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Position: Home > Articles > The Study on Errors of Area for Belt-Spot using TM satellite Film Inner Mongolia Forestry Investigation and Design 2001,24 (2) 51-53

TM卫片上带状地物面积误差研究

作  者:
王瑞杰
单  位:
内蒙古大兴安岭森林调查规划院
关键词:
TM卫片;带状地物;面积;误差
摘  要:
以 1∶2 .5万比例尺TM卫片为主要信息源进行二类调查 ,在内蒙古大兴安岭林区 ,已全面实行两年。由于TM卫片与基本图比例尺一致 ,且TM卫片为多中心投影 ,近似于垂直投影 ,图面精度可达 98 1%。但是 ,在TM卫片处理过程中 (线性拉伸 ,边缘增强等人为因素使带状地物 (河流、道路等 )宽度增加 ,造成卫片上带状地物面积误差较大 ,精度较低 ,从而影响二类调查质量。文章通过对毕拉河林业局境内河流、道路、带状林地转绘面积误差进行研究 ,找出误差规律性 ,以便在带状地物面积求算时加以调整 ,提高二类调查面积精度 ,从而保证二类调查质量。
译  名:
The Study on Errors of Area for Belt-Spot using TM satellite Film
作  者:
WANG Rui-jie (Forest Service of Great Xing′an Mountains Inner Mongolia ,Yakeshi 022150,China)
关键词:
TM satellite film; belt-spot; area; error
摘  要:
Taking the information from the TM satellite film(1∶2.5),forest management has been getting on for 2 years in Great Xing′an Mountains area,Inner Monolia.In this paper,using rato;Tm satellite film and based map,some factors influenced the interpreting precision have been discussed. In the process of interpreting TM satellite film,Man-made errors,such as stretched line,reinforced edge,may take down the interpreting precision.In this paper,the date form.Bilahe district has been analysed to find the regularity for the river,roadand belt-spot.Form the experiment,the precision is up to 98.1%.

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