High-resolution satellite remote sensing has become an indispensable foundation for modern urban governance. The GF7 satellite carries an advanced push-broom imaging sensor delivering 0.7 m sub-meter imagery, excelling in feature interpretation, building outline extraction and road network identification. Through multi-temporal comparison of high-resolution imagery, planning authorities can accurately detect illegal construction, track old-town renovation progress and evaluate infrastructure renewal — shifting from experience-driven to data-driven refined urban management. With wide coverage, short revisit cycles and traceable archives, satellite imagery is becoming a core data source for digital-twin city development.
Haiyang City lies on the southeastern Shandong Peninsula along the Yellow Sea. It is a county-level city under Yantai, covering about 1,886 km² with a 230 km coastline. Blessed with a mild climate, four distinct seasons, rich marine resources and a deep historical heritage, Haiyang has seized the Jiaodong Economic Circle integration opportunity to advance urban renewal — with fast-changing key zones such as the 10-km Golden Beach, Lianli Island and the nuclear-power equipment manufacturing park. High-resolution satellite imagery provides timely, objective and visual first-hand data for Haiyang’s urban planning, ecological protection and coastline monitoring.
The images below are 2026 0.7 m resolution satellite imagery of Haiyang City, Yantai, Shandong Province captured by the GF7 satellite.
GF7 is a sub-meter optical remote sensing satellite under China’s High-Resolution Earth Observation major program, successfully launched on November 3, 2019 from the Taiyuan Satellite Launch Center. Operating in a sun-synchronous orbit at about 506 km, it carries a dual-line-array stereo mapping camera and a laser altimeter, combining stereo mapping with high-resolution push-broom imaging. Its 0.7 m panchromatic and 2.8 m multispectral imagery serve basic surveying and mapping, urban planning, land & resources surveys, smart-city development and ecological monitoring — among the highest-resolution civilian Earth observation satellites of China. Its stereo capability generates high-precision digital surface models (DSM) for urban 3D modeling and terrain analysis.
∗ Image sharpness is affected by weather, season, sun elevation, off-nadir angle and target scale; visual differences between dates are normal — please refer to the actual data.