DOI: 10.1002/2015MS000469
Scopus记录号: 2-s2.0-84964447040
论文题名: Performance of the Goddard multiscale modeling framework with Goddard ice microphysical schemes
作者: Chern J ; -D ; , Tao W ; -K ; , Lang S ; E ; , Matsui T ; , Li J ; -L ; F ; , Mohr K ; I ; , Skofronick-Jackson G ; M ; , Peters-Lidard C ; D
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2016
卷: 8, 期: 1 起始页码: 66
结束页码: 95
语种: 英语
英文关键词: Atmospheric radiation
; Climate models
; Clouds
; Earth atmosphere
; Particle size
; Snow
; Supersaturation
; Systematic errors
; Atmospheric general circulation models
; Cloud parameterizations
; Cloud resolving model
; CloudSat
; Long term simulation
; Microphysical process
; Microphysics
; Superparameterization
; Ice
; CALIPSO
; climate modeling
; cloud microphysics
; cloud radiative forcing
; CloudSat
; EOS
; general circulation model
; parameterization
; satellite data
; spatial distribution
英文摘要: The multiscale modeling framework (MMF), which replaces traditional cloud parameterizations with cloud-resolving models (CRMs) within a host atmospheric general circulation model (GCM), has become a new approach for climate modeling. The embedded CRMs make it possible to apply CRM-based cloud microphysics directly within a GCM. However, most such schemes have never been tested in a global environment for long-term climate simulation. The benefits of using an MMF to evaluate rigorously and improve microphysics schemes are here demonstrated. Four one-moment microphysical schemes are implemented into the Goddard MMF and their results validated against three CloudSat/CALIPSO cloud ice products and other satellite data. The new four-class (cloud ice, snow, graupel, and frozen drops/hail) ice scheme produces a better overall spatial distribution of cloud ice amount, total cloud fractions, net radiation, and total cloud radiative forcing than earlier three-class ice schemes, with biases within the observational uncertainties. Sensitivity experiments are conducted to examine the impact of recently upgraded microphysical processes on global hydrometeor distributions. Five processes dominate the global distributions of cloud ice and snow amount in long-term simulations: (1) allowing for ice supersaturation in the saturation adjustment, (2) three additional correction terms in the depositional growth of cloud ice to snow, (3) accounting for cloud ice fall speeds, (4) limiting cloud ice particle size, and (5) new size-mapping schemes for snow and graupel. Despite the cloud microphysics improvements, systematic errors associated with subgrid processes, cyclic lateral boundaries in the embedded CRMs, and momentum transport remain and will require future improvement. © 2015. The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75940
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: Mesoscale Atmospheric Processes Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, United States; Science Systems and Applications, Inc., Lanham, MD, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Earth Sciences Division - Atmospheres, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Earth Sciences Division - Hydrospheric and Biospheric Sciences, NASA Goddard Space Flight Center, Greenbelt, MD, United States
Recommended Citation:
Chern J,-D,, Tao W,et al. Performance of the Goddard multiscale modeling framework with Goddard ice microphysical schemes[J]. Journal of Advances in Modeling Earth Systems,2016-01-01,8(1)