Spaceborne LiDAR is a unique tool for profiling clouds and aerosols globally. Following the retirement of the Cloud–Aerosol LiDAR and Infrared Pathfinder Satellite Observations (CALIPSO) mission, DQ-1, carrying the aerosol and carbon dioxide detection LiDAR (ACDL), now fills this observational gap. However, traditional...
Lu-Hao Zuo, Fei-Yue Mao, Wei-Wei Xu et al.· IEEE Transactions on Geoscie...· 0 citations
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
Accurate, long-term, and continuous monitoring of Earth’s radiances is crucial for detecting subtle climate change signals. International expert teams are developing space-based reference systems to establish an SI-traceable radiometric benchmark in orbit. The High-Accuracy Onboard Calibrator (HAOC) is a pioneering pro...
Feng Jiang, Shun-Xia Miao, Xiu-Qing Hu et al.· IEEE Transactions on Geoscie...· 0 citations
Polar clouds play a crucial role in Arctic amplification and the surface radiation budget in a warming climate. However, accurate retrievals of cloud optical thickness (COT) and cloud effective radius (CER) over polar regions remain challenging because snow and ice surfaces have high and variable reflectance, solar-vie...
Ran-Hui Xu, Chao Liu, Di Di et al.· IEEE Journal of Selected Top...· 0 citations
Microwave scatterometers are capable of acquiring land surface backscattering coefficients day and night under all-weather conditions, offering advantages for snow cover monitoring. However, the relatively low spatial resolution of traditional scatterometer data limits their application in the fine-scale monitoring of...