[1]张笑,陈刚,段淼然,等.南方复合地貌区DEM内插算法的对比研究[J].水土保持研究,2015,22(05):106-112.
　ZHANG Xiao,CHEN Gang,DUAN Miaoran,et al.Comparative Study of Different DEM Interpolation Algorithms in the Southern Complex Geomorphologic Zone[J].Research of Soil and Water Conservation,2015,22(05):106-112.
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南方复合地貌区DEM内插算法的对比研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 22 期数: 2015年05期 页码: 106-112 栏目: 出版日期: 2015-10-28
Title:
Comparative Study of Different DEM Interpolation Algorithms in the Southern Complex Geomorphologic Zone
作者:
张笑1,2, 陈刚1,2, 段淼然1,2, 薛梦姣1,2, 陈瑞芳1,2
1. 江苏省地理信息技术重点实验室, 南京 210023;
2. 南京大学 地理信息科学系, 南京 210023
Author(s):
ZHANG Xiao1,2, CHEN Gang1,2, DUAN Miaoran1,2, XUE Mengjiao1,2, CHEN Ruifang1,2
1. Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Nanjing 210023, China;
2. Department of Geographic Information Science, Nanjing University, Nanjing 210023, China
关键词:
数字高程模型(DEM); 空间内插; 南方复合地貌; 精度评价
Keywords:
digital elevation model; interpolation algorithms; southern complex geomorphology; accuracy assessment
分类号:
P208
摘要:
数字高程模型是数字地形分析的重要数据基础，在土壤、水文、地貌、生态环境、地质灾害、农业等领域均有广泛应用。插值生成的DEM精度与插值算法本身特性、插值区域地貌类型都密切相关，研究插值算法对不同地貌类型的拟合精度差异，对提高DEM插值精度具有重要意义。以平原丘陵兼有、水网密集分布的南方复合地貌区为研究区，对ANUDEM，IDW，Kriging，Spline，NNI，TIN六种插值算法生成的DEM分别从总体、丘陵岗、平原3方面进行误差评价，结果表明：在丘陵岗地区，ANUDEM精度最高，对地形因子拟合程度最为准确；在平原地区，ANUDEM，TIN精度较高，能准确刻画水网等细节信息；总体而言，ANUDEM插值生成的DEM更能够精确地模拟南方复合地貌区的真实地形。
Abstract:
Digital elevation model (DEM) is the basic data of digital terrain analysis and plays the key role in the soil sciences, hydrology, geomorphology, environmental science, geologic hazard, agriculture and so on. DEM accuracy is closely related to the characteristics of interpolation algorithms and types of landform, therefore, research on the fitting precision with interpolation methods on different landforms is important for the improvement of the DEM interpolation accuracy. Based on six interpolation methods including ANUDEM, IDW, Kriging, Spline, NNI and TIN, we chose southern complex geomorphologic zone as study area to contrast the accuracy of the interpolation surface and reticulation water network. The results showed that DEM interpolated by ANUDEM was much more precise than the others and reflected the terrain factors correctly in the hilly areas. Both ANUDEM and TIN performed well and could extract water network information in the plains. This study contributes to the obtaining of high-accurate DEM in southern complex geomorphologic zones.

参考文献/References:

[1] 汤国安,李发源,刘学军.数字高程模型教程[M].北京:科学出版社,2010.
[2] 杨昕,汤国安,刘学军,等.数字地形分析的理论、方法与应用[J].地理学报,2009(9):1058-1070.
[3] 谭衢霖,徐潇,王浩宇,等.不同地貌类型区DEM空间内插算法精度评价[J].应用基础与工程科学学报,2014,22(1):139-149.
[4] Chaplot V, Frédéric Darboux, Hocine Bourennane, et al. Accuracy of interpolation techniques for the derivation of digital elevation models in relation to landform types and data density[J]. Geomorphology,2006,77(1/2):126-141.
[5] 张锦明.DEM插值算法适应性研究[D].郑州:中国人民解放军信息工程大学,2012.
[6] Yang Q K, McVicar T R, Niel T G V, et al. Improving a digital elevation model by reducing source data errors and optimising interpolation algorithm parameters:An example in the Loess Plateau, China[J]. International Journal of Applied Earth Observation & Geoinformation,2007,9(3):235-246.
[7] 胡海,游涟,胡鹏,等.数字高程模型内插方法的分析和选择[J].武汉大学学报:信息科学版,2011,36(1):82-85.
[8] 韩富江,刘学军,潘胜玲.DEM内插方法与可视性分析结果的相似性研究[J].地理与地理信息科学,2007,23(1):31-35.
[9] 宋向阳,吴发启.几种插值方法在微DEM构建中的应用[J].水土保持研究,2010,17(5):45-50.
[10] 曹晓敏,刘志红,张晓萍.黄土高原中游降雨量的空间插值方法研究[J].水土保持研究,2010,17(4):217-221.
[11] 包世泰,廖衍旋,胡月明,等.基于Kriging的地形高程插值[J].地理与地理信息科学,2007,23(3):28-32.
[12] 李新,程国栋,卢玲.空间内插方法比较[J].地球科学进展,2000,15(3):260-265.
[13] 杨勤科, McVicar T R, Niel T G V,等.ANUDEM和TIN两种建立DEM方法的对比研究[J].水土保持通报,2006,26(6):84-88.
[14] Hutchinson M F. A new procedure for gridding elevation and stream line data with automatic removal of spurious pits[J]. Journal of Hydrology,1989,106(3/4):211-232.
[15] 杨勤科, McVicar T R,李领涛,等.ANUDEM:专业化数字高程模型插值算法及其特点[J].干旱地区农业研究,2006,24(3):36-41.
[16] Hutchinson M F. ANUDEM version 5.3, user guide[Z]. Canberra:Fenner School of Environment and Society, Australian National University,2011.
[17] 张彩霞,杨勤科,段建军.高分辨率数字高程模型的构建方法[J].水利学报,2006,37(8):1009-1014.
[18] 杨勤科,师维娟, McVicar T R,等.水文地貌关系正确DEM的建立方法[J].中国水土保持科学,2007,5(4):1-6.
[19] 兰玉芳,徐霞,胡英敏.等高线内插DEM算法的质量评价[J].地理与地理信息科学,2012,28(4):25-28.

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备注/Memo

收稿日期:2014-11-14;改回日期:2014-11-24。
基金项目:国家科技支撑计划项目子课题“省域地理国情监测应用服务示范”（2012BAH28B04-05）
作者简介:张笑(1990-),女,江苏无锡人,硕士研究生,研究方向为数字地形分析。E-mail:zhangxiao1107@yeah.net
通讯作者:陈刚(1974-),男,甘肃庆阳人,副教授,博士,主要从事数字地形分析及应用型GIS研发研究。E-mail:chengang@nju.edu.cn

更新日期/Last Update: 1900-01-01