Global Human Built-up And Settlement Extent (HBASE) Dataset From Landsat

The Global Human Built-up And Settlement Extent (HBASE) Dataset from Landsat is a global map of HBASE derived from the Global Land Survey (GLS) Landsat dataset for the target year 2010. The HBASE dataset consists of two layers: 1) the HBASE mask; and 2) the pixel-wise probability of HBASE. These layers are co-registered to the same spatial extent at a common 30m spatial resolution. The spatial extent covers the entire globe except Antarctica and some small islands. This dataset is one of the first global, 30m datasets of urban extent to be derived from the GLS data for 2010 and is a companion dataset to the Global Man-made Impervious Surface (GMIS) dataset. The HBASE mask was created for post-processing of the GMIS dataset, but can also be utilized by users needing a binary map. The dataset is expected to have a rather broad spectrum of users, from those wishing to examine/study the fine details of urban land cover over the globe at full 30m resolution to global modelers trying to understand the climate/environmental impacts of man-made surfaces at continental to global scales. For example, the data are applicable to local modeling studies of urban impacts on the energy, water, and carbon cycles, as well as analyses at the individual country level.

全球人造地表与建设区范围（HBASE）数据集，源自Landsat的全球土地调查（GLS）Landsat数据集，并针对2010年目标年份进行构建，是一幅全球范围的HBASE地图。该数据集包含两层：1）HBASE掩膜；2）HBASE的像素级概率。这两层数据均以30米的空间分辨率与同一空间范围对齐。其空间范围覆盖全球，除南极洲及少数小岛外。此数据集是全球首个基于2010年GLS数据的30米分辨率全球城市范围数据集，同时也是全球人造不透水表面（GMIS）数据集的配套数据集。HBASE掩膜是为了GMIS数据集的后处理而创建，但亦可供需要二值地图的用户使用。该数据集预计将拥有广泛的用户群体，从希望在全球范围内以30米全分辨率详细研究城市土地利用的细节，到试图理解人造地表在大陆至全球尺度上对气候和环境影响的全球模型师。例如，这些数据适用于研究城市对能源、水循环和碳循环的影响的本地建模研究，以及在国家层面的分析。