DOI: 10.1002/2014MS000419
Scopus记录号: 2-s2.0-84945444503
论文题名: A Simplified Land Model (SLM) for use in cloud-resolving models: Formulation and evaluation
作者: Lee J ; M ; , Khairoutdinov M
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2015
卷: 7, 期: 3 起始页码: 1368
结束页码: 1392
语种: 英语
英文关键词: Atmospheric radiation
; Boundary layer flow
; Boundary layers
; Budget control
; Clouds
; Large eddy simulation
; Moisture
; Soil moisture
; Soils
; Surface measurement
; Vegetation
; Diurnal cycle
; Land atmosphere interaction
; Land surface models
; Planetary boundary layers
; Shallow cumulus convection
; Atmospheric boundary layer
; air-soil interaction
; atmospheric modeling
; biophysics
; boundary layer
; broad-leaved forest
; canopy
; energy budget
; heat transfer
; land cover
; large eddy simulation
; latent heat flux
; planetary evolution
; soil moisture
; soil structure
; soil temperature
; soil-vegetation interaction
; thermodynamics
英文摘要: A Simplified Land Model (SLM) that uses a minimalist set of parameters with a single-layer vegetation and multilevel soil structure has been developed distinguishing canopy and undercanopy energy budgets. The primary motivation has been to design a land model for use in the System for Atmospheric Modeling (SAM) cloud-resolving model to study land-atmosphere interactions with a sufficient level of realism. SLM uses simplified expressions for the transport of heat, moisture, momentum, and radiation in soil-vegetation system. The SLM performance has been evaluated over several land surface types using summertime tower observations of micrometeorological and biophysical data from three AmeriFlux sites, which include grassland, cropland, and deciduous-broadleaf forest. In general, the SLM captures the observed diurnal cycle of surface energy budget and soil temperature reasonably well, although reproducing the evolution of soil moisture, especially after rain events, has been challenging. The SLM coupled to SAM has been applied to the case of summertime shallow cumulus convection over land based on the Atmospheric Radiation Measurements (ARM) Southern Great Plain (SGP) observations. The simulated surface latent and sensible heat fluxes as well as the evolution of thermodynamic profiles in convective boundary layer agree well with the estimates based on the observations. Sensitivity of atmospheric boundary layer development to the soil moisture and different land cover types has been also examined. © 2015. The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75985
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
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作者单位: School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, United States
Recommended Citation:
Lee J,M,, Khairoutdinov M. A Simplified Land Model (SLM) for use in cloud-resolving models: Formulation and evaluation[J]. Journal of Advances in Modeling Earth Systems,2015-01-01,7(3)