China Releases Second Phase of JLS-5M Satellite Data for Global Scientific Community

On January 2，2023，the National Earth Observation Data Center affiliated with the Aerospace Information Research Institute (AIR) under the Chinese Academy of Sciences (CAS), unveiled the second phase of the global 5-meter resolution wide-band multispectral satellite dataset, known as JLS-5M.

Jan 19, 2024

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Fusion Method Enhances All-Weather Total Precipitable Water Monitoring

In a big stride towards advancing our understanding of the water cycle and climate change, researchers have unveiled a novel fusion method capable of providing high-resolution Total Precipitable Water (TPW) information even in challenging all-weather conditions. The method, detailed in a recent paper published in the Remote Sensing of Environment addresses the limitations faced by current satellite sensors in obtaining high-resolution TPW and introduces a fusion algorithm leveraging multiple water vapor-related variables from both microwave and near-infrared (NIR) remote sensing.

Jan 12, 2024

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Novel Spectrometer Enhances Imaging Precision in Nano- and Bio-Systems

In a study published in the Light: Science & Applications on Jan.8，2024, scientists from the Aerospace Information Research Institute (AIR) under the Chinese Academy of Sciences (CAS) developed spectrometer and monochromator with an unprecedented throughput efficiency exceeding 60%. This innovative design, achieved without the use of variable line spacing gratings, also boasts superb spectral resolution with λ/Δλ> 200.

Jan 11, 2024

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Satellite Technology Sheds Light on Urban Nightscapes: SDGSAT-1's Role in Tackling LED Light Pollution

In response to the growing imperative for decarbonization, the widespread transition from artificial light at night (ALAN) to light-emitting diodes (LEDs) has inadvertently given rise to a new challenge – blue light pollution and its associated adverse effects. Recognizing the urgency of this issue, scientists from the Aerospace Information Research Institute (AIR) under the Chinese Academy of Sciences (CAS) have turned to the Sustainable Development Science Satellite-1 (SDGSAT-1) as a pioneering tool to address and manage the impact of modern illumination sources on the urban environment.

Jan 08, 2024

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Satellite Altimetry Reveals Significant Changes in Water Levels of Chinese Lakes Over Two Decades

In a recent study published in the Big Earth Data on Jan.3, scientists from the Aerospace Information Research Institute (AIR) under the Chinese Academy of Sciences (CAS) harnessed satellite altimetry to monitor water level changes in 988 lakes, each exceeding 10 square kilometers, across China. The research, spanning from 2002 to 2023, utilized data from ICESat/-2, Cryosat-2, Jason-1/2/3, and Sentinel-3A/3B altimeters, employing techniques such as waveform retracking, lake level extraction, time series construction, multi-altimeter data fusion, and outlier removal.

Jan 08, 2024

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