Vertical accuracy evaluation of SRTM-GL1, GDEM-V2, AW3D30 and CartoDEM-V3.1 of 30-m resolution with dual frequency GNSS for lower Tapi Basin India
Abstract
Shuttle Radar Topography Mission (SRTM-GL1), Advanced Space Borne Thermal Emission and Reflection Radiometer- Global DEM (GDEM-V2), recently released Advanced Land Observing Satellite (‘DAICHI’) DEM (AW3D30) and Indian National Cartosat-1 DEM v3 (CartoDEM-V3.1) provide free topographic data at a 30-m resolution for Indian peninsula. In this research study, the vertical accuracy of DEM is evaluated for above data-sets and compared with high accuracy dual frequency GNSS of a millimetre accuracy. The extensive field investigation is carried out using a stratified random fast static DGPS survey for collecting 117 high accuracy ground control points in a predominantly agriculture catchment. Further, the effect of land cover, slope and low-lying coastal zone on DEM vertical accuracy was also analysed and presented in this study.
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Validation of surface height from shuttle radar topography mission using shuttle laser altimeter
Sun, G., Ranson, K. J., Kharuk, V. I., & Kovacs, K. (2003) · Remote Sensing of Environment · doi:10.1016/j.rse.2003.09.001 · Cited by 233 · see citing works
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Yap, L., Kandé, L. H., Nouayou, R., Kamguia, J., Ngouh, N. A., & Makuate, M. B. (2019) · International Journal of Digital Earth · doi:10.1080/17538947.2018.1458163 · Cited by 70 · see citing works
- Authors
- Jain, A. O., Thaker, T., Chaurasia, A., Patel, P., & Singh, A. K.
- Affiliations
- Pandit Deendayal Energy University (IN)
- Department of Civil Engineering, School of Technology, Pandit Deendayal Petroleum University, Gandhinagar, India
- JK Lakshmipat University (IN)
- Corresponding author
- Jain, Akshay O.
- Venue
- Geocarto International
- Publisher
- Informa UK Limited
- Published
- 2017-06-30
- Volume
- 33
- Issue
- 11
- Pages
- 1237-1256
- ISSN
- 1010-6049 (ISSN-L)
- 1752-0762
- OpenAlex
- W2645102727
- Cited by
- 67
- References
- 1
- Citations by year
- 2026: 2 · 2025: 6 · 2024: 8 · 2023: 8 · 2022: 14 · 2021: 9 · 2020: 9 · 2019: 8 · 2018: 3
- FWCI
- 4.61
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Geocarto International (publishedVersion)
- Funders
- Office of Research and Development (ORSP/R&D/SRP/2015/PPAJ)
- Topics
- Physical Sciences › Engineering › Ocean Engineering › Satellite Image Processing and Photogrammetry
- Physical Sciences › Engineering › Aerospace Engineering › GNSS positioning and interference
- Physical Sciences › Engineering › Civil and Structural Engineering › Geodetic Measurements and Engineering Structures
- Keywords
- digital elevation model, vertical accuracy, AW3D30, GNSS ground control points, land cover effects, slope effects, coastal areas, agricultural catchments
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