Vertical accuracy assessment of freely available digital elevation models : implications for low-relief landscapes

Hector del Valle; Fernando Tentor; Walter Sione; Pamela Zamboni; Pablo Acenolaza; Graciela Metternicht

doi:10.1109/IGARSS46834.2022.9884896

Vertical accuracy assessment of freely available digital elevation models : implications for low-relief landscapes

Hector del Valle, Fernando Tentor, Walter Sione, Pamela Zamboni, Pablo Acenolaza, Graciela Metternicht

Western Sydney University

Research output: Chapter in Book / Conference Paper › Conference Paper › peer-review

3 Citations (Scopus)

Abstract

Global Digital Elevation Models (DEMs) are widely used in many developing countries to help mapping soil-scapes, and users rely on metadata on vertical accuracy (VA) given by product developers. VA is important in modelling topographic attributes useful for mapping and predicting soil-scapes. This paper summarizes a comparative analysis of vertical accuracy of eight freely available DEMs derived from EO datasets in a low-relief landscape of Argentina (Entre Rios province), where the main objective is to map complex soil cover patterns. These are: MERIT-DEM; SRTMGL1 v3; ASTGTM v3; AW3D30 v3.1; Copernicus GLO-30; NASA DEM HGT v1; SRTMGL1up-sampling; Argentina's MDE-Ar v2. Results show the Copernicus GLO-30 dataset was consistent with its nominal quality specifications, whereas the ASTGTM v3 from NASA/Jaxa ranked last. While these results are restricted to the geography of this study area, they reaffirm the need to assess DEM's quality independently of that provided by the product developers.

Original language	English
Title of host publication	Proceedings of 2022 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2022), 17-22 July 2022, Kuala Lumpur, Malaysia
Publisher	IEEE
Pages	6414-6417
Number of pages	4
ISBN (Print)	9781665427920
DOIs	https://doi.org/10.1109/IGARSS46834.2022.9884896
Publication status	Published - 2022
Event	International Geoscience and Remote Sensing Symposium - Duration: 17 Jul 2022 → …

Conference

Conference	International Geoscience and Remote Sensing Symposium
Period	17/07/22 → …

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10.1109/IGARSS46834.2022.9884896

Cite this

del Valle, H., Tentor, F., Sione, W., Zamboni, P., Acenolaza, P., & Metternicht, G. (2022). Vertical accuracy assessment of freely available digital elevation models : implications for low-relief landscapes. In Proceedings of 2022 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2022), 17-22 July 2022, Kuala Lumpur, Malaysia (pp. 6414-6417). IEEE. https://doi.org/10.1109/IGARSS46834.2022.9884896

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title = "Vertical accuracy assessment of freely available digital elevation models : implications for low-relief landscapes",

abstract = "Global Digital Elevation Models (DEMs) are widely used in many developing countries to help mapping soil-scapes, and users rely on metadata on vertical accuracy (VA) given by product developers. VA is important in modelling topographic attributes useful for mapping and predicting soil-scapes. This paper summarizes a comparative analysis of vertical accuracy of eight freely available DEMs derived from EO datasets in a low-relief landscape of Argentina (Entre Rios province), where the main objective is to map complex soil cover patterns. These are: MERIT-DEM; SRTMGL1 v3; ASTGTM v3; AW3D30 v3.1; Copernicus GLO-30; NASA DEM HGT v1; SRTMGL1up-sampling; Argentina's MDE-Ar v2. Results show the Copernicus GLO-30 dataset was consistent with its nominal quality specifications, whereas the ASTGTM v3 from NASA/Jaxa ranked last. While these results are restricted to the geography of this study area, they reaffirm the need to assess DEM's quality independently of that provided by the product developers.",

author = "{del Valle}, Hector and Fernando Tentor and Walter Sione and Pamela Zamboni and Pablo Acenolaza and Graciela Metternicht",

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del Valle, H, Tentor, F, Sione, W, Zamboni, P, Acenolaza, P & Metternicht, G 2022, Vertical accuracy assessment of freely available digital elevation models : implications for low-relief landscapes. in Proceedings of 2022 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2022), 17-22 July 2022, Kuala Lumpur, Malaysia. IEEE, pp. 6414-6417, International Geoscience and Remote Sensing Symposium, 17/07/22. https://doi.org/10.1109/IGARSS46834.2022.9884896

Vertical accuracy assessment of freely available digital elevation models : implications for low-relief landscapes. / del Valle, Hector; Tentor, Fernando; Sione, Walter et al.
Proceedings of 2022 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2022), 17-22 July 2022, Kuala Lumpur, Malaysia. IEEE, 2022. p. 6414-6417.

Research output: Chapter in Book / Conference Paper › Conference Paper › peer-review

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T1 - Vertical accuracy assessment of freely available digital elevation models : implications for low-relief landscapes

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AU - Tentor, Fernando

AU - Sione, Walter

AU - Zamboni, Pamela

AU - Acenolaza, Pablo

AU - Metternicht, Graciela

PY - 2022

Y1 - 2022

N2 - Global Digital Elevation Models (DEMs) are widely used in many developing countries to help mapping soil-scapes, and users rely on metadata on vertical accuracy (VA) given by product developers. VA is important in modelling topographic attributes useful for mapping and predicting soil-scapes. This paper summarizes a comparative analysis of vertical accuracy of eight freely available DEMs derived from EO datasets in a low-relief landscape of Argentina (Entre Rios province), where the main objective is to map complex soil cover patterns. These are: MERIT-DEM; SRTMGL1 v3; ASTGTM v3; AW3D30 v3.1; Copernicus GLO-30; NASA DEM HGT v1; SRTMGL1up-sampling; Argentina's MDE-Ar v2. Results show the Copernicus GLO-30 dataset was consistent with its nominal quality specifications, whereas the ASTGTM v3 from NASA/Jaxa ranked last. While these results are restricted to the geography of this study area, they reaffirm the need to assess DEM's quality independently of that provided by the product developers.

AB - Global Digital Elevation Models (DEMs) are widely used in many developing countries to help mapping soil-scapes, and users rely on metadata on vertical accuracy (VA) given by product developers. VA is important in modelling topographic attributes useful for mapping and predicting soil-scapes. This paper summarizes a comparative analysis of vertical accuracy of eight freely available DEMs derived from EO datasets in a low-relief landscape of Argentina (Entre Rios province), where the main objective is to map complex soil cover patterns. These are: MERIT-DEM; SRTMGL1 v3; ASTGTM v3; AW3D30 v3.1; Copernicus GLO-30; NASA DEM HGT v1; SRTMGL1up-sampling; Argentina's MDE-Ar v2. Results show the Copernicus GLO-30 dataset was consistent with its nominal quality specifications, whereas the ASTGTM v3 from NASA/Jaxa ranked last. While these results are restricted to the geography of this study area, they reaffirm the need to assess DEM's quality independently of that provided by the product developers.

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ER -

del Valle H, Tentor F, Sione W, Zamboni P, Acenolaza P, Metternicht G. Vertical accuracy assessment of freely available digital elevation models : implications for low-relief landscapes. In Proceedings of 2022 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2022), 17-22 July 2022, Kuala Lumpur, Malaysia. IEEE. 2022. p. 6414-6417 doi: 10.1109/IGARSS46834.2022.9884896

Vertical accuracy assessment of freely available digital elevation models : implications for low-relief landscapes

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