查询词典 assimilation

Experimental evidences on ideal and real data show that different weighting and scaling have different influence on the adjoint assimilation system,and the system has good ability of assimilation and the adjoint code method is a very effective tool.

通过理想场和实际资料进行的试验发现：权重系数和尺度因子选取的不同会对伴随模式同化系统产生不同的影响。试验表明伴随模式系统有较强的同化能力，对提高预报效果有积极的作用，用伴随码推导伴随模式是很有价值的工具。

Data assimilation ; adjoint model assimilation system ; precipitable water

资料同化；伴随模式同化系统；可降水量

Based on adjoint code technique, the adjoint assimilation system of MM4 model is developed, and the assimilation experiments of conventional and non-conventional data are carried out.

以中尺度模式MM4为基础，利用伴随码技术改进、完善了MM4伴随模式同化系统，并利用该系统进行了常规资料和非常规资料的伴随模式同化试验，例如加入了可降水量资料等。

In this paper, the MM5 Adjoint Assimilation System is used to correct MM5's terrain error. The experimental results of amending different initial terrain data indicate that: the MM5 AAS is able to retrieve the terrain field, whose resolution is matched with one of the initial meteorological element field and therefore well coordinated with the MM5 model. Thus a new way about how to widely use the assimilation system is offered in this paper.

将伴随模式同化系统应用于修正模式地形误差，通过对不同初始地形的修正试验表明，MM5伴随模式同化系统能很好地对地形误差进行修正，能够反演出与初始气象要素场分辨率相匹配、与模式更协调的地形场，为伴随模式同化系统的广泛应用提供了一种新的思路。

In this context conventional and non-conventional observations are assimilated by MM5 adjoint-model assimilation system so as to do research on the quality of the assimilation system and the role of CDW in improving the prediction.

本文就是利用MM5伴随模式同化系统，同化常规观测资料以及非常规资料，以研究该同化系统的特性以及卫星云导风资料对于改善预报所起的作用。

In order to find the impact of cloud drift winds on variational data assimilation system and to provide reference for operational forecast of tropical cyclone, firstly errors of water vapor winds and infrared cloud drift winds in different levels have been analyzed in this paper; then, cloud drift winds of geostationary meteorological satellites-GMS 5 have been added in the GRAPES three-dimensional variational data assimilation system with radiosonde data.

首先分析了不同通道和层次的静止气象卫星云迹风产品的误差特征；然后，把云迹风资料放到GRAPES三维变分同化系统中进行同化，通过将不同观测类型资料的同化结果进行对比，探讨了红外通道和水汽通道云迹风资料对数值预报分析场的影响；最后，把同化后的分析场作为初始场，用WRF模式对2002年"森拉克"台风做24小时预报实验。

The vertical diffusivity coefficient of the South China Sea is studied by the adjoint data assimilation method in this thesis. The satellite data SST and the harmonic constant of M2, S2, Kb 0, extracted from TOPEX/POSEIDON satellite altimeter are used in data assimilation. So the average of the vertical diffusivity coefficients of the South China Sea in the thermocline in January, April, July, October, 1997 are2.2 10-4/m2s-1, 7.8 10-5m2s-1 , 1.0 10-4m2s-1 , 1.0 10-4m2s-1 respectively.

本文是用伴随同化的方法研究南中国海垂直混合系数，将卫星观测SST数据和从TOPEX/POSEIDON卫星高度计提取的M_2，S_2，K_1，O_1分潮调和常数作为同化资料，得出1997年1、4、7、10月份的南中国海在温跃层处的垂直混合系数，它们的平均值分别是2.2×10~(-4)m~2s~(-1)， 7.8×10~(-5)m~2s~(-1)，1.0×10~(-4)m~2s~(-1)，1.0×10~(-4)m~2s~(-1)。

After it gets pasteurized all the valuable enzymes in milk are destroyed (lactase for the assimilation of lactose; galactase for the assimilation of galactose; phosphatase for the assimilation of calcium).

失去了多种宝贵酵素的牛奶，是不容易被消化的，那也是为甚麼许多儿童在喝完牛奶之后感到不适的原因。

After it gets pasteurized all the valuable enzymes in milk are destroyed (lactase for the assimilation of lactose; galactase for the assimilation of galactose; phosphatase for the assimilation of calcium).

但是当我们将脂肪打散成很小的例子时，许多人相信同时会产生一种化学物质称为—黄嘌呤氧化酶这是均质化的牛奶被认为容易造成癌症的原因。

As for the mid-June 2006 Mei-yu case, the assimilation of both kinds of data can help the simulation of radar reflectivity. Further investigations show that the assimilation of dropsonde and QuikSCAT data produces stronger southerly environmental winds in the Bilis case, resulting in a better simulated track than the runs without these data. In these runs, the simulated tracks are too far to the south compared with the observed. In the Kaemi case, the tracks of simulations without dropsonde/QuikSCAT data assimilation were shifted to the north/south of the observed track, respectively.

从影响实验研究发现，同化投落送及QuikSCAT资料后，碧利斯台风个案於模拟后期具有较强的南风分量，使其模拟路径不至於像未同化该两种资料者过於偏南；凯米台风个案同化投落送资料后於模拟后期具有较弱的南风分量，而同化QuikSCAT资料后则具有较强的南风分量，使其模拟路径不至於像未同化投落送及QuikSCAT资料者过於偏北及偏南，而与观测路径较为接近。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。