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Upabjojr/elevation-data-ASTER-compressed-retiled

World elevation dataset High resolution dataset containing the world elevation above the sea level in meters. See python example to get the estimated elevation from a coordinate. Info This dataset comprises global elevation data sourced from ASTER GDEM, which has been compressed and retiled for efficiency. The retiled data adheres to the common web map tile convention used by platforms such as OpenStreetMap, Google Maps, and Bing Maps, providing compatibility with… See the full description on the dataset page: https://huggingface.co/datasets/Upabjojr/elevation-data-ASTER-compressed-retiled.

sourceHugging Faceapache-2.0updated 1y agoView on Hugging Face
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World elevation dataset

High resolution dataset containing the world elevation above the sea level in meters. See python example to get the estimated elevation from a coordinate.

Info

This dataset comprises global elevation data sourced from ASTER GDEM, which has been compressed and retiled for efficiency. The retiled data adheres to the common web map tile convention used by platforms such as OpenStreetMap, Google Maps, and Bing Maps, providing compatibility with zoom level 8 tiles. More details on this tiling system can be found on the OpenStreetMap wiki.

To minimize data size, a unique compression technique was utilized, encoding the elevation data into a combination of JPG and PNG images. This innovative method reduced the dataset size significantly, from approximately 560 gigabytes to just 22 gigabytes, with minimal loss of information.

Usage

Install by cloning the project from github:

shell
git clone https://github.com/Upabjojr/peaknav-tools
cd peaknav-tools
pip install -e .

Example usage, get the estimated elevation of Mount Mitchell, North Carolina, in meters:

python
from peaknav_tools import get_elevation_from_coordinates
get_elevation_from_coordinates(35.7649563, -82.2651155)

Currently, this returns an elevation of 2024 meters for this coordinate (the actual elevation of Mount Mitchell is 2038 meters). The elevation error typically ranges between 10-20 meters.

References

This dataset has been generously donated by the PeakNav app.

Citation of the source data:

NASA/METI/AIST/Japan Spacesystems, and U.S./Japan ASTER Science Team. ASTER Global
Digital Elevation Model V003. 2018, distributed by NASA EOSDIS Land Processes DAAC,
https://doi.org/10.5067/ASTER/ASTGTM.003
Upabjojr/elevation-data-ASTER-compressed-retiled · CoolFace