Global Human Built-up And Settlement Extent (HBASE) Dataset From Landsat
Description
Purpose
To provide high spatial resolution estimates of global urban extent derived from global 30m Landsat satellite data for the target year 2010 and a companion dataset to the Global Man-made Impervious Surface (GMIS) dataset.
Abstract
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.
Documentation
To access the publication associated with this resource, you can use the following link: https://doi.org/10.5194/essd-12-1625-2020
Download
To download these datasets, you can use the following link: https://sedac.ciesin.columbia.edu/data/set/ulandsat-hbase-v1/data-download
Related materials
This resource is associated with the Earth Observations Toolkit for Sustainable Cities and Human Settlements. If you want to learn more about it, please, check the EO Toolkit portal (https://eotoolkit.unhabitat.org/), a place where you will find use cases, learning material, and many other tools and resources related to the Sustainable Development Goal 11 and New Urban Agenda.