Uncertainty Analysis on Spatial Date in the Integrated Control System of Karst Rocky Desertification
Uncertainty is the process where the spatial process and character cannot be accurately verified, and it is an intrinsic specific property of each spatial phenomenon in nature.In order to set up the integrated control system of karst rocky desertification which is based on the geographic information system (GIS) platform, we have to determine the uncertainty originate of spatial data of this system in the first place, and then generalize the error in navigation system by contrasting the point located by global position system (GPS) with the system displaying coordinates, and finally draw the conclusion that the uncertainty on spatial date in the integrated control system of karst rocky desertification originates from mainly GPS geodesic data, map data, RS data, data converters, errors in the process of GIS analysis by analyzing the remote sensing (RS) data.It is allowable that the system displaying error is 0.018.
karst rocky desertification geographical informat-ion system spatial data uncertainty
Yongrong Zhang Zhongfa Zhou Qin Yang
The Department of Biology and Geography,LiuPanshui Normal College,Liupanshut,Guizhou,China,553004 The Institute of South China Karst,Guizhou Normal University,Guiyang,Guizhou,China,550001 The Department of Biology and Geography,LiuPanshui Normal College,Liupanshui,Guizhou,China,553004
国际会议
太原
英文
267-270
2011-02-26（万方平台首次上网日期，不代表论文的发表时间）