Mapping global onshore wind turbines using multi-source remote sensing images and hybrid learning approaches
Abstract. Wind power serves as a vital zero-carbon alternative to fossil fuels for climate change mitigation. Nevertheless, the vast expansion of wind turbine installation requires extensive terrestrial resources, raising wide concerns regarding land use competition and ecological impacts. Quantifying these effects necessitates near real-time geospatial data on wind turbine placement and density. However, current methods remain inadequate monitoring for the fast-growing wind turbine deployment. Here, we developed an integrated framework that combines OpenStreetMap (OSM) data with multi-source remote sensing images (Google Earth and Sentinel-1/2) and deep learning and traditional machine learning models (ResNet-18 and Random Forest) to map global onshore wind turbines. Our models achieve validation accuracy >97 % while enabling cost-effective, timely updates of global onshore wind turbines. Eventually, we established a geographical dataset covering a total of 379,595 wind turbines globally by 2024. This dataset represents a tenfold expansion over currently available global wind turbine inventories as of 2020. In addition, we found that 80% wind turbines are situated on cropland and grassland, followed by forest and bare ground. This dataset facilitates essential studies on renewable energy land management, ecological impact analysis, and data-driven energy transition policies. The codes and dataset of the global onshore wind turbines is available at Zenodo link: https://doi.org/10.5281/zenodo.16759861 (Shujun et al., 2025).
Spelling and Grammar Issues
ZZ 45–46
Original: “The codes and dataset … is available.”
Correct: “The code and dataset … are available.”
ZZ 83
Original: “there is a geospatial wind turbine dataset for 2020 is introduced.”
Correct: “A geospatial wind turbine dataset for 2020 was introduced.”
Unclear Description: OSM Query
The query string in line 129 (["generator: source"="wind"]) appears syntactically incorrect.
OpenStreetMap commonly uses:
The manuscript should clearly state the exact Overpass query used.
Major Comment: Missing Methodological Detail on OSM Extraction
Major Comment: Unexplained OSM Error Rate
The manuscript states a “10% error rate in OSM’s global wind turbine dataset” but provides no methodological explanation.
Missing information:
Major Comment: Insufficient Documentation of Random Forest Sampling
Missing details include:
The Random Forest sampling workflow requires a clear methodological description.
Minor Comment: Sentinel-1/2 Features and Missing GEE Scripts
The manuscript lists processing steps, but details are missing, included:
Referencing Zenodo alone is insufficient; the core processing steps must appear in the manuscript.