王安宇
多年来主要从事数值天气预报的科研和教学工作
个性化签名
- 姓名:王安宇
- 目前身份:
- 担任导师情况:
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学术头衔:
博士生导师
- 职称:-
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学科领域:
动力气象学(包括数值天气预报与数值模拟等)
- 研究兴趣:多年来主要从事数值天气预报的科研和教学工作
王安宇教授,男,1939年5月12日生,陕西汉中人。1962年毕业于南京大学气象系。1962--1984年在中国科学院兰州高原大气物理所工作,任助理研究员,1980年9-10月在南斯拉夫进行数值天气预报考察,1985年1 月起执教于中山大学大气科学系,任讲师。1985年5-10月与美国科罗拉多州州立大学大气科学系进行合作科研,1987年起任副教授,硕士生导师,中国气象学会热带气象委员会委员,大气科学系热带气象研究室主任。1994年任教授,1994年9 月--1996年10月与美国国家大气研究中心进行合作科研。现任中山大学大气科学系博士导师。现任中国气象学会热带与海洋气象委员会副主任委员和中国气象学会气候学委员会委员。王安宇教授已在国内外核心刊物上发表学术论文60余篇。王安宇教授多年来主要从事数值天气预报的科研和教学工作,参加过多项国家自然科学基金项目、国家基础性重大研究项目、国家教委和中国科学院重点项目的研究工作,取得了许多具创造性的学术成果,发表了学术论文30多篇,其中三分之一以上在国内外的国际学术会议上宣读过。1982年他率先用数值试验方法证明青藏高原及其邻近地区的非绝热加热作用对于夏季对流层上层青藏高压的建立具有决定性的贡献,这项成果使他荣获1984年中国科学院重大科技成果二等奖。1990年他对季风提出一种新的定义方法,这种方法物理意义清楚,计算方便,已被很多气象专家用于研究季风的季节变化,这项成果1992年获广东省自然科学优秀学术论文二等奖。1993年他对美国俄勒冈州立大学二层大气环流模式进行了改进,加了一个边界层,使之成为一个三层模式。1984年至--1996年他在美国大气研究中心微尺度与中尺度气象研究室数值天气预报组工作时,将世界最先进的中尺度模式MM5改进成为一个区域气候模式并已用于我国气候的模拟研究,美国国家大气研究中心已将此项成果介绍到很多国家。1997至今与澳门地球物理暨气象局合作进行气象和环境方面的研究,建立了澳门数值天气预报业务模式。在教学方面,王安宇教授主要讲授“大气环流模式引论”、“大气环流”、“数值天气预报”等研究生和本科生课程,他和梁必骐教授等合作编著的教材“热带气象学”已被多所高校采用,并获中山大学第三届优秀教材奖(1995年),他与南京大学高国栋等合作编著的教材“气候学教程”已被全国高等学校教材编审领导小组推荐和审定为气候专业教材。
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王安宇, 冯瑞权, , 唐天毅, 吴池胜, 樊琦, 蒙伟光, 侯尔滨, 李江南
高原气象,2004,5(23):5802~586,-0001,():
-1年11月30日
用加进了奥勒冈州立大学陆面模式(OSULSM)的美国PSU/NCAR第五代中尺度模式(MM5)进行了减少土壤含水量对短期气候影响的模拟试验,目的在于探讨我国北方干旱化对短期气候的影响。试验结果表明,对整个模拟区域月降水总量没有明显的影响,但对不同地区有明显的影响。对月降水量较大地区的影响表现为使月降水量有一定程度的减少,而对月降水量中等以下地区的影响则相反,使月降水量略有增加。分析结果表明,其原因是土壤含水量减少会造成地面潜热通量减少、感热通量增加和陆面温度增高,最后生成一个浅薄的偏差热低压。这个偏差热低压在对流层低层有偏差辐合上升气流与之相配合,在对流层中层以上则与偏差辐散下沉气流相伴。这对于浅薄的降水系统的发展是有利的,但对于强大而深厚的降水系统的发展则不利。
土壤含水量, 气候, 中国北方, 干旱, 数值试验
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王安宇, 蒙伟光, ), 王安宇), 李江南), 冯瑞权, 侯尔滨)
大气科学,2004,3(28):330~341,-0001,():
-1年11月30日
利用MM5模式对发生在1998年5月23~24日华南暴雨和中尺度对流系统(Mesoscale Convective System,简称MCS)模拟的模式输出资料,根据湿位涡守恒原理和倾斜涡度发展理论分析了暴雨和MCS 形成和发展的原因。结果表明,暴雨和MCS发生在倾斜湿等熵面具有弱对流稳定性的下陷区,沿湿等熵面下滑的冷空气与倾斜上升并具有较强对流有效位能的暖湿空气在下陷区会合的过程中经历了对流稳定性减小的过程,导致暴雨和MCS发生发展区域有气旋性的涡旋发展。对流发展区域的上空满足条件对称不稳定发生的条件,MCS中上升气流呈倾斜状态。由于湿等熵面倾斜,在暴雨和MCS的发展过程中,水平风垂直切变和湿斜压度的增大也有利于涡旋的发展,使暴雨和MCS得以维持。最后,给出了华南地区湿等熵面上暴雨和MCS发生发展的一个物理概念模型。
湿位涡, 对称不稳定, 中尺度对流系统, 华南暴雨, 数值模拟
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王安宇, 吴池胜, 林文实, 杨艳, 冯瑞权, 古志明, 梁嘉静
高原气象,1999,3(18):400~408,-0001,():
-1年11月30日
使用1983年至1996年美国国家环境预测中心(NCEP)14年逐日平均2.5°×2.5°再分析的网格点资料对我国东部夏季风进退进行了仔细研究,并对夏季风进退作了新的定义。它既考虑了西南风的强度亦考虑了其暖湿程度。这比以前仅考虑暖湿程度要合理,按新定义计算的结果表明,我国夏季风推进有很明显的阶段性,夏季风的撤退非常迅速,这和观测结果符合。
夏季风的定义, 西南风, 假相当位温, 季风的推进和撤退
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王安宇, 尤丽钰
地理学报,1990,3(45):302~310,-0001,():
-1年11月30日
文章提出一种对流层低层季风定义的新方法。通过大量的资料分析,作者认为:对流层低层的风可以近似地看作是二部分的线性组合。一部分是非季风的行星风,这部分代表大气对海陆地形的动力强迫的响应;另一部分则是季风,这部分是大气对海陆地形的热力强迫响应。作者用多年平均的年平均风来代表行星风,这样分离出来的季风与经典季风相比有很多优点:1. 计算简单;2. 物理图象清楚;3. 便于划分季风区。
季风, 对流层低层, 行星风
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【期刊论文】The Climatic Characteristics of Summer Monsoon Onset in Asia①
王安宇, WANG Anyu, DING Yihui, FONG Soi-Kun, HAO I-Pan, WU Chisheng and LAM Kin-Hang
,-0001,():
-1年11月30日
We have calculated the 40-year pentad mean and monthly mean meteorological element fields from the NCEP 40-year reanalysis data. By using the mean data we proceed a climatic study of the establishment of the Asian summer monsoon onset. The study reveals that: (1) The establlShment of the Asian summer monsoon consists of three stages-the onset of monsoon over the Bay of Bengal In the 1st pentad of May, the onset of the SCS monsoon In the 4th pentad of May and the onset of Arabian Sea monsoon In the 2nd dented of June. (2) The onset of the monsoon over the Bay of Bengal reSults from the detoured norihwesterly flow of the northern Arabian Sea and the abrupt enhancement of the equatodal westerlies over 60
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王安宇, MENG Weiguang, WANG Anyu, LI Jiangnan, FONG Soikun, , and KU Chimeng
ACTA METEOROLOGICA SINICA Vol. 17 No.1 2003,-0001,():
-1年11月30日
Based on the NCEP/NCAR reanalysis data and observations collected during the SCSMEX, a mesoscale convective system (MCS) occurring over South China during 23-24 May 1998 has been studied with a numerical simulation using the Fifth Generation Penn-State/NCAR Mesoscale Modeling System (MM5). The successful simulations present us some interesting findings. The simulated MCS was a kind of meso-β scale system with a life cycle of about 11 hours. It generated within a small vortex along a cold front shear line. The MCS was characterized by severe convection. The simulated maximum vertical velocity was greater than 90 cm s-1, and the maximum divergence at about 400 hPa. The rainfall rate of MCS exceeded 20 mm h-1. To the right of the simulated MCS, a mesoscale low-level jet (mLLJ) was found. A strong southwesterly current could also be seen to the right of MCS above the mLLJ. This strong southwesterly current might extend up to 400 hPa. A column of cyclonic vorticity extended through most part of the MCS in the vertical direction. Additionally, the simulated MCS was compared favorably with the observational data in terms of location, precipitation intensity and evolution.
mesoscale convective system (, MCS), ,, mesoscale low-level jet (, mLLJ), ,, heavy rainfall,, South China first rainy season,, numerical simulation
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【期刊论文】Numerical nrediction exoeriment on Tvnhoon Maggie (9903)
王安宇, Fong Soi Kun, , Wu Chisheng, Hao I Pan, Lain Kin Hang, Ku Chi Meng, Wang Anyu, Lin Wenshi
ActaOceanologica Sinica, Vol. 20, No.2, pp. 171~181, 2001.,-0001,():
-1年11月30日
The movement of Typhoon Maggie (9903) in June 1999 isoneof the rare cases ever seen in the history. At 00U on June 6 Maggie was located at about 70km to the southwest of Taiwan. When it arrived at the coastal region of Shanwei City (22.8°N, 116.5°E), it turned suddenly to move south-westward along the southern China coastal line. On June 7 Maggie finally turned to move northward, making landfall to the north of Shangchuan Island. The experimental numerical prediction syst~n on ty-phoon movement that was designed based on MM5 is proved quite successful for the 48h prediction of Maggie' s movement and rainfall. The mean prediction error of typhoon track is 81 km for 0~ 24 h and 74 km for 24~48h. The location of typhoon center in the initial field of the model is approximately 100 km away from the actual observations. In order to modify the location of typhoon center, a bogus typhoon was intro-duced into the model and the prediction of typhoon track was improved in 0~24 h time interval. But the prediction error was enlarged in 24~36 h. We also performed a sensitivity experiment of changing the land of southern China into the ocean. It is found that the orientation of South China coastal line and the topography have no obvious effoct on the movement of Typhoon Maggie.
Typhoon movement,, numerical prediction,, South China coastal line
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【期刊论文】Numerical Prediction Experiment of An Advection Fog in Nanling Mountain Area∗
王安宇, Fan Qi, Wang Anyu, Fan Shaojia, Wu Dui, Deng Xuejiao and Liu Yingwei
,-0001,():
-1年11月30日
Now more comprehensive cloud microphysical processes have been included in advanced three-dimensional mesoscale meteorological model such as PSU/NCAR MM5 model, so the model can be used in the prediction of fog. In this paper, MM5 was utilized to simulate an advection fog occurring in Nanling Mountain area. The simulated results were compared with the facts obtained by detailed observation experiment. The results showed that the simulation was successful in the following aspects: (1) the formation and development of the fog; (2) the temporal variation of the maximum liquid water content; (3) the diffusion of the cold air, especially the temporal variation of the ground temperature and (4) the uplift of the air and the formation and development of the low-lever inversion. Besides, we did some sensitivity numerical experiments and discussed the effects of the radiation, the release of condensation latent heat and the change of soil moisture and temperature on the formation and development of fog. The success of numerical simulation experiment of fog has proved that the numerical forecasting of fog is promising.
Nanling Mountain,, advection fog,, numerical simulation,, sensitivity Experiments
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王安宇, Wang Anyu, Academia Sinica, Hu Qi and Qing Guanagyien, University of Lanzhou
,-0001,():
-1年11月30日
The influences of heat sources and orography in East Asia on the seasonal change of atmospheric circulation are investigated through numerical experimentation with a two-layer primitive equation model. Simulations show basic agreement with the observed ann.al variation of the average planetary troughs and ridges produced by the orography in East Asia. The simulated results with diabatic heating are more similar to climatology than those without diabatic heating. In addition, experi-mental results reveal that heating over East Asia has an important con-tribution to the southward progression and withdrawal of the westerly jet and the formation of the Tibetan summer anticyclone.
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【期刊论文】ADVANCE AND RETREAT OF THE SUMMER MONSOON IN CHINA*
王安宇, FONG Soi Kun, KU Chi Meng, HAO I Pan**, WANG Anyu, WU Chisheng and LIN Wenshi
ACTA METEOROLOGICA SINICA Vol. 14 No.1 2000,-0001,():
-1年11月30日
By using the daily-14 year (1983-1996) NCEP/NCAR 2.5
summer monsoon,, advance and retreat,, subtropical high
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