arcPycor:an open-source automated GIS tool to co-register elevation datasets

作     者：WANG Yu-zhe YE Qing-hua WANG Yu-zhe;YE Qing-hua

作者机构：College of Resources and EnvironmentUniversity of Chinese Academy of SciencesBeijing 100049China College of Geography and EnvironmentShandong Normal UniversityJinan 250358China Key Laboratory of Tibetan Environment Changes and Land Surface ProcessesInstitute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China 

出 版 物：《Journal of Mountain Science》 (山地科学学报（英文）)

年 卷 期：2021年第18卷第4期

页      面：923-931页

核心收录：

学科分类：081603[工学-地图制图学与地理信息工程] 081802[工学-地球探测与信息技术] 07[理学] 08[工学] 070503[理学-地图学与地理信息系统] 0818[工学-地质资源与地质工程] 0705[理学-地理学] 0816[工学-测绘科学与技术] 

基　　金：supported by the National Natural Science Foundation of China(grant 41901088) the China Postdoctoral Science Foundation(grant 2020M670423) supported by the National Natural Science Foundation of China(grant 41530748) the second Tibetan Plateau Scientific Expedition and Research Program(grant 2019QZKK0202) the 13th Five-year Informatization Plan of Chinese Academy of Sciences(grant XXH13505-06) 

主　　题：Digital elevation models DEM coregistration ArcGIS Elevation change Terrain analysis 

摘      要：Subtraction of elevation datasets(*** elevation models(DEMs)and non-continuous elevation points)acquired at different times is a useful method to monitor landform surface *** to heavy post-processing of these elevation datasets,multi-source errors are introduced into the resulting elevation data *** improve the estimation of elevation change,co-registration of elevation datasets is a *** paper presents an open-source automated GIS tool(arc Pycor)for co-registering elevation *** Pycor is coded in Python 2.7 and is run via Arc GIS for *** performances of arc Pycor have been evaluated using a series of *** benchmark tests,the resolved co-registration vectors of arc Pycor are compared to the predefined shift vectors obtained by artificially misaligning the slave DEMs from the master elevation *** show that arc Pycor is able to co-register DEMs with relative high accuracy and can well align slave DEMs to non-continuous elevation points,which indicates its robustness in co-registering of elevation *** Pycor is also able to co-register multi-sourced DEMs of different resolutions in mountain areas.