DOI: 10.1175/JCLI-D-13-00593.1
Scopus记录号: 2-s2.0-84920277506
论文题名: Separation of the effects of land and climate model errors on simulated contemporary land carbon cycle trends in the MPI earth system model version 1
作者: Dalmonech D. ; Zaehle S. ; Schürmann G.J. ; Brovkin V. ; Reick C. ; Schnur R.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 1 起始页码: 272
结束页码: 291
语种: 英语
Scopus关键词: Carbon
; Earth (planet)
; Errors
; Soil moisture
; Surface measurement
; Coupled models
; Ecological models
; Land surface modeling
; Model comparison
; Model evaluation/performance
; Climate models
; benchmarking
; carbon cycle
; carbon dioxide
; carbon flux
; climate modeling
; ecological modeling
; error analysis
; land surface
; primary production
; soil moisture
英文摘要: The capacity of earth system models (ESMs) to make reliable projections of future atmospheric CO2 and climate is strongly dependent on the ability of the land surface model to adequately simulate the land carbon (C) cycle. Defining "adequate" performance of the land model requires an understanding of the contributions of climate model and land model errors to the land C cycle. Here, a benchmarking framework is applied based on significant, observed characteristics of the land C cycle for the contemporary period, for which sufficient evaluation data are available, to test the ability of the JSBACH land surface component of the Max Planck Institute Earth System Model (MPI-ESM) to simulate landCtrends. Particular attention is given to the role of potential effects caused by climate biases, and therefore investigation is made of the results of model configurations in which JSBACH is interactively "coupled" to atmosphere and ocean components and of an "uncoupled" configuration, where JSBACH is driven by reconstructed meteorology. The ability of JSBACH to simulate the observed phase of phenology and seasonal C fluxes is not strongly affected by climate biases. Contrarily, noticeable differences in the simulated gross primary productivity and land C stocks emerge between coupled and uncoupled configurations, leading to significant differences in the decadal terrestrialC balance and its sensitivity to climate. These differences are strongly controlled by climate biases of the MPI-ESM, in particular those affecting soil moisture. To effectively characterize model performance, the potential effects of climate biases on the land C dynamics need to be considered during the development and calibration of land surface models. © 2015 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50898
Appears in Collections: 气候变化事实与影响
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作者单位: Biogeochemical Integration Department, Max Planck Institute for Biogeochemistry, Jena, Germany; Land in the Earth System Department, Max Planck Institute for Meteorology, Hamburg, Germany
Recommended Citation:
Dalmonech D.,Zaehle S.,Schürmann G.J.,et al. Separation of the effects of land and climate model errors on simulated contemporary land carbon cycle trends in the MPI earth system model version 1[J]. Journal of Climate,2015-01-01,28(1)