Results 21 to 30 of about 138,786 (104)

Reliability Evaluation of the Joint Observation of Cloud Top Height by FY-4A and HIMAWARI-8

, 2021
It is well known that the measurement of cloud top height (CTH) is important, and a geostationary satellite is an important measurement method. However, it is difficult for a single geostationary satellite to observe the global CTH, so joint observation ...
Qinghui Li, Xuejin Sun, Xiaolei Wang
core   +1 more source

FY-4A/AGRI Aerosol Optical Depth Retrieval Capability Test and Validation Based on NNAeroG

, 2022
The Advanced Geostationary Radiation Imager (AGRI) is one of the main imaging sensors on the Fengyun-4A (FY-4A) satellite. Due to the combination of high spatial and temporal resolution, the AGRI is suitable for continuously monitoring atmospheric ...
Yuhuan Zhang, Lu She, Xingfeng Chen, Jun Liu, Shanwei Liu, Gerrit de Leeuw, Haonan Ding, Yidan Si, Fu Wang, Xingfa Gu, Limin Zhao, Jiaguo Li, Fengjie Zheng   +12 more
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Radiometric Performance Evaluation of FY-4A/AGRI Based on Aqua/MODIS

, 2021
Fengyun-4A (FY-4A) is the first satellite of the Chinese second-generation geostationary orbit meteorological satellites (FY-4). The Advanced Geostationary Radiation Imager (AGRI), onboard FY-4A does not load with high-precision calibration facility in ...
Yingbo Ma, Bo Zhong, Junjun Wu, Aixia Yang   +3 more
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Evaluation and Improvement of FY-4A AGRI Quantitative Precipitation Estimation for Summer Precipitation over Complex Topography of Western China

, 2021
Satellite quantitative precipitation estimation (QPE) can make up for the insufficiency of ground observations for monitoring precipitation. Using an Advanced Geosynchronous Radiation Imager (AGRI) on the FengYun-4A (FY-4A) satellite and rain gauges (RGs)
Yanjiao Xiao, Guirong Xu, Jing Ren, Junchao Wang, Liang Leng, Rong Wan, Wengang Zhang   +6 more
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Robust Tracking Control for Rendezvous in Near‐Circular Orbits

Mathematical Problems in Engineering, Volume 2013, Issue 1, 2013., 2013
This paper investigates a robust guaranteed cost tracking control problem for thrust‐limited spacecraft rendezvous in near‐circular orbits. Relative motion model is established based on the two‐body problem with noncircularity of the target orbit described as a parameter uncertainty.
Neng Wan, Ming Liu, Hamid Reza Karimi, Rongni Yang   +3 more
wiley   +1 more source

Analysis of Dust Detection Algorithms Based on FY-4A Satellite Data

, 2023
Dust detection is essential for environmental protection, climate change assessment, and human health issues. Based on the Fengyun-4A (FY-4A)/Advance Geostationary Radiation Imager (AGRI) images, this paper aimed to examine the performances of two ...
Zixian Feng, Yang, Chen, Yang, Lu, He, Xingwei, Lu Yang, Yahui Che, Lu She, Chen Yang, She, Lu, Che, Yahui, Feng, Zixian, Xingwei He   +11 more
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Assessment of FY-2G, FY-4A, and Himawari-8 Atmospheric Motion Vectors over Southeast Asia and Their Assimilating Impact on the Forecasts of Tropical Cyclone PABUK

, 2022
The spatial coverage of atmospheric motion vectors (AMVs) over Southeast Asia (SEA) is mainly covered by the Himawari-8 (HIMA-8) and FengYun-2 (FY-2) series satellites in the Global Telecommunication System (GTS). With the launch of FengYun-4A (FY-4A), a
Jie Shen, Jaral Yiemwech, Yuanbing Wang, Yaodeng Chen, Mohamed Abdallah Ahmed Alriah   +4 more
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Applicability of the Solar Radiation Products from FY-4A in Plateau Mountainous Areas of Guizhou

, 2022
Based on data from seven observation stations of solar radiation in plateau mountainous areas of Guizhou province， this study investigated the quality of FY-4A ground solar radiation products（hereinafter referred to as FY-4A-GRSP ）and further corrected ...
Liguo DING, Yanbo SHEN, Jun ZHU, Yaheng TAN, Xundan MA   +4 more
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Dynamic Event‐Triggered Robust Model Predictive Control for Quadrotor Trajectory Tracking

International Journal of Robust and Nonlinear Control, Volume 36, Issue 6, Page 3676-3688, April 2026.
ABSTRACT This paper addresses the trajectory tracking problem for a full‐state quadrotor subject to physical model constraints and unknown external disturbances. A robust tube‐based model predictive control (MPC) approach is successfully applied to the system, which is subject to bounded disturbances and hard constraints.
Ali Can Erüst, Fatma Yıldız Taşcıkaraoğlu, İbrahim Beklan Küçükdemiral   +2 more
wiley   +1 more source

Three‐Dimensional Lightning Characteristics of Severe Convective Weather in Shanghai

Meteorological Applications, Volume 33, Issue 2, March/April 2026.
Using 2022–2024 ADTD data, this study analyzes 3D lightning in Shanghai's severe convection. Activity peaks in August and afternoon hours, varies by weather type, and concentrates spatially in Pudong and Chongming. Results provide key references for selecting lightning indicators in forecasting and warning systems. ABSTRACT Using ADTD three‐dimensional
Gaoyue Gu, Zhisu Wang, Peng Wang
wiley   +1 more source