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1.
人才培养     
<正>2012年7月5日,气科院2012年度研究生学位授予仪式暨毕业典礼隆重举行,共有16名博士研究生、45名硕士研究生顺利完成学业。2012年气科院共招收研究生58名,其中硕士研究生45名、博士研究生13名。截至2012年底,气科院有9名在站博士后。On 5 July 2012,the Master Degree Awarding Ceremony,i.e.,the Graduation Ceremony of CAMS was held with 16 PhD and 45MSc degrees conferred.In 2012,CAMS enrolled 58 graduate candidates,including 45 MSc and 13 PhD students.By the end of  相似文献   

2.
合作与交流     
<正>2012年2月21日,美国《大气研究》杂志主编Jose Luis Sanchez教授应邀访问气科院,并为科研人员做了"发表你的研究:《大气研究》杂志"学术报告,副院长张小曳主持报告会。At the invitation of CAMS,the Editor-in-Chief of US Journal of Atmospheric Research,Prof.Jose Luis Sanchez visited CAMS on 21 February 2012 and gave an academic speech titled"To Publish Your Science:Journal of Atmospheric Research".The seminar was hosted by CAMS Vice President,Prof.Zhang Xiaoye.  相似文献   

3.
The Academic Annual Meeting of the Chinese Academy of Meteorological Sciences was convened ceremoniously on 21 and 22 June 2001. It is the warmest academic meeting in the history of CAMS. Academician Ye Duzheng, Academician Tao Shiyan and Academician Wu Guoxiong (the Chinese Academy of Sciences), Administrator Qin Dahe and Deputy Administrator Yan Hong (the China Meteorological Administration), Prof. Zhang Dalin (the well-known Chinese-American scientist), Academician Li Zechun (the National Meteorological Center), and Academician Xu Jianmin (the National Satellite  相似文献   

4.
The Chinese Academy of Meteorological Sciences (CAMS) two-moment bulk microphysics scheme was adopted in this study to investigate the representation of cloud and precipitation processes under different environmental conditions.The scheme predicts the mixing ratio of water vapor as well as the mixing ratios and number concentrations of cloud droplets,rain,ice,snow,and graupel.A new parameterization approach to simulate heterogeneous droplet activation was developed in this scheme.Furthermore,the improved CAMS scheme was coupled with the Weather Research and Forecasting model (WRF v3.1),which made it possible to simulate the microphysics of clouds and precipitation as well as the cloud-aerosol interactions in selected atmospheric condition.The rain event occurring on 27-28 December 2008 in eastern China was simulated using the CAMS scheme and three sophisticated microphysics schemes in the WRF model.Results showed that the simulated 36-h accumulated precipitations were generally agreed with observation data,and the CAMS scheme performed well in the southern area of the nested domain.The radar reflectivity,the averaged precipitation intensity,and the hydrometeor mixing ratios simulated by the CAMS scheme were generally consistent with those from other microphysics schemes.The hydrometeor number concentrations simulated by the CAMS scheme were also close to the experiential values in stratus clouds.The model results suggest that the CAMS scheme performs reasonably well in describing the microphysics of clouds and precipitation in the mesoscale WRF model.  相似文献   

5.
An Shunqlng，Guo Anhong，Liu Gengshan，et al.Extreme drought events and their imPacts in North China:1961 to2000.WOrldResourceReview，16(l) B邵Jinyu，Xu Xiangde.Preliminary research on atmosPherie hydrologieal budget with its effeets overTibetanPlateau·JOurnalofGeograPhicaISeienees，14(]) Bao Ming。Ni Yunqi，Chou Jifan.The exPeriment of monthly mean eireulation Predietion using the analogy一dynamieal model.Chinese Se记nee Bulletin，49(12)‘ (SCI) Chan C Y， Zheng XD，Chan L…  相似文献   

6.
The year of 2001 saw greatachievements in China, and the ChineseAcademy of Meteorological Sciences (CAMS)also made great progresses in various aspects.  相似文献   

7.
Theworking time of the project is from 2001 to 2002. The main advancements obtained in 2001 are as follows.Project allocation: The PRC Ministry of Science and Technology approved the project on 15 February 2001. The project allocation meeting was convened in Beijing from 20 to 23 March 2001. CAMS and 11 provincial meteorological bureaus in West China undertake jointly the project.  相似文献   

8.
Approved by the China Meteorological Administration (CMA), the first council of the Chinese Academy of Meteorological Sciences came into existence. The members of the Council are appointed by CMA and the term is four years.Responsibilities of the Council are: deliberating the developmental strategy of CAMS, examining the long-term developmental programming of CAMS, determining the application and implementation of major research projects and  相似文献   

9.
人才培养     
2001年我院共录取博士研究生9名,硕士生24名,授予博士学位3名,硕士学位19名。目前我院在校博士研究生32名,硕士生62名。 CAMS enrolled 9 PhD and 24 MScstudents,conferred 3 doctoral and 19master’s degrees in 2001.Presently,there are　32 PhD and 62 MSc students intotal in CAMS.  相似文献   

10.
The CAWS600 automatic weather station was granted the use license by the China Meteorological Administration in September 2001. It is the first project whose products have put to use in CAMS and from which we obtain good social and economic benefits. The CAWS600 automatic weather station series and the corresponding sensors, such as temperature, humidity, radiation, etc., sensors, accompanying the finalization of the automatic weather station (AWS), also passed the product finalization successively and obtained the use licenses. Presently, these products have been released into the market and have had a certain market share. The recent years have seen a continuous increase in sales and in application fields. The new-type airport  相似文献   

11.
The boreal summer intraseasonal oscillation(BSISO) is simulated by the Climate System Model(CSM) developed at the Chinese Academy of Meteorological Sciences(CAMS), China Meteorological Administration. Firstly, the results indicate that this new model is able to reasonably simulate the annual cycle and seasonal mean of the precipitation, as well as the vertical shear of large-scale zonal wind in the tropics. The model also reproduces the eastward and northward propagating oscillation signals similar to those found in observations. The simulation of BSISO is generally in agreement with the observations in terms of variance center, periodicity, and propagation, with the exception that the magnitude of BSISO anomalous convections are underestimated during both its eastward propagation along the equator and its northward propagation over the Asian–Pacific summer monsoon region. Our preliminary evaluation of the simulated BSISO by CAMS-CSM suggests that this new model has the capability, to a certain extent, to capture the BSISO features, including its propagation zonally along the equator and meridionally over the Asian monsoon region.  相似文献   

12.
As shown in comparison and study of the HIRS-Tb12 data and conventional data, temperature, humidity and vertical motion are structured differently in the Southern and Northern Hemispheres, which are well depicted with the HIRS-Tb12 data. When high pressures rapidly decrease over the regions of South China Sea and Arabian Sea with the HIRS-Tb12 less than 200 W/m2, monsoons will set off in the South China Sea, Arabian Sea and Bay of Bengal, respectively. From a year of significant drought to one of significant floods, the trend of evolution is significantly different in the downdraft areas of the subtropical highs between the two hemispheres.  相似文献   

13.
The mobile incoherent Doppler lidar(MIDL),which was jointly developed by State Key Laboratory of Severe Weather(LaSW) of the Chinese Academy of Meteorological Sciences(CAMS) and Ocean University of China,provided meteorological services during the Olympic sailing events in Qingdao in 2008.In this study,two experiments were performed based on these measurements.First,the capabilities of MIDL detection of sea-surface winds were investigated by comparing its radial velocities with those from a sea buoy.MIDL radial velocity was almost consistent with sea-buoy data;both reflected the changes in wind with time.However,the MIDL data was 0.5 m s 1 lower on average than the sea-buoy data due to differences in detection principle,sample volume,sample interval,spatial and temporal resolution.Second,the wind fields during the Olympic sailing events were calculated using a four-dimensional variation data assimilation(4DVAR) algorithm and were evaluated by comparing them with data from a sea buoy.The results show that the calculations made with the 4DVAR wind retrieval method are able to simulate the fine retrieval of sea-surface wind data-the retrieved wind fields were consistent with those of sea-buoy data.Overall,the correlation coefficient of wind direction was 0.93,and the correlation coefficient of wind speed was 0.70.The distribution of retrieval wind fields was consistent with that of MIDL radial velocity;the root-mean-square error between them had an average of only 1.52 m s 1.  相似文献   

14.
Doppler weather radar can provide the wind information such as the radial velocity,and hasbecome one of the most powerful means for studies of severe mesoscale and microscale weathersystems.Usually the radar observation provides only plane position indicator(PPI)scanning dataand range height indicator(RHI)scanning data.and this makes some retrieval methods usingthree-dimensional volume scanning data impractical in operation.In order to use these data moreefficiently,a plane assimilation retrieval(PAR)method is developed using data assimilationtechnique on the PPI scanning plane.The PAR method is tested with the observation data ofChinese Academy of Meteorological Sciences(CAMS)Doppler weather radar and the result isencouraging.  相似文献   

15.
The characteristics of the atmospheric boundary layer height over the global ocean were studied based on the Constellation Observation System of Meteorology, Ionosphere and Climate (COSMIC) refractivity data from 2007 to 2012. Results show that the height is much characteristic of seasonal, inter-annual and regional variation. Globally, the spatial distribution of the annual mean top height shows a symmetrical zonal structure, which is more zonal in the Southern Hemisphere than in the Northern Hemisphere. The boundary layer top is highest in the tropics and gradually decreases towards higher latitudes. The height is in a range of 3 to 3.5 km in the tropics, 2 to 2.5 km in the subtropical regions, and 1 to 1.5 km or even lower in middle and high latitudes. The diurnal variation of the top height is not obvious, with the height varying from tens to hundreds of meters. Furthermore, it is different from region to region, some regions have the maximum height during 9:00 to 12:00, others at 15:00 to 18:00.  相似文献   

16.
Petermann Glacier is a marine-terminating outlet glacier that had a 70 km-long floating ice tongue prior to a～270 km2calving event that was observed from satellite sensors in August 2010,shortening the ice tongue by～27 km.Further,in July 2012,another 10 km was lost through calving.In order to understand these events in perspective,here the authors perform a long-term data analysis of Petermann Glacier calving-front variability and ice velocity for each year in the 1990s–2000s,supplemented by available observations from the previous three decades.Five major(on the order of 100 km2)calving events are identified,with～153 km2calved from1959 to 1961,～168 km2in 1991,～71 km2in 2001,～270 km2in 2010,and～130 km2in 2012—as well as～31km2calved in 2008.The increased frequency of major calving events in recent years has left the front terminus position retreated nearly 25 km beyond the range of observed in previous decades.In contrast,stable ice-dynamics are suggested from ice-velocity measurements made each year between 1993–2012,which are on average1063 m yr–1,with limited interannual variability and no significant trend;moreover,there is no apparent relationship between ice-velocity variability and calving events.The degree to which the massive calving events in 2010and 2012 represent natural episodic variability or a response to atmospheric and/or oceanic changes remains speculative;however,melt-induced weakening of the floating ice tongue in recent years is strongly suggested.  相似文献   

17.
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18.
We are very pleased to announce that our journal of Advances in Atmospheric Sciences （AAS） has been accepted for inclusion in the ＂Science Citation Index＂ （SCI） database beginning with its 2009 volume, as recently informed by Mr. Rodney Chonka, Editor of Physical, Chemical ＆ Earth Sciences of Thomson Reuters. We believe that this upgrade is a result of our many years editorial and community effort in improving the publication quality of AAS. It was preceded by important changes in editorial procedures in 2002, such as more strict quality control for English readability,  相似文献   

19.
In this study, we analyzed the dynamical evolution of the ma jor 2012-2013 Northern Hemisphere （NH） stratospheric sudden warming （SSW） on the basis of ERA-Interim reanalysis data provided by the ECMWF. The intermittent upward-propagating planetary wave activities beginning in late November 2012 led to a prominent wavenumber-2 disturbance of the polar vortex in early December 2012. However, no major SSW occurred. In mid December 2012, when the polar vortex had not fully recovered, a mixture of persistent wavenumber-1 and -2 planetary waves led to gradual weakening of the polar vortex before the vortex split on 7 January 2013. Evolution of the geopotential height and Eliassen-Palm flux between 500 and 5 hPa indicates that the frequent occurrence of tropospheric ridges over North Pacific and the west coast of North America contributed to the pronounced upward planetary wave activities throughout the troposphere and stratosphere. After mid January 2013, the wavenumber-2 planetary waves became enhanced again within the troposphere, with a deepened trough over East Asia and North America and two ridges between the troughs. The enhanced tropospheric planetary waves may contribute to the long-lasting splitting of the polar vortex in the lower stratosphere. The 2012-2013 SSW shows combined features of both vortex displacement and vortex splitting. Therefore, the anomalies of tropospheric circulation and surface temperature after the 2012-2013 SSW resemble neither vortex-displaced nor vortex-split SSWs, but the combination of all SSWs. The remarkable tropospheric ridge extending from the Bering Sea into the Arctic Ocean together with the resulting deepened East Asian trough may play important roles in bringing cold air from the high Arctic to central North America and northern Eurasia at the surface.  相似文献   

20.
Outputs from a high-resolution data assimilation system,the global Hybrid Coordinate Ocean Model and Navy Coupled Ocean Data Assimilation （HYCOM＋NCODA） 1/12° analysis,were analyzed for the period September 2008 to February 2012.The objectives were to evaluate the performance of the system in simulating ocean circulation in the tropical northwestern Pacific and to examine the seasonal to interannual variations of the western boundary currents.The HYCOM assimilation compares well with altimetry observations and mooring current measurements.The mean structures and standard deviations of velocities of the North Equatorial Current （NEC）,Mindanao Current （MC） and Kuroshio Current （KC） also compare well with previous observations.Seasonal to interannual variations of the NEC transport volume are closely correlated with the MC transport volume,instead of that of the KC.The NEC and MC transport volumes mainly show well-defined annual cycles,with their maxima in spring and minima in fall,and are closely related to the circulation changes in the Mindanao Dome （MD） region.In seasons of transport maxima,the MD region experiences negative SSH anomalies and a cyclonic gyre anomaly,and in seasons of transport minima the situation is reversed.The sea surface NEC bifurcation latitude （NBL） in the HYCOM assimilation also agrees well with altimetry observations.In 2009,the NBL shows an annual cycle similar to previous studies,reaching its southernmost position in summer and its northernmost position in winter.In 2010 and 2011,the NBL variations are dominantly influenced by La Ni（n）a events.The dynamics responsible for the seasonal to interannual variations of the NEC-MC-KC current system are also discussed.  相似文献   

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