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Description

The Terra Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Digital Elevation Model (AST14DEM) product is generated using bands 3N (nadir-viewing) and 3B (backward-viewing) of an ASTER Level 1A image acquired by the Visible and Near Infrared (VNIR) sensor. The VNIR subsystem includes two independent telescope assemblies that facilitate the generation of stereoscopic data. The band 3 stereo pair is acquired in the spectral range of 0.78 and 0.86 microns with a base-to-height ratio of 0.6 and an intersection angle of 27.7 degrees. There is a time lag of approximately one minute between the acquisition of the nadir and backward images. For a better understanding, refer to the diagram depicting the along-track imaging geometry diagram of the ASTER VNIR nadir and backward-viewing sensors.

Known Issues

  • Data acquisition gap: On November 28, 2024, one of Terra's power-transmitting shunt units failed. As a result, there was insufficient power to maintain functionality of the ASTER instrument. ASTER resumed acquisitions for the VNIR bands on January 18, 2025. Users should note the data gap in ASTER acquisitions from November 28, 2024, through January 16, 2025, for VNIR observations.

Version Description

The following improvement was implemented for the AST14DEM Version 4 data product: Data format has transitioned from legacy HDF-EOS2 to Cloud Optimized GeoTIFF (COG).

Product Summary

Platforms
Terra
Instruments
ASTER
Projects
TERRA
Spatial Extent

N: 83 S: -83 E: 180 W: -180

Spatial Resolution
30 Meters x 30 Meters
Location
GLOBAL LAND
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2000-03-06 to Present
Data Partner
Land Processes Distributed Active Archive Center (LP DAAC) ,
Ground Data System, Japan Space Systems, National Institute of Advanced Industrial Science and Technology, Ministry of Economy, Trade, and Industry, Japan (JP/METI/AIST/JSS/GDS)
Concept ID
C3306855744-LPCLOUD
Data State
ACTIVE
Number of Files/Granules
3549279
Processing Level
3
Published
Updated
Science Keywords
Topographical Relief Maps ,
Terrain Elevation ,
Digital Elevation/Terrain Model (DEM)

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

NASA/METI/AIST/Japan Spacesystems and U.S./Japan ASTER Science Team. (2025). ASTER Digital Elevation Model V004 [Data set]. NASA Land Processes Distributed Active Archive Center. https://doi.org/10.5067/ASTER/AST14DEM.004 Date Accessed: 2026-06-20

File Naming Convention

AST14DEM_00412112020183922_20250912144703.tif

The file name begins with the Product Short Name (AST14DEM), followed by the 3-digit Version Number plus the Date and Time of Acquisition designated as MMDDYYYYHHMMSS (00412112020183922), Date and Time of Processing designated as YYYYMMDDHHMMSS (20250912144703), and the Data Format (tif). 

Documents

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Publications Citing This Dataset

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Title Year Author Topic
Tippers at island geomagnetic observatories constrain electrical conductivity of oceanic lithosphere and upper mantle Morschhauser, Achim, Grayver, Alexander, Kuvshinov, Alexey, Samrock, Friedemann, Matzka, Jurgen Topographical Relief Maps, Terrain Elevation, Digital Elevation/Terrain Model (DEM)
Failure criteria for porous dome rocks and lavas: a study of Mt. Unzen, Japan Coats, Rebecca, Kendrick, Jackie E., Wallace, Paul A., Miwa, Takahiro, Hornby, Adrian J., Ashworth, James D., Matsushima, Takeshi, Lavallee, Yan Topographical Relief Maps, Terrain Elevation, Digital Elevation/Terrain Model (DEM)
Time series land cover mapping and change detection analysis using geographic information system and remote sensing, Northern Ethiopia Ayele, Gebiaw T, Tebeje, Aschalew K, Demissie, Solomon S, Belete, Mulugeta A, Jemberrie, Mengistu A, Teshome, Wondie M, Mengistu, Dereje T, Teshale, Engidasew Z Topographical Relief Maps, Terrain Elevation, Digital Elevation/Terrain Model (DEM)
Unmanned aerial vehicle (UAV) survey with commercial-grade instruments: A case study from the Eastern Habur Archaeological Survey, Iraq Herrmann, Jason T., Glissmann, Benjamin, Sconzo, Paola, Pfalzner, Peter Topographical Relief Maps, Terrain Elevation, Digital Elevation/Terrain Model (DEM)
Opportunities for biodiversity gains under the world's largest reforestation programme Hua, Fangyuan, Wang, Xiaoyang, Zheng, Xinlei, Fisher, Brendan, Wang, Lin, Zhu, Jianguo, Tang, Ya, Yu, Douglas W., Wilcove, David S. Topographical Relief Maps, Terrain Elevation, Digital Elevation/Terrain Model (DEM)
Subalpine and alpine grassland communities in the northeastern Greater Caucasus of Azerbaijan Etzold, Jonathan, Munzner, Franziska, Manthey, Michael Topographical Relief Maps, Terrain Elevation, Digital Elevation/Terrain Model (DEM)
Modeling glacier elevation change from DEM time series Wang, Di, Kaab, Andreas Topographical Relief Maps, Terrain Elevation, Digital Elevation/Terrain Model (DEM)
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