The efficient global primitive equation climate model SPEEDO V2.0
The efficient primitive-equation coupled atmosphere-ocean model SPEEDO V2.0 is presented. The model includes an interactive sea-ice and land component. SPEEDO is a global earth system model of intermediate complexity. It has a horizontal resolution of T30 (triangular truncation at wave number 30) an...
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ftunivwagenin:oai:library.wur.nl:wurpubs/430883 2024-02-04T10:02:50+01:00 The efficient global primitive equation climate model SPEEDO V2.0 Severijns, C.A. Hazeleger, W. 2010 application/pdf https://research.wur.nl/en/publications/the-efficient-global-primitive-equation-climate-model-speedo-v20 https://doi.org/10.5194/gmd-3-105-2010 en eng https://edepot.wur.nl/239998 https://research.wur.nl/en/publications/the-efficient-global-primitive-equation-climate-model-speedo-v20 doi:10.5194/gmd-3-105-2010 info:eu-repo/semantics/openAccess Wageningen University & Research Geoscientific Model Development 3 (2010) ISSN: 1991-959X in-situ intermediate complexity north-atlantic oscillation ocean circulation sensitivity simulations system thermohaline circulation tropical pacific variability info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2010 ftunivwagenin https://doi.org/10.5194/gmd-3-105-2010 2024-01-10T23:23:07Z The efficient primitive-equation coupled atmosphere-ocean model SPEEDO V2.0 is presented. The model includes an interactive sea-ice and land component. SPEEDO is a global earth system model of intermediate complexity. It has a horizontal resolution of T30 (triangular truncation at wave number 30) and 8 vertical layers in the atmosphere, and a horizontal resolution of 2 degrees and 20 levels in the ocean. The parameterisations in SPEEDO are developed in such a way that it is a fast model suitable for large ensembles or long runs (of O(104) years) on a typical current workstation. The model has no flux correction. We compare the mean state and inter-annual variability of the model with observational fields of the atmosphere and ocean. In particular the atmospheric circulation, the midlatitude patterns of variability and teleconnections from the tropics are well simulated. To show the capabilities of the model, we performed a long control run and an ensemble experiment with enhanced greenhouse gases. The long control run shows that the model is stable. CO2 doubling and future climate change scenario experiments show a climate sensitivity of 1.84KW-1m2, which is within the range of state-of-the-art climate models. The spatial response patterns are comparable to state-of-the-art, higher resolution models. However, for very high greenhouse gas concentrations the parameterisations are not valid. We conclude that the model is suitable for past, current and future climate simulations and for exploring wide parameter ranges and mechanisms of variability. However, as with any model, users should be careful when using the model beyond the range of physical realism of the parameterisations and model setup. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Sea ice Wageningen UR (University & Research Centre): Digital Library Pacific Geoscientific Model Development 3 1 105 122 |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
in-situ intermediate complexity north-atlantic oscillation ocean circulation sensitivity simulations system thermohaline circulation tropical pacific variability |
spellingShingle |
in-situ intermediate complexity north-atlantic oscillation ocean circulation sensitivity simulations system thermohaline circulation tropical pacific variability Severijns, C.A. Hazeleger, W. The efficient global primitive equation climate model SPEEDO V2.0 |
topic_facet |
in-situ intermediate complexity north-atlantic oscillation ocean circulation sensitivity simulations system thermohaline circulation tropical pacific variability |
description |
The efficient primitive-equation coupled atmosphere-ocean model SPEEDO V2.0 is presented. The model includes an interactive sea-ice and land component. SPEEDO is a global earth system model of intermediate complexity. It has a horizontal resolution of T30 (triangular truncation at wave number 30) and 8 vertical layers in the atmosphere, and a horizontal resolution of 2 degrees and 20 levels in the ocean. The parameterisations in SPEEDO are developed in such a way that it is a fast model suitable for large ensembles or long runs (of O(104) years) on a typical current workstation. The model has no flux correction. We compare the mean state and inter-annual variability of the model with observational fields of the atmosphere and ocean. In particular the atmospheric circulation, the midlatitude patterns of variability and teleconnections from the tropics are well simulated. To show the capabilities of the model, we performed a long control run and an ensemble experiment with enhanced greenhouse gases. The long control run shows that the model is stable. CO2 doubling and future climate change scenario experiments show a climate sensitivity of 1.84KW-1m2, which is within the range of state-of-the-art climate models. The spatial response patterns are comparable to state-of-the-art, higher resolution models. However, for very high greenhouse gas concentrations the parameterisations are not valid. We conclude that the model is suitable for past, current and future climate simulations and for exploring wide parameter ranges and mechanisms of variability. However, as with any model, users should be careful when using the model beyond the range of physical realism of the parameterisations and model setup. |
format |
Article in Journal/Newspaper |
author |
Severijns, C.A. Hazeleger, W. |
author_facet |
Severijns, C.A. Hazeleger, W. |
author_sort |
Severijns, C.A. |
title |
The efficient global primitive equation climate model SPEEDO V2.0 |
title_short |
The efficient global primitive equation climate model SPEEDO V2.0 |
title_full |
The efficient global primitive equation climate model SPEEDO V2.0 |
title_fullStr |
The efficient global primitive equation climate model SPEEDO V2.0 |
title_full_unstemmed |
The efficient global primitive equation climate model SPEEDO V2.0 |
title_sort |
efficient global primitive equation climate model speedo v2.0 |
publishDate |
2010 |
url |
https://research.wur.nl/en/publications/the-efficient-global-primitive-equation-climate-model-speedo-v20 https://doi.org/10.5194/gmd-3-105-2010 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic North Atlantic oscillation Sea ice |
genre_facet |
North Atlantic North Atlantic oscillation Sea ice |
op_source |
Geoscientific Model Development 3 (2010) ISSN: 1991-959X |
op_relation |
https://edepot.wur.nl/239998 https://research.wur.nl/en/publications/the-efficient-global-primitive-equation-climate-model-speedo-v20 doi:10.5194/gmd-3-105-2010 |
op_rights |
info:eu-repo/semantics/openAccess Wageningen University & Research |
op_doi |
https://doi.org/10.5194/gmd-3-105-2010 |
container_title |
Geoscientific Model Development |
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3 |
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1 |
container_start_page |
105 |
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122 |
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