Sensitivity of Pliocene climate simulations in MRI-CGCM2.3 to respective boundary conditions
Accumulations of global proxy data are essential steps for improving reliability of climate model simulations for the Pliocene warming climate. In the Pliocene Model Intercomparison Project phase 2 (PlioMIP2), a part project of the Paleoclimate Modelling Intercomparison Project phase 4, boundary for...
Published in: | Climate of the Past |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2016
|
Subjects: | |
Online Access: | https://doi.org/10.5194/cp-12-1619-2016 https://doaj.org/article/94ef25fb08774013bdaf2c458bae7bf3 |
id |
ftdoajarticles:oai:doaj.org/article:94ef25fb08774013bdaf2c458bae7bf3 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:94ef25fb08774013bdaf2c458bae7bf3 2023-05-15T18:18:34+02:00 Sensitivity of Pliocene climate simulations in MRI-CGCM2.3 to respective boundary conditions Y. Kamae K. Yoshida H. Ueda 2016-08-01T00:00:00Z https://doi.org/10.5194/cp-12-1619-2016 https://doaj.org/article/94ef25fb08774013bdaf2c458bae7bf3 EN eng Copernicus Publications http://www.clim-past.net/12/1619/2016/cp-12-1619-2016.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 1814-9324 1814-9332 doi:10.5194/cp-12-1619-2016 https://doaj.org/article/94ef25fb08774013bdaf2c458bae7bf3 Climate of the Past, Vol 12, Iss 8, Pp 1619-1634 (2016) Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 article 2016 ftdoajarticles https://doi.org/10.5194/cp-12-1619-2016 2022-12-31T12:54:35Z Accumulations of global proxy data are essential steps for improving reliability of climate model simulations for the Pliocene warming climate. In the Pliocene Model Intercomparison Project phase 2 (PlioMIP2), a part project of the Paleoclimate Modelling Intercomparison Project phase 4, boundary forcing data have been updated from the PlioMIP phase 1 due to recent advances in understanding of oceanic, terrestrial and cryospheric aspects of the Pliocene palaeoenvironment. In this study, sensitivities of Pliocene climate simulations to the newly archived boundary conditions are evaluated by a set of simulations using an atmosphere–ocean coupled general circulation model, MRI-CGCM2.3. The simulated Pliocene climate is warmer than pre-industrial conditions for 2.4 °C in global mean, corresponding to 0.6 °C warmer than the PlioMIP1 simulation by the identical climate model. Revised orography, lakes, and shrunk ice sheets compared with the PlioMIP1 lead to local and remote influences including snow and sea ice albedo feedback, and poleward heat transport due to the atmosphere and ocean that result in additional warming over middle and high latitudes. The amplified higher-latitude warming is supported qualitatively by the proxy evidences, but is still underestimated quantitatively. Physical processes responsible for the global and regional climate changes should be further addressed in future studies under systematic intermodel and data–model comparison frameworks. Article in Journal/Newspaper Sea ice Directory of Open Access Journals: DOAJ Articles Climate of the Past 12 8 1619 1634 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
spellingShingle |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 Y. Kamae K. Yoshida H. Ueda Sensitivity of Pliocene climate simulations in MRI-CGCM2.3 to respective boundary conditions |
topic_facet |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
description |
Accumulations of global proxy data are essential steps for improving reliability of climate model simulations for the Pliocene warming climate. In the Pliocene Model Intercomparison Project phase 2 (PlioMIP2), a part project of the Paleoclimate Modelling Intercomparison Project phase 4, boundary forcing data have been updated from the PlioMIP phase 1 due to recent advances in understanding of oceanic, terrestrial and cryospheric aspects of the Pliocene palaeoenvironment. In this study, sensitivities of Pliocene climate simulations to the newly archived boundary conditions are evaluated by a set of simulations using an atmosphere–ocean coupled general circulation model, MRI-CGCM2.3. The simulated Pliocene climate is warmer than pre-industrial conditions for 2.4 °C in global mean, corresponding to 0.6 °C warmer than the PlioMIP1 simulation by the identical climate model. Revised orography, lakes, and shrunk ice sheets compared with the PlioMIP1 lead to local and remote influences including snow and sea ice albedo feedback, and poleward heat transport due to the atmosphere and ocean that result in additional warming over middle and high latitudes. The amplified higher-latitude warming is supported qualitatively by the proxy evidences, but is still underestimated quantitatively. Physical processes responsible for the global and regional climate changes should be further addressed in future studies under systematic intermodel and data–model comparison frameworks. |
format |
Article in Journal/Newspaper |
author |
Y. Kamae K. Yoshida H. Ueda |
author_facet |
Y. Kamae K. Yoshida H. Ueda |
author_sort |
Y. Kamae |
title |
Sensitivity of Pliocene climate simulations in MRI-CGCM2.3 to respective boundary conditions |
title_short |
Sensitivity of Pliocene climate simulations in MRI-CGCM2.3 to respective boundary conditions |
title_full |
Sensitivity of Pliocene climate simulations in MRI-CGCM2.3 to respective boundary conditions |
title_fullStr |
Sensitivity of Pliocene climate simulations in MRI-CGCM2.3 to respective boundary conditions |
title_full_unstemmed |
Sensitivity of Pliocene climate simulations in MRI-CGCM2.3 to respective boundary conditions |
title_sort |
sensitivity of pliocene climate simulations in mri-cgcm2.3 to respective boundary conditions |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/cp-12-1619-2016 https://doaj.org/article/94ef25fb08774013bdaf2c458bae7bf3 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Climate of the Past, Vol 12, Iss 8, Pp 1619-1634 (2016) |
op_relation |
http://www.clim-past.net/12/1619/2016/cp-12-1619-2016.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 1814-9324 1814-9332 doi:10.5194/cp-12-1619-2016 https://doaj.org/article/94ef25fb08774013bdaf2c458bae7bf3 |
op_doi |
https://doi.org/10.5194/cp-12-1619-2016 |
container_title |
Climate of the Past |
container_volume |
12 |
container_issue |
8 |
container_start_page |
1619 |
op_container_end_page |
1634 |
_version_ |
1766195185026334720 |