.For instance,basal_meltrate_an.nc providesthe modelledbasal melt rates using An et al. (2015) GHF. Files are provided innetcdf format. The netcdf files have 2D grids only. The unit ofmodelled basal melt rate is mm/yr. The value outside our modelleddomain is given as 9.96921e36. The positive value inside our modelleddomain represents basal melt rate, while negative represents basal freeze rate. For more information, please see the following paper that is currentlyaccepted by The Cryosphere: H. Kang et al.:Evaluation of six geothermal heat flux maps for the Antarctic Lambert–Amery glacial system, The Cryosphere, 2022.