Global-scale modelling of glaciers, ice sheets and permafrost : recommendations for Hydro-JULES

This report is part of the Hydro-JULES research programme supported by NERC National
Capability funding (grant number: NE/S017380/1) to the UK Centre for Ecology & Hydrology
(UKCEH), British Geological Survey (BGS) and National Centre for Atmospheric Science
(NCAS). Hydro-JULES will deliver an open-source, three-dimensional community model of the
terrestrial water cycle. As part of work package 4, the BGS will develop an enhanced
representation of groundwater in Hydro-JULES and link it to land-surface processes, with the
aim of implementing the model on a global scale.
In cold regions, glaciers, ice sheets and permafrost influence regional groundwater flow and
recharge processes. This report aims to facilitate the inclusion of cryosphere–groundwater
systems in the Hydro-JULES modelling framework by reviewing potential modelling approaches
and then prioritising a set of model developments that should be undertaken as part of the
ongoing development of the Hydro-JULES modelling framework. All outputs from the HydroJULES programme (including this report) are open and freely available to ensure transparency
and auditability in the development of the scientific approach.