顾及地貌与DEM分辨率的坡度算法适应性研究Research of algorithms for deriving slope based on different geomorphic types and DEM resolution
刘晓;赵荣;梁勇;亢晓琛;
摘要(Abstract):
针对已有坡度相关研究多选取黄土高原等特殊地貌,且基于单一分辨率,缺乏普遍适用性。该文以德宏州地区的大起伏山地、平原的多分辨率DEM为数据源,采用排序分析、单因素方差分析、回归分析、LSD、对比分析等6种坡度算法提取样区坡度,以比较不同地貌类型在不同分辨率下的坡度平均值、中误差等指标。实验结果表明,地貌类型及分辨率均应作为坡度算法选择的重要依据,这为地理国情监测中地形地貌研究提供了重要参考价值。
关键词(KeyWords): 坡度算法;多分辨率;地貌类型
基金项目(Foundation): 测绘地理信息公益性行业科研专项经费项目(201512033);; 国家高新技术研究发展专项经费项目(2012AA12A309);; 国家质量监督检验检疫总局公益性行业科研专项(201410308);; 测绘地理信息公益性行业科研专项经费项目(201512027)
作者(Authors): 刘晓;赵荣;梁勇;亢晓琛;
DOI: 10.16251/j.cnki.1009-2307.2017.03.006
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