Zheng et al. (2025) Quantitative assessment of building losses in China’s coastal regions due to sea-level rise under extreme climate conditions

⚠️ Warning: This summary was generated from the abstract only, as the full text was not available.

Identification

• Journal: Environmental Research Letters
• Year: 2025
• Date: 2025-12-01
• Authors: Haolei Zheng, Yang Wang, Yuyao Ye, Yingmei Wu, Zhang Chao
• DOI: 10.1088/1748-9326/ae21f8

Research Groups

Not specified in the abstract.

Short Summary

This study quantitatively assessed land inundation and building loss across 14 coastal provinces of China under extreme sea level events and sea-level rise, revealing a total potentially inundated area of 49 366.22 km² and significant building losses concentrated in economically developed regions under a 100-year return period extreme climate scenario.

Objective

• To quantitatively assess the spatial distribution characteristics of land inundation and building loss in China's coastal provinces under the combined effects of storm surges and tides, thereby advancing the quantitative study of building inundation exposure in coastal areas.

Study Configuration

• Spatial Scale: 14 coastal provinces (autonomous regions, municipalities, and special administrative regions) in China.
• Temporal Scale: Assessment based on a 100-year return period extreme climate scenario.

Methodology and Data

• Models used: Python scripts and ArcGIS Pro software for spatial analysis.
• Data sources: Extreme sea level data, a digital elevation model, and building data.

Main Results

• Under sea-level rise resulting from a 100-year return period of extreme climate, the total potentially inundated area in China’s coastal provinces reaches 49 366.22 km².
• Buildings in 93 cities across these provinces face varying degrees of inundation exposure.
• Building losses are primarily concentrated in economically developed regions such as Jiangsu and Guangdong.
• In some areas, the potential density of inundated buildings exceeds 200 buildings/km², leading to extremely severe economic losses due to high housing prices and dense construction.

Contributions

• Provides a large-scale and detailed quantitative assessment of building losses caused by sea-level rise in China's coastal regions, addressing a current lack in existing literature.
• Advances the quantitative study of building inundation exposure in coastal areas by integrating diverse datasets and computational tools.

Funding

Not specified in the abstract.

Citation

@article{Zheng2025Quantitative,
  author = {Zheng, Haolei and Wang, Yang and Ye, Yuyao and Wu, Yingmei and Chao, Zhang},
  title = {Quantitative assessment of building losses in China’s coastal regions due to sea-level rise under extreme climate conditions},
  journal = {Environmental Research Letters},
  year = {2025},
  doi = {10.1088/1748-9326/ae21f8},
  url = {https://doi.org/10.1088/1748-9326/ae21f8}
}