Method for vertical accuracy assessment of digital elevation models derived from remote sensing data

被引：0

作者：

Ramirez, Salomon ^{[1
]}

Espejol, Carolina ^{[1
]}

Ramirez, Mauricio ^{[1
]}

Paez, Alexander ^{[1
]}

Gomez, Dustin ^{[2
]}

机构：

[1] Inst Geog Agustin Codazzi, Ctr Invest & Desarrollo Informat Geog CIAF, Subdirecc Geog & Cartog Grupos Trabajo, Bogota, Colombia

[2] Univ Agustiniana, Fac Ciencias Econ & Adm, Programa Adm Empresas, Bogota, Colombia

来源：

REVISTA GEOGRAFICA VENEZOLANA | 2020年 / 61卷 / 01期

关键词：

vertical accuracy assessment; digital terrain model; digital elevation model;

D O I：

暂无

中图分类号：

P9 [自然地理学]; K9 [地理];

学科分类号：

0705 ; 070501 ;

摘要：

The objective of the present study was to propose a method for evaluating the vertical accuracy of digital elevation models (DEMs), which is applicable to the quality control process in the production line of the Sub-Directorate of Geography and Cartography of the Agustin Codazi Geographic Institute (Subdireccion de Geografia y Cartografia del Institute Geografico Agustin Codazzi [IGAC] which also fulfills the institutional quality objectives. The proposed method outlines the steps for the following: 1) the definition of acceptance levels based on an uncertainty analysis of the sources of error inherent to DEMs; 2) the determination of the sampling design (method and size) as a function of the terrain characteristics (slope and cover); and 3) the assessment of the vertical accuracy based on different statistical measures for quantifying the error. The effectiveness of the method was tested through its application to a DEM data set generated by the Sub- Directorate of Geography and Cartography of IGAC.

引用

页码：100 / 119

页数：20

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