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Volume 18 Issue 6

Nov.  2001

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Article >  ADVANCES IN ATMOSPHERIC SCIENCES  > 2001 >  18(6): 1185-1191

The Parallel Computing of GPS Ray-shooting Model

  • 1.

    LASG, Institute of Atmospheric Physics, Chine,se Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics, Chine,se Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics, Chine,se Academy of Sciences, Beijing 100029


doi: 10.1007/s00376-001-0032-2

  • The Global Positioning System (GPS) ray-shooting model is a self-sufficient observation operator in GPS MET (Meteorology) data variational assimilation linking up the GPS observation data and the atmospheric state variables. But its huge computations make it impracticable in real data assimilation so far. In order to overcome this default, a parallel version of the GPS ray shooting model has been developed,and has been running successfully on the PC cluster manufactured under the support of the China National Key Development Planning Project for Basic Research: The Large Scale Scientific Computation Research.High speed-up and Efficiency as well as good scalability are obtained. This is an important step for this GPS observation operator to become practicable.
  • [1] ZHANG Xin, LIU Yuewei, WANG Bin, JI Zhongzhen, 2004: Parallel Computing of a Variational Data Assimilation Model for GPS/MET Observation Using the Ray-Tracing Method, ADVANCES IN ATMOSPHERIC SCIENCES, 21, 220-226.  doi: 10.1007/BF02915708
    [2] Bi Xunqiang, 1997: Parallel Computing of a Climate Model on the Dawn 1000 by Domain Decomposition Method, ADVANCES IN ATMOSPHERIC SCIENCES, 14, 569-572.  doi: 10.1007/s00376-997-0075-0
    [3] B.D.Kulkarni, Miss Shobha Nandargi, O.N.Dhar, 1995: Efficiency of Severe Recorded Rainstorms over Maharashtra State, ADVANCES IN ATMOSPHERIC SCIENCES, 12, 103-108.  doi: 10.1007/BF02661292
    [4] WANG Yunfeng, WANG Bin, 2003: The Variational Assimilation Experiment of GPS Bending Angle, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 479-486.  doi: 10.1007/BF02690806
    [5] KUANG Zheng, WANG Bin, YANG Hualin, 2003: A Rapid Optimization Algorithm for GPS Data Assimilation, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 437-441.  doi: 10.1007/BF02690801
    [6] Jidong GAO, Keith BREWSTER, Ming XUE, 2006: A Comparison of the Radar Ray Path Equations and Approximations for Use in Radar Data Assimilation, ADVANCES IN ATMOSPHERIC SCIENCES, 23, 190-198.  doi: 10.1007/s00376-006-0190-3
    [7] Jidong GAO, Keith BREWSTER, Ming XUE, 2008: Variation of Radio Refractivity with Respect to Moisture and Temperature and Influence on Radar Ray Path, ADVANCES IN ATMOSPHERIC SCIENCES, 25, 1098-1106.  doi: 10.1007/s00376-008-1098-x
    [8] Lei YIN, Fan PING, Jiahua MAO, Shuanggen JIN, 2023: Analysis on Precipitation Efficiency of the “21.7” Henan Extremely Heavy Rainfall Event, ADVANCES IN ATMOSPHERIC SCIENCES, 40, 374-392.  doi: 10.1007/s00376-022-2054-x
    [9] Zhang Xin, Wang Bin, Ji Zhongzhen, 2001: Performance of a Parallel Finite Difference Atmospheric General Circulation Model, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 1175-1184.  doi: 10.1007/s00376-001-0031-3
    [10] Xu Xiangde, 1991: The Effect of Spatial Structure Character of Heat Source on the Ray Path and the Evolution of Wave Energy of Meridional Wave Train, ADVANCES IN ATMOSPHERIC SCIENCES, 8, 87-98.  doi: 10.1007/BF02657367
    [11] Jie CAO, Qin XU, Haishan CHEN, Shuping MA, 2022: Hybrid Methods for Computing the Streamfunction and Velocity Potential for Complex Flow Fields over Mesoscale Domains, ADVANCES IN ATMOSPHERIC SCIENCES, 39, 1417-1431.  doi: 10.1007/s00376-021-1280-y
    [12] CAO Jie, Qin XU, 2011: Computing Streamfunction and Velocity Potential in a Limited Domain of Arbitrary Shape. Part II: Numerical Methods and Test Experiments, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 1445-1458.  doi: 10.1007/s00376-011-0186-5
    [13] Qin XU, CAO Jie, GAO Shouting, 2011: Computing Streamfunction and Velocity Potential in a Limited Domain of Arbitrary Shape. Part I: Theory and Integral Formulae, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 1433-1444.  doi: 10.1007/s00376-011-0185-6
    [14] ZHOU Yushu, 2013: Effects of Vertical Wind Shear, Radiation and Ice Microphysics on Precipitation Efficiency during a Torrential Rainfall Event in China, ADVANCES IN ATMOSPHERIC SCIENCES, 30, 1809-1820.  doi: 10.1007/s00376-013-3007-1
    [15] Feng ZHANG, Xin-Zhong LIANG, ZENG Qingcun, Yu GU, and Shenjian SU, 2013: Cloud-Aerosol-Radiation (CAR) ensemble monitoring system: Overall accuracy and efficiency, ADVANCES IN ATMOSPHERIC SCIENCES, 30, 955-973.  doi: 10.1007/s00376-012-2171-z
    [16] Binghao JIA, Xin LUO, Longhuan WANG, Xin LAI, 2023: Changes in Water Use Efficiency Caused by Climate Change, CO2 Fertilization, and Land Use Changes on the Tibetan Plateau, ADVANCES IN ATMOSPHERIC SCIENCES, 40, 144-154.  doi: 10.1007/s00376-022-2172-5
    [17] SUN Wenjuan, HUANG Yao, CHEN Shutao, ZOU Jianwen, ZHENG Xunhua, 2007: Dependence of Wheat and Rice Respiration on Tissue Nitrogen and the Corresponding Net Carbon Fixation Efficiency Under Different Rates of Nitrogen Application, ADVANCES IN ATMOSPHERIC SCIENCES, 24, 55-64.  doi: 10.1007/s00376-007-0055-4
    [18] RAO Jian, REN Rongcai, YANG Yang, 2015: Parallel Comparison of the Northern Winter Stratospheric Circulation in Reanalysis and in CMIP5 Models, ADVANCES IN ATMOSPHERIC SCIENCES, 32, 952-996.  doi: 10.1007/s00376-014-4192-2
    [19] Zou Chengzhi, Yang Peicai, Zhou Xiuji, 1986: THE EFFECT OF ASPECT RATIO ON THE BIFURCATION PROPERTIES OF A DOUBLE PARALLEL-CONNECTION LORENZ SYSTEM, ADVANCES IN ATMOSPHERIC SCIENCES, 3, 406-423.  doi: 10.1007/BF02657931
    [20] WU Xue*, WANG Xin, and LÜ Daren, 2014: Retrieval of Vertical Distribution of Tropospheric Refractivity through Ground-Based GPS Observation, ADVANCES IN ATMOSPHERIC SCIENCES, 31, 37-47.  doi: 10.1007/s00376-013-2215-z
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    • Manuscript History

    Manuscript received: 10 November 2001
    Manuscript revised: 10 November 2001
    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

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    The Parallel Computing of GPS Ray-shooting Model

    • 1. LASG, Institute of Atmospheric Physics, Chine,se Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics, Chine,se Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics, Chine,se Academy of Sciences, Beijing 100029
    • Manuscript received: 2001-11-10
    • Manuscript revised: 2001-11-10

    Abstract: The Global Positioning System (GPS) ray-shooting model is a self-sufficient observation operator in GPS MET (Meteorology) data variational assimilation linking up the GPS observation data and the atmospheric state variables. But its huge computations make it impracticable in real data assimilation so far. In order to overcome this default, a parallel version of the GPS ray shooting model has been developed,and has been running successfully on the PC cluster manufactured under the support of the China National Key Development Planning Project for Basic Research: The Large Scale Scientific Computation Research.High speed-up and Efficiency as well as good scalability are obtained. This is an important step for this GPS observation operator to become practicable.

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