Chinese Academy of Sciences
The world's first 5-meter-resolution Broadband Multi-spectral Satellite Dataset (JLS-5M) was officially open to global users for sharing during the 6th Asia-Oceania Group on Earth Observations (AOGEO) Workshop held in the University of Macau from May 29 to 31, 2023. The data is available through the National Earth Observation Data Center.
The dataset, developed by the Aerospace Information Research Institute (AIR) of the Chinese Academy of Sciences (CAS) and its collaborators, contains 20 spectral bands, among which the spatial resolution of the images of the main terrestrial feature spectral bands reaches five meters.
The dataset uses the L1 data collected by China's commercial multispectral satellite series Jilin-1 GP01&GP02, covering 65 countries along the Belt and Road during the period of 2020-2022.
In order to support quantitative applications, the production of the dataset adopts atmospheric correction algorithm excluding adjacent pixel effect, on-orbit absolute radiometric calibration techniques such as site calibration and cross calibration, and index product verification. Finally, the total volume of the dataset reaches 80TB.
The JLS-5M dataset has the outstanding features of having medium-high spatial resolution and multiple spectral channels at the same time, and it will help to improve the precision of land use, resource management, and environmental monitoring, among other fields.
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