共查询到20条相似文献，搜索用时 78 毫秒
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《中国气象科学研究院年报》1997,(1)
获奖项目ＡＷＡＲＤＳ１９９６年度中国气象科学研究院获奖项目一览表ＡｗａｒｄｓｏｆＣＡＭＳｉｎ１９９６获奖项目名称ＴｉｔｌｅｏｆＡｗａｒｄｓ获奖者姓名Ａｗａｒｄｅｅｓ（ｆｏｒＣＡＭＳｏｎｌｙ）获奖等级ＰｒｉｚｅＣｌａｓ南极气候与大气环境研究Ｓｔｕｄｙｏ... 相似文献
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ＣｌｉｍａｔｏｌｏｇｙａｎｄＩｎｔｅｒａｎｎｕａｌＶａｒｉａｂｉｌｉｔｙｏｆｔｈｅＳｏｕｔｈｅａｓｔＡｓｉａｎＳｕｍｍｅｒＭｏｎｓｏｏｎＫ．－Ｍ．ＬａｕＬａｂｏｒａｔｏｒｙｆｏｒＡｔｍｏｓｐｈｅｒｅｓ，Ｃｏｄｅ９１３，ＮＡＳＡ－ＧｏｄｄａｒｄＳｐａｃ... 相似文献
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ＡＧＣＭＳｔｕｄｙｏｎｔｈｅＭｅｃｈａｎｉｓｍｏｆＳｅａｓｏｎａｌＡｂｒｕｐｔＣｈａｎｇｅｓＷａｎｇＨｕｉｊｕｎ（王会军）ａｎｄＺｅｎｇＱｉｎｇｃｕｎ（曾庆存）（ＬＡＳＧ，ＩｎｓｔｉｔｕｔｅｏｆＡｔｍｏｓｐｈｅｒｉｃＰｈｙｓｉｃｓ，ＣｈｉｎｅｓｅＡｃ... 相似文献
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Ｃｏｍｐａｒｉｓｏｎ ｏｆ Ｓｕｒｆａｃｅ Ｗｉｎｄ Ｓｔｒｅｓｓ Ａｎｏｍａｌｉｅｓ ｏｖｅｒ ｔｈｅ Ｔｒｏｐｉｃａｌ Ｐａｃｉｆｉｃ Ｓｉｍｕｌａｔｅｄ ｂｙ ａｎ ＡＧＣＭ Ａｎｄ ｂｙ ａ Ｓｉｍｐｌｅ Ａｔｍｏｓｐｈｅｒｉｃ ＭｏｄｅｌＮ... 相似文献
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Mozheng Wei 《大气科学进展》1996,13(1):67-90
ＡＬｏｗ－ｏｒｄｅｒＭｏｄｅｌｏｆＴｗｏ－ｄｉｍｅｎｓｉｏｎａｌＦｌｕｉｄＤｙｎａｍｉｃｓｏｎｔｈｅＳｕｒｆａｃｅｏｆａＳｐｈｅｒｅＭｏｚｈｅｎｇＷｅｉ（ＣＲＣｆｏｒＳｏｕｔｈｅｒｎＨｅｍｉｓｐｈｅｒｅＭｅｔｅｏｒｏｌｏｇｙ，ＣＳＩＲＯＤｉｖｉｓｉｏ... 相似文献
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Ｔｈｅ Ｅａｓｔ Ａｓｉａｎ Ｍｏｎｓｏｏｎ Ｓｉｍｕｌａｔｉｏｎ ｗｉｔｈ ＩＡＰ ＡＧＣＭｓ－Ａ Ｃｏｍｐｏｓｉｔｅ ＳｔｕｄｙＷａｎｇＨｕｉｊｕｎａｎｄＢｉＸｕｎｑｉａｎｇ（ＩｎｓｔｉｔｕｔｅｏｆＡｔｍｏｓｐｈｅｒｉｃＰｈｙｓｉｃｓ（ＩＡＰ），... 相似文献
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Monsoons over China 总被引：14，自引：0，他引：14
《大气科学进展》1994,(2)
ＭｏｎｓｏｏｎｓｏｖｅｒＣｈｉｎａ￥ｂｙＤｉｎｇＹｉｈｕｉ（ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＭｅｔｅｏｒｏｌｏｇｉｃａｌＳｃｉｅｎｃｅｓ，Ｂｅｉｇｕｇ，Ｃｈｉｎａ）ＡＴＭＯＳＰＨＥＲＩＣＳＣＩＥＮＣＥＳＬＩＢＲＡＲＹ，１６Ｔｈｅｍｏｎｓｏｏｎｏｖｅｒ... 相似文献
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《中国气象科学研究院年报》1994,(1)
ＡＣＨＡＲＡＣＴＥＲＩＳＴＩＣＡＮＡＬＹＳＩＳＯＦＡＥＲＯＳＯＬＳＦＲＯＭＳＡＮＤＳＴＯＲＭＳＹａｎｇＤｏｎｇｚｈｅｎ（杨东贞），ＷａｎｇＣｈａｏ（王超）ａｎｄＹｕＸｉａｏｌａｎ（于晓岚）ＩｎｓｔｉｔｕｔｅｏｆＡｔｍｏｓｐｈｅｒｉｃＣｈｅｎｍｉｓｔｒ... 相似文献
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Simulation of East Asian Summer Monsoon with IAP CGCM 总被引：1，自引：0，他引：1
ＳｉｍｕｌａｔｉｏｎｏｆＥａｓｔＡｓｉａｎＳｕｍｍｅｒＭｏｎｓｏｏｎｗｉｔｈＩＡＰＣＧＣＭＣｈｅｎＱｉｙｉｎｇ（陈起英），①ＹｕＹｏｎｇｑｉａｎｇ（俞永强）ａｎｄＧｕｏＹｕｆｕ（郭裕福）ＩｎｓｔｉｔｕｔｅｏｆＡｔｍｏｓｐｈｅｒｉｃＰｈｙｓｉｃｓ，Ｃｈ... 相似文献
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WAVEWATCHIII模式在渤海海浪预报的应用与检验 总被引：2，自引：0，他引：2
大连黄海、渤海海浪数值预报系统采用WAVEWATCHIII模式进行海浪预报,预报产品包括48 h内浪高、周期、浪向的逐3 h预报,并对其进行检验。结果表明：WAVEWATCHIII模式对渤海中部浪高模拟较好,浪高预报TS为71.7 %,对近岸海区浪高模拟相对差些。个例的检验表明,浪高最大值模拟较好,模拟浪高最大值出现的时间与实况基本吻合,浪高变化趋势预报也较好。AVEWATCHIII模式对两个周期个例进行检验,预报误差最低可达到0.17 s,预报效果较好。 相似文献
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Many low-order modeling studies indicate that there may be multiple equilibria in the atmosphere induced by thermal and topographic forcings. However, most work uses uncoupled atmospheric model and just focuses on the multiple equilibria with distinct wave amplitude, i.e., the high- and low-index equilibria. Here, a low-order coupled land–atmosphere model is used to study the multiple equilibria with both distinct wave phase and wave amplitude. The model combines a two-layer quasi-geostrophic channel model and an energy balance model. Highly truncated spectral expansions are used and the results show that there may be two stable equilibria with distinct wave phase relative to the topography: one (the other) has a lower layer streamfunction that is nearly in (out of) phase with the topography, i.e., the lower layer ridges (troughs) are over the mountains, called ridge-type (trough-type) equilibria. The wave phase of equilibrium state depends on the direction of lower layer zonal wind and horizontal scale of the topography. The multiple wave phase equilibria associated with ridge- and trough-types originate from the orographic instability of the Hadley circulation, which is a pitch-fork bifurcation. Compared with the uncoupled model, the land–atmosphere coupled system produces more stable atmospheric flow and more ridge-type equilibrium states, particularly, these effects are primarily attributed to the longwave radiation fluxes. The upper layer streamfunctions of both ridge- and trough-type equilibria are also characterized by either a high- or low-index flow pattern. However, the multiple wave phase equilibria associated with ridge- and trough-types are more prominent than multiple wave amplitude equilibria associated with high- and low-index types in this study. 相似文献
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两层正压准平衡海洋模型的中纬度自由涡旋波动解 总被引：2，自引：2，他引：0
建立了具有瑞利摩擦且仅考虑大洋西海岸或同时考虑大洋东、西海岸的两层正压准平衡海洋模型,并做了解析求解,用以研究中纬度的自由涡旋波。得到的主要结论有:模型中该波动的解为波包。在仅考虑大洋西海岸时该波包的载频频率是连续谱;而同时考虑大洋东、西海岸时其为离散谱;且均有载频频率越高(周期越短)水平尺度越大的特点,对过分低频的波动,则会使准平衡的假定不再适用。模型中该波动波包载频的周期约在26天至24年。因考虑了摩擦,该波包的振幅随时间呈指数衰减,但摩擦系数的大小仅影响其衰减程度而不改变其空间结构,最终该波包振幅趋于0,故该两层正压海洋模型的解就趋于大气风场的强迫特解。模型中该波包的载频都是西传的;频率较高则西传较快,波包的特性和变形都很明显;频率低,则西传慢,其波形接近平面简谐波。在该两层正压模型中,该波动上层流场与正压模型中的流动类似,而下层海洋流动则其流速与上层海洋相同,而流向相反。该模型中该波动的性质是准平衡(准无辐散)的涡旋波,当摩擦不太大且其水平尺度在10km以上时,其性质则为准地转的Rossby波。 相似文献
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The purpose of this note is to estimate the accuracy and practical limitations of applying linear theory at a critical level over a realistic range of atmospheric stabilities for an idealized surface terrain. These estimates are made by comparing the results of a linear model with a nonlinear numerical model at a critical level. Essentially similar results are obtained from each model for wave stress, wave breaking height and wave dissipation through the critical level. Because gravity waves can be either evanescent or internal depending on the relative sizes of the Scorer parameter and the wavenumber of the ground surface disturbance, the somewhat paradoxical result develops that wave breaking and non-linearity increase with increasing bulk Richardson number. It is recommended that steady linear wave theory be used in gravity wave drag parameterizations provided near real time profiles of background velocity and temperature are available. 相似文献
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利用1951—2006年中央气象台寒潮天气过程数据以及NCEP/NCAR 500 hPa高度场等逐日再分析资料,通过客观聚类方法与主观对比分析确定寒潮爆发的典型形势场,结合寒潮过程特征量阈值,建立了基于TIGGE集合预报产品的寒潮自动识别客观预报方法,并利用TIGGE集合预报数据对2008年1月和2009年1月两次寒潮天气过程进行预报试验。结果表明:利用500 hPa高度距平场进行聚类分析,一方面可以消除环流季节特征对划分结果的影响,另一方面也突出了寒潮这种强天气的异常扰动表现;基于集合预报产品的寒潮自动识别预报方法浓缩了集合预报产品信息,可直接为预报员提供寒潮发生的概率预报,从而在集合预报产品与我国实际灾害性天气之间建立了直接联系。 相似文献
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The results of computation of wind wave fields for two versions of the WAM model (the original version of the European wind wave model WAM4 and its modified version WAM4-M) are compared with satellite measurements. The mapped data on the daily averaged wave height obtained from the data of combined measurements of several satellite altimeters are used. Significant correlation between wind wave series for both models and satellite data is demonstrated as well as the advantage of the WAM4-M model over its original version in accuracy and some statistical parameters of comparison with the altimeter. Advantages and shortcomings of numerical and remote sensing methods of wind wave investigation at the ocean scales are noted. 相似文献
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In this paper, the wind field provided by a meso-scale atmospheric model is employed. When main physical processes, including wave-current interactions, are considered, the latest version of the third generation wave model SWAN is applied to simulate the typhoon wave generated by Typhoon Winnie. The model results are compared with the TOPEX/POSEIDON and ERS-2 satellite altimeter data and analyzed in details. Then the distribution of wave fields are analyzed, with the results showing that applying SWAN to simulate large-scale domain can also fairly reproduce the observed features of waves and realistically reflect the distribution of typhoon waves. 相似文献
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基于WAVEWATCH-Ⅲ模式的近10年南海波候统计分析 总被引：1，自引：1，他引：0
基于国际上较为先进的第三代海浪数值模式WAVEWATCH-Ⅲ,以QuikSCAT/NCEP混合风场为驱动场,得到南海1999年8月-2009年7月的海浪场,并据此对近10 a南海的波候特征进行分析.结果表明:(1)南海受季风影响显著,风场和浪场的对应关系在季风盛行季节明显好于季风过渡季节.(2)南海南部海域的浪场对海表... 相似文献
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GFS对我国南方两次持续性降水过程的预报技巧评估 总被引：2，自引：1，他引：1
采用美国全球预报系统（Global Forecasting System,GFS）资料,利用谐波滤波提取空间长波、超长波分量,检验评估了GFS对2012年7月11—31日东亚地区大气环流场和降水的可预报能力。结果表明：GFS模式对东亚地区的中低层高度场预报可靠时效维持6 d以上,高层预报可靠时效可达10 d;长波、超长波的可预报效果显著,其中高度场长波5～8波的预报效果好于3～6波,风场则相反;GFS对我国南方两次持续性降水过程的可预报天数维持在8 d左右,并可提前2天预报出强降水带位置;模式对持续性降水过程预报相对站点观测降水量整体偏强。 相似文献