PLASIM–GENIE v1.0: a new intermediate complexity AOGCM
We describe the development, tuning and climate of Planet Simulator (PLASIM)–Grid-ENabled Integrated Earth system model (GENIE), a new intermediate complexity Atmosphere–Ocean General Circulation Model (AOGCM), built by coupling the Planet Simulator to the ocean, sea-ice and land-surface components...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2016-09-01
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| Series: | Geoscientific Model Development |
| Online Access: | http://www.geosci-model-dev.net/9/3347/2016/gmd-9-3347-2016.pdf |
| _version_ | 1811234440282636288 |
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| author | P. B. Holden N. R. Edwards K. Fraedrich E. Kirk F. Lunkeit X. Zhu |
| author_facet | P. B. Holden N. R. Edwards K. Fraedrich E. Kirk F. Lunkeit X. Zhu |
| author_sort | P. B. Holden |
| collection | DOAJ |
| description | We describe the development, tuning and climate of Planet Simulator (PLASIM)–Grid-ENabled Integrated Earth system model (GENIE), a new
intermediate complexity Atmosphere–Ocean General Circulation Model (AOGCM), built
by coupling the Planet Simulator to the ocean, sea-ice and land-surface
components of the GENIE Earth system model. PLASIM–GENIE supersedes
GENIE-2, a coupling of GENIE to the Reading Intermediate General Circulation Model (IGCM). The primitive-equation
atmosphere includes chaotic, three-dimensional (3-D) motion and interactive radiation and clouds,
and dominates the computational load compared to the relatively simpler
frictional-geostrophic ocean, which neglects momentum advection. The model
is most appropriate for long-timescale or large ensemble studies where
numerical efficiency is prioritised, but lack of data necessitates an
internally consistent, coupled calculation of both oceanic and atmospheric
fields. A 1000-year simulation with PLASIM–GENIE requires approximately 2
weeks on a single node of a 2.1 GHz AMD 6172 CPU. We demonstrate the
tractability of PLASIM–GENIE ensembles by deriving a subjective tuning
of the model with a 50-member ensemble of 1000-year simulations. The
simulated climate is presented considering (i) global fields of seasonal
surface air temperature, precipitation, wind, solar and thermal radiation,
with comparisons to reanalysis data; (ii) vegetation carbon, soil moisture
and aridity index; and (iii) sea surface temperature, salinity and ocean
circulation. Considering its resolution, PLASIM–GENIE reproduces the main
features of the climate system well and demonstrates usefulness for a wide
range of applications. |
| first_indexed | 2024-04-12T11:37:26Z |
| format | Article |
| id | doaj.art-50e37d25e60941d5bde837c703029ae2 |
| institution | Directory Open Access Journal |
| issn | 1991-959X 1991-9603 |
| language | English |
| last_indexed | 2024-04-12T11:37:26Z |
| publishDate | 2016-09-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Geoscientific Model Development |
| spelling | doaj.art-50e37d25e60941d5bde837c703029ae22022-12-22T03:34:48ZengCopernicus PublicationsGeoscientific Model Development1991-959X1991-96032016-09-01993347336110.5194/gmd-9-3347-2016PLASIM–GENIE v1.0: a new intermediate complexity AOGCMP. B. Holden0N. R. Edwards1K. Fraedrich2E. Kirk3F. Lunkeit4X. Zhu5Environment, Earth and Ecosystems, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UKEnvironment, Earth and Ecosystems, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UKMax Planck Institute of Meteorology, KlimaCampus, Bundesstraße 53, 20146 Hamburg, GermanyMeteorological Institute, University of Hamburg, Bundesstraße 55, 20146 Hamburg, GermanyMeteorological Institute, University of Hamburg, Bundesstraße 55, 20146 Hamburg, GermanyCenter for Earth System Research and Sustainability (CEN), University of Hamburg, Grindelberg 5, 20144 Hamburg, GermanyWe describe the development, tuning and climate of Planet Simulator (PLASIM)–Grid-ENabled Integrated Earth system model (GENIE), a new intermediate complexity Atmosphere–Ocean General Circulation Model (AOGCM), built by coupling the Planet Simulator to the ocean, sea-ice and land-surface components of the GENIE Earth system model. PLASIM–GENIE supersedes GENIE-2, a coupling of GENIE to the Reading Intermediate General Circulation Model (IGCM). The primitive-equation atmosphere includes chaotic, three-dimensional (3-D) motion and interactive radiation and clouds, and dominates the computational load compared to the relatively simpler frictional-geostrophic ocean, which neglects momentum advection. The model is most appropriate for long-timescale or large ensemble studies where numerical efficiency is prioritised, but lack of data necessitates an internally consistent, coupled calculation of both oceanic and atmospheric fields. A 1000-year simulation with PLASIM–GENIE requires approximately 2 weeks on a single node of a 2.1 GHz AMD 6172 CPU. We demonstrate the tractability of PLASIM–GENIE ensembles by deriving a subjective tuning of the model with a 50-member ensemble of 1000-year simulations. The simulated climate is presented considering (i) global fields of seasonal surface air temperature, precipitation, wind, solar and thermal radiation, with comparisons to reanalysis data; (ii) vegetation carbon, soil moisture and aridity index; and (iii) sea surface temperature, salinity and ocean circulation. Considering its resolution, PLASIM–GENIE reproduces the main features of the climate system well and demonstrates usefulness for a wide range of applications.http://www.geosci-model-dev.net/9/3347/2016/gmd-9-3347-2016.pdf |
| spellingShingle | P. B. Holden N. R. Edwards K. Fraedrich E. Kirk F. Lunkeit X. Zhu PLASIM–GENIE v1.0: a new intermediate complexity AOGCM Geoscientific Model Development |
| title | PLASIM–GENIE v1.0: a new intermediate complexity AOGCM |
| title_full | PLASIM–GENIE v1.0: a new intermediate complexity AOGCM |
| title_fullStr | PLASIM–GENIE v1.0: a new intermediate complexity AOGCM |
| title_full_unstemmed | PLASIM–GENIE v1.0: a new intermediate complexity AOGCM |
| title_short | PLASIM–GENIE v1.0: a new intermediate complexity AOGCM |
| title_sort | plasim genie v1 0 a new intermediate complexity aogcm |
| url | http://www.geosci-model-dev.net/9/3347/2016/gmd-9-3347-2016.pdf |
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