DOI: 10.5194/cp-12-151-2016
Scopus记录号: 2-s2.0-84956644835
论文题名: The effect of a dynamic soil scheme on the climate of the mid-Holocene and the Last Glacial Maximum
作者: Stärz M. ; Lohmann G. ; Knorr G.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2016
卷: 12, 期: 1 起始页码: 151
结束页码: 170
语种: 英语
英文摘要: 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 0.24g°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. © 2016 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49070
Appears in Collections: 气候变化与战略
There are no files associated with this item.
Recommended Citation:
Stärz M.,Lohmann G.,Knorr G.. The effect of a dynamic soil scheme on the climate of the mid-Holocene and the Last Glacial Maximum[J]. Climate of the Past,2016-01-01,12(1)