用于中尺度城市建模的全球城市比例高分辨率数据集(2.0.1版)
收藏国家对地观测科学数据中心2025-07-22 更新2026-01-30 收录
下载链接:
https://noda.ac.cn/datasharing/datasetDetails/6752596c7345d6723ba645e7
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资源简介:
城市 - 大气耦合模型被广泛用于理解城市环境及其对大气过程的影响。这些模型的一个常见要求是关于 “城市比例”(不透水表面积(ISA)覆盖的模型网格比例)的信息。欧洲航天局(ESA)的 WorldCover 产品提供了 2020 年和 2021 年基准年的全球土地覆盖地图,空间分辨率为 10 米。该数据集基于哨兵 1 号和哨兵 2 号数据,总体精度在 2020 年为 74.4%,2021 年为 76.7%。在这项研究中,我们处理了 WorldCover 数据集,并提供了一个可直接用于城市建模系统的 “城市比例”。该数据集包含用于 1 度、0.5 度、0.25 度、0.009(约 1 公里)、0.0027(约 300 米)和 0.0009(约 100 米)空间分辨率的 GeoTIFF 和天气研究与预报预处理系统(WRF - WPS)格式文件。GeoTIFF 文件可以转换为其他城市中尺度建模系统。请查看 README.txt 以获取有关使用该数据集的更多信息。
注意:2.0.0 版本使用 WorldCover 2021 v200 数据集处理城市比例,而 1.0.0 版本使用 WorldCover 2020 v100 数据集。
更多信息请见此处:https://1drv.ms/w/s!Ai5IcIuv5U4DioElr0E8CEq0DE3CSw?e=Wdp9i4
Urban-atmosphere coupled models are widely used to understand urban environments and their impacts on atmospheric processes. A common requirement for these models is information regarding the "urban fraction", which refers to the proportion of model grid cells covered by impervious surface area (ISA). The WorldCover product from the European Space Agency (ESA) provides global land cover maps for the reference years 2020 and 2021, with a spatial resolution of 10 meters. This dataset is based on Sentinel-1 and Sentinel-2 data, with an overall accuracy of 74.4% in 2020 and 76.7% in 2021. In this study, we processed the WorldCover dataset and provide an "urban fraction" that can be directly used in urban modeling systems. This dataset contains GeoTIFF and Weather Research and Forecasting Preprocessing System (WRF-WPS) format files for spatial resolutions of 1°, 0.5°, 0.25°, 0.009° (approximately 1 km), 0.0027° (approximately 300 m), and 0.0009° (approximately 100 m). GeoTIFF files can be converted for use in other urban mesoscale modeling systems. Please refer to README.txt for more information on using this dataset.
Note: Version 2.0.0 processes the urban fraction using the WorldCover 2021 v200 dataset, while version 1.0.0 uses the WorldCover 2020 v100 dataset.
For more information, please visit: https://1drv.ms/w/s!Ai5IcIuv5U4DioElr0E8CEq0DE3CSw?e=Wdp9i4
创建时间:
2025-07-22



