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1)  intraseasonal oscillation
季节内振荡
1.
The NCEP/NCAR 850-hPa zonal wind reanalysis data are calculated by using the band-pass filter to study the propagating characters of the atmospheric intraseasonal oscillation(ISO) in the East Asian monsoon region.
将NECP/NCAR资料中850 hPa纬向风分量进行30~60天带通滤波,研究东亚季风区大气季节内振荡的传播特征。
2.
The NCEP/NCAR 850 hPa zonal wind reanalysis data are calculated by using the band-pass filter to study the atmospheric intraseasonal oscillation,which can express the activity character of the East Asian summer monsoon stream.
将NECP/NCAR资料中850 hPa纬向风分量进行30~60天带通滤波,用大气季节内振荡(ISO)来表征东亚夏季风涌的活动特征。
3.
Atmospheric intraseasonal oscillation(ISO) is very important in the long-range weather and climate variation.
大气季节内振荡(ISO)在长期天气和气候变化中有重要作用,它是20世纪70~80年代以来大气科学领域的重要研究课题。
2)  Madden-Julian Oscillation
季节内振荡
1.
Performance Contrast between Two Filters in Madden-Julian Oscillations Analysis;
季节内振荡研究中两种数字滤波器的性能对比
2.
The SST intraseasonal variability is closely associated with the structure of Madden-Julian oscillation(MJO).
SST季节内振荡过程与大气MJO的结构密切相关。
3.
Based on the data from remote sensing and in situ observation,and the re-analysis data of air-sea fluxes,lag correlation and composite analysis are used to analyze the physical structure of Madden-Julian oscillation(MJO)in the tropical Indian Ocean during winter.
利用最新的卫星遥感资料、现场观测资料以及海-气通量再分析资料,采用延时相关分析和合成分析方法,分析了冬季热带印度洋季节内振荡的物理结构。
3)  intra-seasonal oscillation
季节内振荡
1.
Furthermore, the features of intra-seasonal oscillation related to the onset of ENSO episode were also discussed.
在与1982/1983年强ENSO过程比较的基础上,揭示了1997/1998年ENSO暖事件发展迅速、强度极大、结束突然等关键性特点,进一步分析了这次暖事件爆发过程中热带印度洋和西太平洋大气季节内振荡的变化特点。
4)  monsoon ISO
季风季节内振荡
5)  intraseasonal oscillation
大气季节内振荡
1.
The possible changes of intraseasonal oscillation (ISO) feature in tropical atmosphere under the background of global climate warming by means of both diagnosis and numerical simulation are explored in this article.
论文主要通过诊断分析和数值模拟两种途径探讨了全球增暖背景下热带大气季节内振荡特征的可能变化。
6)  atmospheric intraseasonal oscillation
大气季节内振荡
1.
Some major studies and research achievements on the atmospheric intraseasonal oscillation and its important effects to other climate systems completed in the Institute of Atmospheric Physics during the last 10 years are reviewed and summarized systemati-cally in this paper, particularly some new scientific achievements.
大气季节内振荡(ISO)是上世纪80年代以来大气科学的重要前沿研究课题。
2.
The relationship between outbreak of the South China Sea Summer Monsoon in 1998 and the activity of atmospheric intraseasonal oscillation is systemically studied by using NCEP re-analysis and TBB (Temperature of Black Body) data.
利用NCEP再分析及TBB资料,系统地研究了1998年南海夏季风爆发与大气季节内振荡活动的关系,结果表明,1998年南海夏季风爆发与南海及其临近地区30~60天低频振荡的发展有着极为密切的关系。
补充资料:-戊内酯、3-甲基丁内酯、咖吗-戊内酯
CAS: 108-29-2
分子式: C5H8O2
分子质量: 100.12
沸点: 207-208℃
熔点: -31-208℃

中文名称: 4-戊内酯、γ-戊内酯、3-甲基丁内酯、咖吗-戊内酯

英文名称: dihydro-5-methyl-2(3H)-Furanone、dihydro-5-methyl-2(3h)-furanon、4-hydroxypentanoic acid lactone、4-hydroxyvaleric acid lactone、4-methyl-gamma-butyrolactone、gamma-methyl-gamma-butyrolactone、gamma-valerolakton

性质描述: 无色至微黄色液体。凝固点-31℃,沸点205-206.5℃,83-84℃(1.73kPa),相对密度(25/25℃)1.0578,折光率(nD25)1.4301。能与水、许多有机溶剂、树脂和蜡等混溶。10%水溶液的pH为4.2。

生产方法: 由不饱和羧酸通过闭环反应来合成,例如乙酰乙酸与硫酸共热,或乙酰丙酸在镍、铜等催化剂存在下加氢。

用途: γ-戊内酯有较强的反应能力,可用作树脂溶剂及各种有关化合物的中间体。也用作润滑剂、增塑剂、非离子型表面活性剂的胶凝剂、加铅汽油的内酯类添加剂,用于纤维素酯和合成纤维的染色。γ-戊内酯具有香兰素和椰子香味。我国GB2760-86规定为允许使用的食用香料。主要用以配制桃、椰子、香草等型香精。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条