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1An Effective Configuration of Ensemble Size and Horizontal Resolution for the NCEP GEFS显示文摘Two important questions are addressed in this paper using the Global Ensemble Forecast System(GEFS) from the National Centers for Environmental Prediction(NCEP):(1) How many ensemble members are needed to better represent forecast uncertainties with limited computational resources?(2) What is the relative impact on forecast skill of increasing model resolution and ensemble size? Two-month experiments at T126L28 resolution were used to test the impact of varying the ensemble size from 5 to 80 members at the 500hPa geopotential height.Results indicate that increasing the ensemble size leads to significant improvements in the performance for all forecast ranges when measured by probabilistic metrics,but these improvements are not significant beyond 20 members for long forecast ranges when measured by deterministic metrics.An ensemble of 20 to 30 members is the most effective configuration of ensemble sizes by quantifying the tradeoff between ensemble performance and the cost of computational resources.Two representative configurations of the GEFS-the T126L28 model with 70 members and the T190L28 model with 20 members,which have equivalent computing costs-were compared.Results confirm that,for the NCEP GEFS,increasing the model resolution is more(less) beneficial than increasing the ensemble size for a short(long) forecast range.麻巨慧 Yuejian ZHU Richard WOBUS Panxing WANG 2012Advances in Atmospheric Sciences2012,29,4:5
2Embryonic stem cell-derived chondrogenic differentiation in vitro: activation by BMP-2 and BMP-4显示文摘Jan Kramer Claudia Hegert Kaomei Guan Anna M Wobus Peter K Müller Jürgen Rohwedel 2000Mechanisms of Development2000,,2:2
3Activin A-Induced Differentiation of Embryonic Stem Cells into Endoderm and Pancreatic Progenitors—The Influence of Differentiation Factors and Culture Conditions显示文摘Sabine Sulzbacher Insa S. Schroeder Thuy T. Truong Anna M. Wobus 2009Stem Cell Reviews and Reports2009,,2:2
4Embryonic stem cells:Prospects for developmental biology and cell therapy显示文摘WOBUS A M BOHELER K R 2005Physiological Reviews2005,85,2:1
5Pathology of immu- nodeficient mice with naturally occurring murine norovirus infec- tion显示文摘Ward JM Wobus CE Thaekray LB 2006Toxicol Pathol2006,34,6:1
6Specific effects of nerve growth factor on the differentiation pattern of mouse embryonic stem cells in vitro显示文摘Wobus AM Grosse R Schoneich J 1988Biomed Biochim Acta1988,47,12:1
7Expression of ADAM15 in lung carcinomas 显示文摘Schutz A Hartig W Wobus M 2005Virchows Arch2005,446,4:1
8Microbial diversity and functional characterization of sediments from reservoirs of different trophic state显示文摘Wobus A Bleul C Maassen S 2003FEMS Microbiology Ecology2003,46,:1
9显示文摘Wobus AM 1991Differentia1991,48,:1
10Activin A-Induced Differentiation of Embryonic Stem Cells into Endoderm and Pancreatic Progenitors—The Influence of Differentiation Factors and Culture Conditions显示文摘Sabine Sulzbacher Insa S. Schroeder Thuy T. Truong Anna M. Wobus 2009Stem Cell Reviews and Reports2009,,2:1
11Incorporation and integration of implanted myogenic and stem cells into native myocardial fibers: anatomic basis for functional improvement显示文摘Chedrawy EG Wang JS Wobus AM 2002J Thora Cardiovas Surg2002,124,3:1
12Over expression of insulinlike growth factor-Ⅱ in mouse embryonic stem cells promotes myogenic differentiation显示文摘Prelle K Wobus A M Krebs O 0,,03:1
13Differential response of antioxi dant compounds to salinity stress in salt tolerant and sah sensitiveseedings of foxtail millet显示文摘Sreenivasulu Grimm B Wobus U 2000Planta2000,109,:1
14Sugars as sigma molecules in plant seed development显示文摘Wobus U Weber H 1999Biol Chem1999,380,:1
15Differential response of antioxidant compounds to salinity stress in salt-tolerant and salt-sensitive seedings of faxtail millet显示文摘Sreenivasulu Grimm B Wobus U 2000Phsio1 Planta2000,109,:1
16STAT1 - depende,t innate immunity to a Norwalk - like virus 显示文摘Karst S M Wobus C E Lay M 2003Science2003,299,5612:1
17Potential of embryonic stem cells显示文摘 2001Mol Aspects Med2001,22,3:1
18Cardiomyocytes differentiated in vitro from embryonic stem cells developmentally express cardiac -specific genes and ionic currents显示文摘Maltsev VA Wobus AM Rohwedel J 1994Circ Res1994,75,:1
19Seed-development programs:a systems biology-based comparison between dicots and monocots显示文摘Sreenivasulu N Wobus U 2013Annu Rev Plant Biol2013,64,:1
20Differential response ofantioxidant compounds to salinitystress in salt-tolerant and salt-sensi-tive seedlings of foxtail millet(Setaria italica)显示文摘Sreenivasulu N Grimm B Wobus U 2000Physiol Plant2000,109,:1
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