环流指数

The intensity index of Hadley circulation is defined and calculated by using the 3 levels wind data in 4 key regions for the southern/northern hemisphere and the global.

利用3层4个关键区的风定义并计算了1948年l月－2004年12月的全球纬向平均的南／北半球和全球Hadley环流逐月强度指数。

Using the data of the sunspot number and based on its characteristics the time sequence of the magnetic index of the sunspot magnetic field is established. The intensity of the South Asia summer monsoon circulation index is established using the NCEP/NCAR reanalysis data from 1948to 2006 and the relationship between them is analyzed.

利用太阳黑子相对数资料，根据太阳磁场磁性特征建立了太阳磁场磁性指数时间序列，并利用NCEP/NCAR再分析资料建立了1948-2006年的南亚夏季风环流强度指数，对两者之间存在的可能相关关系作了分析。

The differences between mean monthly zonal wind anomalies at 850 hPa and 200 hPa are defined as the South China Sea Tropical Monsoon Index, the Walker Circulation Index and the Tropical Circulation Intensity Index, and the significance of these indexes for synoptic climatology is discussed.

何敏该文用850 hPa和200 hPa纬向风距平差定义南海热带季风、沃克环流及热带环流强度指数，并讨论它们的天气气候学意义。

With western Pacific subtropical high as the focus through diagnosis and simulation addressed are the following problems: a the change in northern hemisphere subtropical high and possible mechanisms during seasonal shift; b the index and circulation variation of east Asian monsoon; c Tropical air/sea-the monsoon interaction on an interannual scale, with the results given below.

以西太平洋副热带高压为核心，采用诊断和数值模拟方法讨论了如下问题：1、季节转换过程中的北半球副高变动及其可能机制；2、东亚季风指数与东亚季风环流变化；3、热带海气及其与东亚季风年际相互作用关系；研究表明

On the basis of a great deal of information, several general problem on land sarface process parametrization for a global circulation model and its history of development are described. The Bucket model, EARTH, ISBA and SiSPAT models are respectively expounded, and the situation of studies on land surface process parametrization is summarized. China is a participating country of the international geosphere-biosphere program and the study on circulation of global energy and moisture, and has put forward some valuable soil-vegetation-atmosphere models for land surface process parametrization. which results in effective studies on vegetation indexes.

在大量资料基础上，叙述了大气环流模式陆面过程参数化方案的一般问题及其发展历程，分别阐述了水桶模式、EARTH模式、ISBA模式和SiSPAT模式；总结了在陆面过程参数化方面的研究状况，我国参与了国际地圈生物圈计划和全球能量与水分循环的研究，特别是在陆面过程的参数化研究方面，提出了一些有价值的土壤—植物—大气模式，对植被指数进行了有成效的研究。

As a whole,the notable characteristic of primary productivity in size-fractioned structure was that nanoplankton occupied comparatively significant advantage in Beibu Gulf.Nanoplankton has the largest contribution to gross primary productivity,and picoplankton was the secondary contributor,while microplankton the least.The contribution of microplankton for primary productivity in the north Gulf was more than that in the other waters.Nanoplankton and picoplankton contribute more to the gross primary productivity in offshore deep waters than in inshore shallow waters3.The Beibu Gulf can be divided into three ecoregions:Region-Ⅰis the ecoregion in inshore shallow waters of the north Gulf.In average,the water depth is 18m,DIN is 1.88μmol/L,DIP is 0.20μmol/L,N:P is 9.4:1,dissolved silicate is 5.17μmol/L,the Chl a conentration in surface layer is 2.27mg·m~(-3),the assimilation index in surface layer is 3.80mg/,the primary productivity is 198.78mgC/(m~2·d), and potential fishery production is estimated to be 0.24gC/(m~2·a) according to the primary productivity.The ecoregion is mainly affected by the northern coastal water systems,and may be fit for aquaculture;Region-Ⅱis the ecoregion in offshore deep waters of the north Gulf and the coastal shallow waters to the west Hainan Island.In average,the water depth is 35m,DIN is 2.01μmol/L,DIP is 0.18μmol/L,N:P is 11.2:1,disovled silicate is 4.23μmol/L,the chlorophyll a of surface layer concentration is 1.45mg·m~(-3),the assimilation index of surface layer is 4.12 mg/,the primary productivity is 276.60mgC/(m~2·d),and the estimated potential fishery production is 0.34gC/(m~2·a) according to the primary productivity. The ecoregion was mainly influenced by ocean current from the South China Sea, rivers in the west coast of Hainan Island and the water from Qiongzhou Strait.It may be fit for aquaculture and fishery;Region-Ⅲis the ecoregion in offshore deep waters of the mid and south Gulf.In average,the water depth is 75m,DIN is 0.77μmol/L, DIP is 0.15μmol/L,N:P is 5.1:1,disovled silicate is 3.05μmol/L,the chlorophyll a of surface layer concentration is 0.70mg·m~(-3),the assimilation index of surface layer averaged is 3.69mg/,the primary productivity is 350.89mgC/(m~2·d),and the estimated potential fishery production is 0.43gC/(m~2·a) according to the primary productivity.The ecoregion was mainly affected by the circulation inside Beibu Gulf, and may be fit for fishery.

初级生产力的粒级结构的一个显著特点是总体上微型浮游生物在全调查海区均占较明显优势，对总初级生产力的平均贡献最大；微微型浮游生物对初级生产力的平均贡献次之；小型浮游生物对总初级生产力的平均贡献最小；湾北部小型浮游生物对初级生产力的平均贡献高于湾中部和湾南部，而湾中部和湾南部微型和微微型浮游生物对初级生产力的平均贡献高于湾北部，远岸深水区高于近岸浅水区。3、北部湾可以分为三个生态区：湾北部近岸浅水区，该区的环境主要特点是平均水深19m，DIN浓度平均值为1.88μmol/L，DIP浓度平均值为0.20μmol/L，N：P为9.4：1，硅酸盐浓度平均值为5.17μmol/L，表层叶绿素a平均值高达2.27 mg·m~(-3)，表层同化指数平均为3.80 mg/，初级生产力平均值198.78mgC/(m~2·d)，根据初级生产力计算潜在渔业资源碳生产量平均为0.24 gC/(m~2·a)，该区主要受湾北部沿岸水系影响，适合作为水产养殖区；湾北部深水区和海南岛西部沿岸浅水区，该区的环境主要特点是平均水深35m，DIN浓度平均值为2.01μmol/L，DIP浓度平均值为0.18μmol/L，N：P为11.2：1，硅酸盐浓度平均值为4.23μmol/L，表层叶绿素a平均值1.45 mg·m~(-3)，表层同化指数平均为4.12mg/，初级生产力平均值276.60 mgC/(m~2·d)，根据初级生产力计算潜在渔业资源碳生产量平均为0.34 gC/(m~2·a)，该区主要受南部湾口区海流向湾内延伸，沿岸海南岛河流注入湾内和琼州海峡过道水的影响，适合作为渔业作业区和水产养殖区；湾中部和南部远岸深水区，该区的环境主要特点是平均水深75m，DIN浓度平均值为0.77μmol/L，DIP浓度平均值为0.15μmol/L，N：P为5.1：1，硅酸盐浓度平均值为3.05μmol/L，表层叶绿素a平均值0.70 mg·m~(-3)，表层同化指数平均为3.69 mg/，初级生产力平均值350.89 mgC/(m~2·d)，根据初级生产力计算潜在渔业资源碳生产量平均为0.43 gC/(m~2·a)，该区主要受北部湾环流影响，适合作为渔业作业区。

The possible mechanism through which the winter AO influences winter air temperature in northeast China is that at the ground surface when the winter AO index is in a low phase,the Siberia high is strengthened,the winter monsoon over the East Asia is also strengthened,and northeast China undergoes a successive cold winter;and in the middle troposphere,when the winter AO is in its low phase,the East Asia trough is strengthened,the ridge west and north of Baikal Lake is also strengthened,the circulation develops meridionally,the northerly wind is strengthened,and northeast China undergoes successive coldwinter.

可能影响机制是：在地面，冬季北极涛动处于低指数期时，西伯利亚高压增强，亚洲大陆偏北冬季风增强，东北为持续冷冬期；在对流层中层，冬季北极涛动处于低指数期时，东亚大槽加深，贝加尔湖以西以北脊增强，环流呈经向型发展，东北对流层中层偏北风增强，东北为持续冷冬期。

The averaged onset time is the 28th pentad (72 pentads/year) for the EAM and the 32nd pentads for the INM coincided with the results obtained from the 15-year mean wind and geopotential fields. During the 15-year period, the early onset years are 1984,1994 and 1996 and the late onset years are 1982,1985,1987,1991 and 1993 in the EAM region.

结果表明，IWH是一个能够反映亚洲热带夏季风环流主要特征、适合用于确定季风建立迟早的指数；在1982～1996年期间，在东亚季风区，热带季风建立较早（比平均情况早2候或以上）的年份有1984、1994和1996年，建立较迟的年份有1982、1985、1987、1991和1993年；东亚热带季风建立时间的年际变化（标准差为2.3候）比印度季风大，反映东亚季风区环流变化较印度季风区更为复杂。

Asian summer monsoon, one of the earth′s most energetic weather events, undoubtedly plays a key role in the variability of the general circulation. In this paper, through both calculation for the correlation coefficients between the monsoon indices and the geopotential height and the anomalous composite of the strong or weak ASM pentads, it is shown that the activity of the ASM...

本文通过夏季风指数与北半球环流的相关计算以及强、弱季风候北半球环流异常合成的分析发现，亚洲夏季风的活动会激发北半球夏季大气环流遥相关型，其主要相关中心均出现在季风区的下游地区，即从亚洲经太平洋至北美洲一带，除了表现出正负中心交替出现的波列状结构外，该遥相关型在太平洋地区还表现为一对南北向的偶极子异常型，我们将这一遥相关型称为亚洲太平洋北美型

This paper conducts the computation classification for the spring flood and drought situation in He Zhou by using the spring precipitation data in four weather stations of He Zhou during 1965-2004,and the z index,and the index of regional flood and drought .

利用贺州市四站1965~2004年春季降水资料，运用z指数和区域旱涝指数对贺州地区春季旱涝情况进行计算分类，并对重旱涝典型年份500hPa环流特征量和4月平均环流场展开分析，发现：贺州地区春季极易发生局部旱涝灾情，90年代以来重旱涝年份出现频率明显增大；在重旱年副高强度强，西伸脊点明显偏西，南支槽偏西偏弱，极涡中心偏东，亚洲中高纬高度偏低，在重涝年则相反。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。