2020年中国地级以上城市优于2米分辨率建成区产品数据集

基于优于2m分辨率的地表覆盖数据，结合道路、水系和区（县）政府所在地等专题数据，研发了一种高精度城市建成区自动化提取方法模型，并利用该方法自主生产获得中国337个地级以上城市2015年、2020年城市地区及建成区产品。

Based on land cover data with a spatial resolution superior to 2 meters, combined with thematic datasets including roads, water systems, and county/district-level government seat locations, a high-precision automated extraction method and model for urban built-up areas was developed. Utilizing this method, we independently produced urban area and built-up area products for 337 prefecture-level and higher-level cities in China for the years 2015 and 2020.