计算机模型下二氧化碳的新面貌-凯发k8官网

计算机模型下二氧化碳的新面貌
文章来源:未知 文章作者:enread 发布时间:2014-11-19 05:34 字体: [ ] 
(单词翻译:双击或拖选)
an ultra-high-resolution nasa computer model has given scientists a 1 new look at how carbon dioxide in the atmosphere travels around the globe. 2 of carbon dioxide in the simulation 3 and shift as winds 4 the greenhouse gas away from its sources. the simulation also 5 differences in carbon dioxide levels in the northern and southern hemispheres and distinct swings in global carbon dioxide concentrations as the growth cycle of plants and trees changes with the seasons.
 
scientists have made ground-based measurements of carbon dioxide for decades and in july nasa launched the orbiting carbon observatory-2 (oco-2) satellite to make global, space-based carbon observations. but the simulation -- the product of a new computer model that is among the highest-resolution ever created -- is the first to show in such fine detail how carbon dioxide actually moves through the atmosphere.
 
"while the presence of carbon dioxide has dramatic global consequences, it's fascinating to see how local 6 sources and weather systems produce gradients of its concentration on a very regional scale," said bill putman, lead scientist on the project from nasa's goddard space flight center in greenbelt, maryland. "simulations like this, combined with data from observations, will help improve our understanding of both human 7 of carbon dioxide and natural 8 across the globe."
 
the carbon dioxide 9 was produced by a computer model called geos-5, created by scientists at nasa goddard's global modeling and assimilation office. in particular, the visualization is part of a simulation called a "nature run." the nature run ingests real data on 10 conditions and the emission of greenhouse gases and both natural and man-made 11. the model is then is left to run on its own and simulate the natural behavior of the earth's atmosphere. this nature run simulates may 2005 to june 2007.
 
while goddard scientists have been tweaking a "beta" version of the nature run internally for several years, they are now releasing this updated, improved version to the scientific community for the first time. scientists are presenting a first look at the nature run and the carbon dioxide visualization at the sc14 supercomputing conference this week in new orleans.
 
"we're very excited to share this revolutionary dataset with the modeling and data assimilation community," putman said, "and we hope the comprehensiveness of this product and its ground-breaking resolution will provide a platform for research and discovery throughout the earth science community."


点击收听单词发音收听单词发音  

1 nhgzdh     
adj.极好的;使人晕倒的
参考例句:
  • his plays are distinguished only by their stunning mediocrity.他的戏剧与众不同之处就是平凡得出奇。
  • the finished effect was absolutely stunning.完工后的效果非常美。
2 15625acbfa4517aa1374a6f1f44be446     
羽毛( plume的名词复数 ); 羽毛饰; 羽毛状物; 升上空中的羽状物
参考例句:
  • the dancer wore a headdress of pink ostrich plumes. 那位舞蹈演员戴着粉色鸵鸟毛制作的头饰。
  • the plumes on her bonnet barely moved as she nodded. 她点点头,那帽子的羽毛在一个劲儿颤动。
3 cgcyu     
v.(使)打漩,(使)涡卷;n.漩涡,螺旋形
参考例句:
  • the car raced roughly along in a swirl of pink dust.汽车在一股粉红色尘土的漩涡中颠簸着快速前进。
  • you could lie up there,watching the flakes swirl past.你可以躺在那儿,看着雪花飘飘。
4 ulxzl     
vi.使分散;使消失;vt.分散;驱散
参考例句:
  • the cattle were swinging their tails to disperse the flies.那些牛甩动着尾巴驱赶苍蝇。
  • the children disperse for the holidays.孩子们放假了。
5 a03402300df9f3e3716d9eb11aae5782     
给…加插图( illustrate的第三人称单数 ); 说明; 表明; (用示例、图画等)说明
参考例句:
  • this historical novel illustrates the breaking up of feudal society in microcosm. 这部历史小说是走向崩溃的封建社会的缩影。
  • alfred adler, a famous doctor, had an experience which illustrates this. 阿尔弗莱德 - 阿德勒是一位著名的医生,他有过可以说明这点的经历。 来自中级百科部分
6 vjnz4     
n.发出物,散发物;发出,散发
参考例句:
  • rigorous measures will be taken to reduce the total pollutant emission.采取严格有力措施,降低污染物排放总量。
  • finally,the way to effectively control particulate emission is pointed out.最后,指出有效降低颗粒排放的方向。
7 1a87f8769eb755734e056efecb5e2da9     
排放物( emission的名词复数 ); 散发物(尤指气体)
参考例句:
  • most scientists accept that climate change is linked to carbon emissions. 大多数科学家都相信气候变化与排放的含碳气体有关。
  • dangerous emissions radiate from plutonium. 危险的辐射物从钚放散出来。
8 fe973c05de3ff6dd2396188728b29a39     
连续的改变( flux的名词复数 ); 不稳定的状态; 不停的变化; 通量
参考例句:
  • in general, fluxes and forces may have different tensorial characters. 一般说来,力和通量可以具有不同的张量特征标。
  • the parameterized eddy fluxes simulatedthe seasonal and latitudinal variations reasonably well. 模拟出涡动通量的空间分布和时间变化。
9 5cb21f7c94235e860596a2dfd90ccf82     
n.想像,设想
参考例句:
  • in 2d visualization and drawing applications, vertical and horizontal scrolling are common. 在二维的可视化及绘图应用中,垂直和水平滚动非常普遍。 来自about face 3交互设计精髓
  • ophthalmoscopy affords the only opportunity for direct visualization of blood vessels. 检眼镜检查法提供直接观察血管的唯一机会。
10 6eayr     
adj.大气的,空气的;大气层的;大气所引起的
参考例句:
  • sea surface temperatures and atmospheric circulation are strongly coupled.海洋表面温度与大气环流是密切相关的。
  • clouds return radiant energy to the surface primarily via the atmospheric window.云主要通过大气窗区向地表辐射能量。
11 24011a21c8b46b35a9bfd904211c7c51     
n.微粒,粒子( particulate的名词复数 )
参考例句:
  • techniques for controlling particulates include filtering, washing, centrifugal separation, and electrostatic precipitation. 控制颗粒污染物的技术包括过滤、洗涤、离心分离、静电沉降。 来自英汉非文学 - 环境法 - 环境法
  • only micronic particulates penetrate to the depth of the lung. 只有微细粒子穿透到肺深部。 来自辞典例句
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