Earth System Model Family

HadGEM3

HadGEM3 is a family of Met Office Hadley Centre climate models forming the basis for UK Earth system modeling.

Primary Institution Met Office
Scientific Domains Atmosphere, Ocean, Land Surface, Sea Ice, Ocean Biogeochemistry, Atmospheric Chemistry
Established 2009
Representative Member HadGEM3-GC31-LL
Website www.metoffice.gov.uk/research/modelling-systems/unified-model
Registry JSON-LD →
What is this? HadGEM3 is an earth system model family developed by Met Office , first established in 2009. It covers the Atmosphere, Ocean, Land Surface, Sea Ice, Ocean Biogeochemistry, Atmospheric Chemistry domains of Earth system science. The best-known member of this family is HadGEM3-GC31-LL.

Scientific Domains (6)

Atmosphere atmosphere
Ocean ocean
Land Surface land-surface
Sea Ice sea-ice
Ocean Biogeochemistry ocean-biogeochemistry
Atmospheric Chemistry atmospheric-chemistry

Description

HadGEM3 is a family of Met Office Hadley Centre climate models forming the basis for UK Earth system modeling.

Evolution & History
Evolved from HadGEM1/2, transitioned to NEMO ocean, enhanced resolution capabilities.
Scientific Basis
Non-hydrostatic atmospheric dynamics, primitive equation ocean dynamics, comprehensive land surface biogeophysics.

Institutions

Met Office Primary

Est. 1854 ROR ↗
National Centre for Atmospheric Science Collaborative
NCAS

Leeds, United Kingdom

Est. 2002 ROR ↗
National Oceanography Centre Collaborative
NOC

Southampton, United Kingdom

Est. 2010 ROR ↗
British Antarctic Survey Collaborative
BAS

Cambridge, United Kingdom

Est. 1962 ROR ↗

Scientific & Technical Characteristics

⚙️ Computational Requirements
100s to 1000s of processor cores, 2-8 GB memory per core
📐 Variation Dimensions
Horizontal resolution, atmospheric vertical levels, component selection, chemistry complexity.
📦 Software Dependencies
Unified Model build system, NEMO, CICE, JULES, OASIS3-MCT, NetCDF/HDF5, MPI
📄 Documentation
www.metoffice.gov.uk/research/approach/modelling-systems/unified-model/climate-models

Code & Development

Source Code Repository
code.metoffice.gov.uk/
Shared Code Base
Unified Model atmosphere, NEMO ocean, CICE sea ice, JULES land surface, OASIS coupler.
Programming Languages
Fortran 90Fortran 95C
License
Registration Required

References (1)

REF015 →

Technical Details

Resource Identifier (@id)
hadgem3
Validation Key
HadGEM3
JSON-LD Context
Resource Types
emdwcrp:model_familyesgvoc:ModelFamily