The effect of a dynamic soil scheme on the climate of the mid-Holocene and the Last Glacial Maximum
In order to account for coupled climate–soil processes, we have developed a soil scheme which is asynchronously coupled to a comprehensive climate model with dynamic vegetation. This scheme considers vegetation as the primary control of changes in physical soil characteristics. We test the scheme fo...
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ftleibnizopen:oai:oai.leibnizopen.de:RDA374cBdbrxVwz64iJh 2023-06-11T04:17:14+02:00 The effect of a dynamic soil scheme on the climate of the mid-Holocene and the Last Glacial Maximum Stärz, Michael Lohmann, G. Knorr, G. 2016 https://repository.publisso.de/resource/frl:6408479 https://doi.org/10.5194/cp-12-151-2016 eng eng https://creativecommons.org/licenses/by/3.0/ Climate of the past, 12(1):151-170 2016 ftleibnizopen https://doi.org/10.5194/cp-12-151-2016 2023-05-07T23:23:24Z In order to account for coupled climate–soil processes, we have developed a soil scheme which is asynchronously coupled to a comprehensive climate model with dynamic vegetation. This scheme considers vegetation as the primary control of changes in physical soil characteristics. We test the scheme for a warmer (mid-Holocene) and colder (Last Glacial Maximum) climate relative to the preindustrial climate. We find that the computed changes in physical soil characteristics lead to significant amplification of global climate anomalies, representing a positive feedback. The inclusion of the soil feedback yields an extra surface warming of 0.24 °C for the mid-Holocene and an additional global cooling of 1.07 °C for the Last Glacial Maximum. Transition zones such as desert–savannah and taiga–tundra exhibit a pronounced response in the model version with dynamic soil properties. Energy balance model analyses reveal that our soil scheme amplifies the temperature anomalies in the mid-to-high northern latitudes via changes in the planetary albedo and the effective longwave emissivity. As a result of the modified soil treatment and the positive feedback to climate, part of the underestimated mid-Holocene temperature response to orbital forcing can be reconciled in the model. Other/Unknown Material taiga Tundra LeibnizOpen (The Leibniz Association) Climate of the Past 12 1 151 170 |
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Open Polar |
collection |
LeibnizOpen (The Leibniz Association) |
op_collection_id |
ftleibnizopen |
language |
English |
description |
In order to account for coupled climate–soil processes, we have developed a soil scheme which is asynchronously coupled to a comprehensive climate model with dynamic vegetation. This scheme considers vegetation as the primary control of changes in physical soil characteristics. We test the scheme for a warmer (mid-Holocene) and colder (Last Glacial Maximum) climate relative to the preindustrial climate. We find that the computed changes in physical soil characteristics lead to significant amplification of global climate anomalies, representing a positive feedback. The inclusion of the soil feedback yields an extra surface warming of 0.24 °C for the mid-Holocene and an additional global cooling of 1.07 °C for the Last Glacial Maximum. Transition zones such as desert–savannah and taiga–tundra exhibit a pronounced response in the model version with dynamic soil properties. Energy balance model analyses reveal that our soil scheme amplifies the temperature anomalies in the mid-to-high northern latitudes via changes in the planetary albedo and the effective longwave emissivity. As a result of the modified soil treatment and the positive feedback to climate, part of the underestimated mid-Holocene temperature response to orbital forcing can be reconciled in the model. |
author |
Stärz, Michael Lohmann, G. Knorr, G. |
spellingShingle |
Stärz, Michael Lohmann, G. Knorr, G. The effect of a dynamic soil scheme on the climate of the mid-Holocene and the Last Glacial Maximum |
author_facet |
Stärz, Michael Lohmann, G. Knorr, G. |
author_sort |
Stärz, Michael |
title |
The effect of a dynamic soil scheme on the climate of the mid-Holocene and the Last Glacial Maximum |
title_short |
The effect of a dynamic soil scheme on the climate of the mid-Holocene and the Last Glacial Maximum |
title_full |
The effect of a dynamic soil scheme on the climate of the mid-Holocene and the Last Glacial Maximum |
title_fullStr |
The effect of a dynamic soil scheme on the climate of the mid-Holocene and the Last Glacial Maximum |
title_full_unstemmed |
The effect of a dynamic soil scheme on the climate of the mid-Holocene and the Last Glacial Maximum |
title_sort |
effect of a dynamic soil scheme on the climate of the mid-holocene and the last glacial maximum |
publishDate |
2016 |
url |
https://repository.publisso.de/resource/frl:6408479 https://doi.org/10.5194/cp-12-151-2016 |
genre |
taiga Tundra |
genre_facet |
taiga Tundra |
op_source |
Climate of the past, 12(1):151-170 |
op_rights |
https://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.5194/cp-12-151-2016 |
container_title |
Climate of the Past |
container_volume |
12 |
container_issue |
1 |
container_start_page |
151 |
op_container_end_page |
170 |
_version_ |
1768376198568607744 |