Author

Peng Zhang

3 papers indexed here

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Open access Sep 2026

Estimating Ground-Level PM2.5 over Beijing–Tianjin–Hebei from DQ-1 Wide-Swath Imager Signals and ERA5 Meteorology Using Physics-Guided Feature Engineering

The DaQi-1 (DQ-1) Wide-Swath Imager (WSI) combines an approximately 2300 km swath with 15 visible-to-shortwave-infrared channels at 75–600 m resolution, providing broad regional coverage and flexible spectral support. We developed an ExtraTrees estimator from WSI signals and ERA5 planetary boundary-layer height, winds,...

Rui-Jie Zhang, Hui Chen, Chun-Yan Zhou et al. · Remote Sensing · 0 citations

Aug 2026

Fast All‐Sky Hyperspectral Infrared Radiative Transfer With Physically Recursive Cloud Treatment

Clouds strongly modify thermal infrared radiances through absorption, emission, and multiple scattering, yet rigorous line‐by‐line (LBL) gas absorption coupled with multi‐stream scattering remains too expensive for large ensembles of all‐sky hyperspectral simulations. We present a fast monochromatic radiative transfer...

Yu-Xiang Ling, Chao Liu, Jun-Yu Yan et al. · Journal of Geophysical Resea... · 0 citations

Open access Sep 2026

Resolving the Physical Ambiguity of Passive Infrared Cloud Optical Thickness Retrievals With Microwave Observations

Satellite thermal infrared (TIR) observations, combined with machine‐learning methods, enable nighttime retrievals of cloud optical thickness (COT), but their cloud‐top‐dominated radiances provide ambiguous information for optically thick clouds. Passive microwave (MW) observations provide complementary sensitivity to...

Chao Liu, Xia-Oou Sun, Yi-Kun Yang et al. · Geophysical Research Letters · 0 citations