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Network Parallel Computing of Regional Soil and Water Erosion Model
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HU Shun-guang1,2,ZHANG Zeng-xiang1,XIA Kui-ju3,ZHANG Wei-wei1,ZHAO Xiao-li1,YI Ling1,ZUO Li-jun1,XU Jin-yong1(1.Institute of Remote Sensing Applications,Chinese Academy of Sciences,Beijing 100101,China,2.Graduate University of the Chinese Academy of Sciences,Beijing 100003,3.China University of Geosciences,Baoding,Hebei 071000,China)

Clc Number:

P98

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    Abstract:

    As the foundation for regional soil erosion model,Regional Soil Lose Model can be used for regional rainfall runoff and sediment forecasting, soil and water conservation and environmental issues to support regional macro decision-making.Currently,the model cannot be used effectively for large areas due to its slow computing speed.Aiming at the problems,this paper analyzed the model process and incorporated network parallel computing methodology and corresponding task scheduling rules into the model.The results show that the running time greatly reduced in the revised model and the computational efficiency significantly improved.This method provides a way to solve the problem caused by huge amount of data in GIS model with a feasible scheme.

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张宏鸣,杨勤科,李锐,刘晴蕊,王春梅,杜直前.区域水土流失模型的网络并行计算研究[J].水土保持通报英文版,2011,(1):141-144,230

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History
  • Received:July 02,2010
  • Revised:August 18,2010
  • Online: October 25,2012

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