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4篇 您的检索式:作者名="Jennifer Hutchings"
    题名 作者 年代 出处 被引量
1Ocean Mixing with Lead-Dependent Subgrid Scale Brine Rejection Parameterization in a Climate Model显示文摘Sea ice thickness is highly spatially variable and can cause uneven ocean heat and salt flux on subgrid scales in climate models.Previous studies have demonstrated improvements in ocean mixing simulation using parameterization schemes that distribute brine rejection directly in the upper ocean mixed layer.In this study,idealized ocean model experiments were conducted to examine modeled ocean mixing errors as a function of the lead fraction in a climate model grid.When the lead is resolved by the grid,the added salt at the sea surface will sink to the base of the mixed layer and then spread horizontally.When averaged at a climate-model grid size,this vertical distribution of added salt is lead-fraction dependent.When the lead is unresolved,the model errors were systematic leading to greater surface salinity and deeper mixed-layer depth(MLD).An empirical function was developed to revise the added-salt-related parameter n from being fixed to lead-fraction dependent.Application of this new scheme in a climate model showed significant improvement in modeled wintertime salinity and MLD as compared to series of CTD data sets in 1997/1998 and 2006/2007.The results showed the most evident improvement in modeled MLD in the Arctic Basin,similar to that using a fixed n=5,as recommended by the previous Arctic regional model study,in which the parameter n obtained is close to 5 due to the small lead fraction in the Arctic Basin in winter.Meibing Jin Jennifer Hutchings Yusuke Kawaguchi Takashi Kikuchi 2012Journal of Ocean University of China2012,11,4:1
2Solvent-free oxidation of benzyl alcohol with oxygen using zeolite-supported Au and Au–Pd catalysts显示文摘Gang Li Dan I. Enache Jennifer Edwards Albert F. Carley David W. Knight Graham J. Hutchings 2006Catalysis Letters (-)2006,,12:1
3Palladiun and gold-palladium catalysts for the direct synthesis of hydrogen peroxide显示文摘Edwards Jennifer K Hutchings Graham J 2008Angew Chem Int Ed2008,47,:1
4Sensitivity study of subgrid scale ocean mixing under sea ice using a two-column ocean grid in climate model CESM显示文摘从海冰形成的盐水排水在海洋在极的海洋混合和 halocline 的季节的变化起一个关键作用。盐水排水和它的导致的传送对流的水平规模比当盐水排水在一个格子房间上被平均时,一个气候模型格子和一个模型趋于生产混合的假海洋的小得多。一个二列的海洋格子(TCOG ) 计划用联合的海冰海洋模型设定明确地解决在社区地球系统模型(CESM ) 被实现有或没有盐水拒绝的在一个模型格子的二亚列的不同垂直混合。有盐水拒绝的格子的部分被测试在一样的大气的数据从 1978 ~ 2009 强迫的一系列敏感模型跑等于铅部分或一个小经常的数字。模型结果与从 29 冰的观察相比在从 2004 ~ 2009 的北极海洋盆的拴住的剖析程序(ITP ) 。与用一个常规海洋格子的控制跑相比, TCOG 模拟在咸度显示出模型错误的一致减小并且混合了层深度(MLD ) 。用为盐水拒绝的一个小经常的部分格子的模型被发现与观察生产最好的模型比较,显示盐水排水的水平规模与海冰盖子相比是很小的并且比铅部分甚至小。比得上用盐水拒绝 parameterization 计划的模型, TCOG 在咸度完成了更多的改进但是在 MLD 类似。Meibing JIN Jennifer HUTCHINGS Yusuke KAWAGUCHI 2015Frontiers of Earth Science2015,9,4:0
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