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Xinyu Wen xwen@pku.edu.cn June 2010

Xinyu Wen xwen@pku.edu.cn June 2010. Real-Time Weather Watching Climate Change Research Group Please visit http ://www.phy.pku.edu.cn/climate/wiki2/doku.php/services / 气候组天气站. Design Philosophy.

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Xinyu Wen xwen@pku.edu.cn June 2010

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  1. Xinyu Wenxwen@pku.edu.cn June 2010 Real-Time Weather WatchingClimate Change Research GroupPlease visithttp://www.phy.pku.edu.cn/climate/wiki2/doku.php/services/气候组天气站

  2. Design Philosophy • Usefulnot only for teachers and researchers, but also for students and amateurs by showing clear and easy-to-understand plots • Simpledevelop as simple scripts as possible for downloading and plotting, also for maintaining • Robustimprove the availability of the scripts, make it robust under a variety of emergencies, such as NOMADS problem/Internet access problem/PKU Campus Network problem, etc.

  3. Features • Automatically downloadreal-time data, FNL, provided by NOAA NOMADS3(getXXz.csh) • Automatically mark failed data/timestampin case Internet access was down(missinglist) • Automatically re-try those failed data/timestamp every noontime(manual.csh) • Automatically update webpages(getXXz.csh and manual.csh) 只要ClimateServer和物理学院的PhyServer开着就行，不论Internet是否可用，不论NOMADS3是否及时更新，不论学校网络是否有任何维护。Missinglist的机制使得本系统的容错能力大大加强！

  4. Cycle Schematic 每天更新4次 查缺补漏1次

  5. Domain In NCL: res@mpProjection= “LambertConformal” res@mpLambertParallel1F = 30 res@mpLambertParallel2F = 60 res@mpLambertMeridianF = 110 res@mpLimitMode = “Corners” res@mpLeftCornerLatF = 42 res@mpLeftCornerLonF = 37 res@mpRightCornerLatF = 3 res@mpRightCornerLonF = 142 This is what 1x1 grid looks like DATA: FNL global data assimilation system, 6-hourly, 1deg x 1deg grid, 26 pressure levels (1000, 975, 950, 925, 900, 850, 800, 750, 700, 650, 600, 550, 500, 450, 400, 350, 300, 250, 200, 150, 100, 70, 50, 30, 20, 10 mb), GRIB2 format Released by NOMADS3/NCEP/NOAA: http://nomad3.ncep.noaa.gov/pub/gdas/rotating/

  6. Demo 地面图显示： 地表2米温度 订正至海平面的气压 地表10米风场

  7. Demo 高空850百帕图显示： 大气柱总可降水量 850mb风场

  8. Demo 高空700百帕图显示： 对流潜能CAPE 700mb高度场 700mb风场

  9. Demo 高空500百帕图显示： 绝对涡度 500mb高度场 500mb风场

  10. Demo 两极500百帕图显示：500mb高度场。这是为了更好地显示500mb长波特征。

  11. Future Work • Use other dataset?NCEP 1; NCEP 2; GFS; • Provide future forecasts?GFS(0.5x0.5) 7-day forecasts; • More plots?cross-sections at Beijing; cross-sections at meridians; Stratosphere; 200mb; • Improve lag time?current is ~9 hours, any room to improve?

  12. 联系我们 xwen@pku.edu.cn 欢迎有兴趣的学生加入！

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