Results 21 to 30 of about 10,855 (288)

Cloud-Assisted Private Set Intersection via Multi-Key Fully Homomorphic Encryption

Mathematics, 2023
With the development of cloud computing and big data, secure multi-party computation, which can collaborate with multiple parties to deal with a large number of transactions, plays an important role in protecting privacy.
Cunqun Fan, Peiheng Jia, Manyun Lin, Lan Wei, Peng Guo, Xiangang Zhao, Ximeng Liu   +6 more
doaj   +1 more source

Diurnal carbon monoxide observed from a geostationary infrared hyperspectral sounder: first result from GIIRS on board FengYun-4B [PDF]

Atmospheric Measurement Techniques, 2023
The Geostationary Interferometric Infrared Sounder (GIIRS) on board FengYun-4 series satellites is the world's first geostationary hyperspectral infrared sounder.
Z.-C. Zeng, L. Lee, C. Qi
doaj   +1 more source

Lightning Activity Observed by the FengYun-4A Lightning Mapping Imager

Remote Sensing, 2021
The Lightning Mapping Imager (LMI) onboard the geostationary meteorological satelliteFengYun-4A (FY-4A) detects both intra-cloud (IC) and cloud-to-ground (CG) lightning continuously during daytime and nighttime.
Dongjie Cao, Feng Lu, Xiaohu Zhang, Jing Yang   +3 more
doaj   +1 more source

Consistent Calibration of VIRR Reflective Solar Channels Onboard FY-3A, FY-3B, and FY-3C Using a Multisite Calibration Method

Remote Sensing, 2018
The FengYun-3 (FY-3) Visible Infrared Radiometer (VIRR), along with its predecessor, the Multispectral Visible Infrared Scanning Radiometer (MVISR), onboard the FY-1C and FY-1D, has collected continuous daily global observations for 18 years.
Ling Wang, Xiuqing Hu, Lin Chen, Lingli He   +3 more
doaj   +1 more source

Seasonal Trends in Clouds and Radiation over the Arctic Seas from Satellite Observations during 1982 to 2019

Remote Sensing, 2021
A long-term dataset of 38 years (1982–2019) from the Advanced Very High Resolution Radiometer (AVHRR) satellite observations is applied to investigate the spatio-temporal seasonal trends in cloud fraction, surface downwelling longwave flux, and surface ...
Xi Wang, Jian Liu, Bingyun Yang, Yansong Bao, George P. Petropoulos, Hui Liu, Bo Hu   +6 more
doaj   +1 more source

Once is enough in radiometric calibrations

Journal of Research of the National Institute of Standards and Technology, 2007
The successful development of an Optical Technology Division quality system for optical radiation measurement services has provided the opportunity to reconsider the existing calibration procedures to improve quality and reduce costs. We have instituted procedures in our calibration programs to eliminate uninformative repetitive measurements by ...
Fraser, Gerald T., Gibson, Charles E., Yoon, Howard W., Parr, Albert C.   +3 more
openaire   +2 more sources

Deep Learning-Based Radar Composite Reflectivity Factor Estimations from Fengyun-4A Geostationary Satellite Observations

Remote Sensing, 2021
Ground-based weather radar data plays an essential role in monitoring severe convective weather. The detection of such weather systems in time is critical for saving people’s lives and property.
Fenglin Sun, Bo Li, Min Min, Danyu Qin
doaj   +1 more source

The Application of Deep Convective Clouds in the Calibration and Response Monitoring of the Reflective Solar Bands of FY-3A/MERSI (Medium Resolution Spectral Imager)

Remote Sensing, 2013
Based on simulated reflectance, deep convective clouds (DCC) can be used as an invariant target to monitor the radiometric response degradation of the FY-3A/MERSI (Medium Resolution Spectral Imager) reflective solar bands (RSBs).
Lin Chen, Xiuqing Hu, Na Xu, Peng Zhang
doaj   +1 more source

The Uncertainty of SNO Cross-Calibration for Satellite Infrared Channels

Remote Sensing, 2023
The on-orbit radiometric calibration is a fundamental task in quantitative remote sensing applications. A widely used calibration method is the cross-calibration based on Simultaneous Nadir Observation (SNO), which involves using high-precision reference
Zhong Gu, Lin Chen, Huixing Dai, Lin Tian, Xiuqing Hu, Peng Zhang   +5 more
doaj   +1 more source

Characteristics of Lightning Activities over the Tibetan Plateau Based on Satellite Detection and Its Circulation Background Analysis

Atmosphere, 2023
Based on the detection data obtained by the LMI (Lightning Mapping Imager)—China’s first satellite-based lightning observation payload—from 2018–2022, combined with the ERA5 (ECMWF Reanalysis v5) reanalysis data of the same period, the temporal and ...
Jie Zhu, Shulin Zhi, Suling Ren
doaj   +1 more source