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...
Published in: | Geoscientific Model Development |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2010
|
Subjects: | |
Online Access: | https://doi.org/10.5194/gmd-3-105-2010 https://doaj.org/article/e8ad2a4f998c40c3a6cbdcc5c15a5c2c |
id |
ftdoajarticles:oai:doaj.org/article:e8ad2a4f998c40c3a6cbdcc5c15a5c2c |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:e8ad2a4f998c40c3a6cbdcc5c15a5c2c 2023-05-15T18:18:46+02:00 The efficient global primitive equation climate model SPEEDO V2.0 C. A. Severijns W. Hazeleger 2010-02-01T00:00:00Z https://doi.org/10.5194/gmd-3-105-2010 https://doaj.org/article/e8ad2a4f998c40c3a6cbdcc5c15a5c2c EN eng Copernicus Publications http://www.geosci-model-dev.net/3/105/2010/gmd-3-105-2010.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-3-105-2010 1991-959X 1991-9603 https://doaj.org/article/e8ad2a4f998c40c3a6cbdcc5c15a5c2c Geoscientific Model Development, Vol 3, Iss 1, Pp 105-122 (2010) Geology QE1-996.5 article 2010 ftdoajarticles https://doi.org/10.5194/gmd-3-105-2010 2022-12-31T09:12:42Z 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 (10 4 ) 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 mid-latitude 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. CO 2 doubling and future climate change scenario experiments show a climate sensitivity of 1.84 K W -1 m 2 , 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 Sea ice Directory of Open Access Journals: DOAJ Articles Geoscientific Model Development 3 1 105 122 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geology QE1-996.5 |
spellingShingle |
Geology QE1-996.5 C. A. Severijns W. Hazeleger The efficient global primitive equation climate model SPEEDO V2.0 |
topic_facet |
Geology QE1-996.5 |
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 (10 4 ) 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 mid-latitude 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. CO 2 doubling and future climate change scenario experiments show a climate sensitivity of 1.84 K W -1 m 2 , 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 |
C. A. Severijns W. Hazeleger |
author_facet |
C. A. Severijns W. Hazeleger |
author_sort |
C. A. Severijns |
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 |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doi.org/10.5194/gmd-3-105-2010 https://doaj.org/article/e8ad2a4f998c40c3a6cbdcc5c15a5c2c |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Geoscientific Model Development, Vol 3, Iss 1, Pp 105-122 (2010) |
op_relation |
http://www.geosci-model-dev.net/3/105/2010/gmd-3-105-2010.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-3-105-2010 1991-959X 1991-9603 https://doaj.org/article/e8ad2a4f998c40c3a6cbdcc5c15a5c2c |
op_doi |
https://doi.org/10.5194/gmd-3-105-2010 |
container_title |
Geoscientific Model Development |
container_volume |
3 |
container_issue |
1 |
container_start_page |
105 |
op_container_end_page |
122 |
_version_ |
1766195463921336320 |