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Scientists Develop Novel Method to Detect Polluted Water in Rural Areas, Tackling Algal Blooms
Chinese scientists have developed a novel method to detect and monitor polluted water in rural areas—a critical step toward tackling harmful algal blooms and contaminated ponds. By combining high-resolution satellite imagery with deep learning methods, researchers from the Aerospace Information Research Institute (AIR) under the Chinese Academy of Sciences (CAS) can now pinpoint ponds overrun by duckweed or algae with remarkable accuracy.
Feb 28, 2025
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Research Identifies Limitations of SIF Algorithms in Monitoring Photosynthetic Dynamics
A study published in the Journal of Remote Sensing by a research team from the Aerospace Information Research Institute (AIR) of the Chinese Academy of Sciences (CAS) evaluates three algorithms—Band Shape Fitting (BSF), Three-band Fraunhofer Line Discrimination (3FLD), and Singular Vector Decomposition (SVD)—designed to measure solar-induced chlorophyll fluorescence (SIF) in plants. These algorithms aim to improve the accuracy of SIF data, which is essential for monitoring photosynthesis in both ecological and agricultural research.
Feb 28, 2025
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Study Reveals Spatial Representativeness of Global Soil Moisture Stations and Its Influencing Factors
A team of researchers from the Aerospace Information Research Institute (AIR), Chinese Academy of Sciences, has developed a new framework to evaluate the spatial representativeness of soil moisture stations and its influencing factors globally. By revealing that around 63% of current soil moisture observation stations reliably reflect soil moisture conditions at the satellite pixel scale, this study addresses key challenges in validating satellite-based soil moisture products. Published in IEEE Transactions on Geoscience and Remote Sensing, the research provides valuable references for the rational deployment of soil moisture sites and the robust validation of satellite products.
Feb 08, 2025
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Terahertz Polarization Control Unlocks New Frontiers in Technology Applications
Researchers from the Aerospace Information Research Institute (AIR) of the Chinese Academy of Sciences, in collaboration with Nanjing University, have achieved a groundbreaking milestone in this field. Their innovative method, published in Optica on January 18, introduces unprecedented control over the polarization of THz waves, marking a transformative breakthrough in optics and photonics.
Jan 22, 2025
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Study Reveals Uniqueness of SDGSAT-1 in Detecting Offshore Oil and Gas Flaring
A study published in the International Journal of Digital Earth on December 25 introduces a pioneering application of the Sustainable Development Science Satellite-1 (SDGSAT-1) in observing offshore oil and gas platforms. Researchers from the Aerospace Information Research Institute (AIR) of the Chinese Academy of Sciences leveraged the advanced capabilities of SDGSAT-1's Glimmer Imager (GLI) and Thermal Infrared Spectrometer (TIS) to probe the gas flaring activities in the South China Sea.
Jan 16, 2025
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