Results 71 to 80 of about 88,563,041 (168)

ON-ORBIT GEOMETRIC CALIBRATION APPROACH FOR HIGH-RESOLUTION GEOSTATIONARY OPTICAL SATELLITE GaoFen-4 [PDF]

, 2016
The GaoFen-4 (GF-4) remote sensing satellite is China’s first civilian high-resolution geostationary optical satellite, which has been launched at the end of December 2015.
B. Yang, M. Wang, X. Long, Y. Cheng
core   +1 more source

Influence of Atmospheric Scattering on the Accuracy of Laser Altimetry of the GF-7 Satellite and Corrections

, 2021
Satellite laser altimetry can obtain sub-meter or even centimeter-scale surface elevation data over large areas, but it is inevitably affected by scattering caused by clouds, aerosols, and other atmospheric particles.
Xinming Tang, Zhiqiang Zuo, Jinquan Guo, Jiaqi Yao, Guoyuan Li, Jiyi Chen, Shuaitai Zhang, Bo Ai   +7 more
core   +1 more source

Lithology classification integrating multi-source remote sensing data after vegetation suppression: a case study from Inner Mongolia Autonomous Region, China

Geocarto International
Reducing vegetation disturbance in remote sensing images enhances lithology classification accuracy. This study utilized Gaofen-2 (GF-2), Sentinel-2A, Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), and Gaofen-3 (GF-3) satellite ...
Jiaxin Lu, Ling Han, Junfeng Wang, Liangzhi Li, Zhaode Xia   +4 more
doaj   +1 more source

Correction of Non‐Geophysical Errors in SAR Doppler Shift for Ocean Surface Current Retrieval

Earth and Space Science, Volume 13, Issue 4, April 2026.
Abstract Synthetic aperture radar (SAR) data contains Doppler information on ocean surface movement, and the Doppler centroid anomaly (DCA) can be used to quantitatively retrieve ocean surface currents in the line‐of‐sight of radar. However, non‐geophysical errors (NGE) in Doppler information significantly affect retrieval accuracy. Generally, existing
Wenjia Zhao, Yawei Zhao, Yongsheng Xu, Yanlei Du, Xiaolan Qiu, Jinsong Chong   +5 more
wiley   +1 more source

KAUSTSat: Saudi Arabia's First Hyperspectral CubeSat Mission for Earth Observation

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract Developed by the King Abdullah University of Science and Technology (KAUST) to support research in atmospheric science and remote sensing, KAUSTSat represented Saudi Arabia's (and the Middle East's) first research‐focused hyperspectral CubeSat mission for Earth observation.
Victor Angulo, Dario Scilla, Jorge L. Rodriguez, Naif Alsalem, Kasper Johansen, Matthew F. McCabe   +5 more
wiley   +1 more source

A hybrid CNN–transformer network for cloud detection in multi-source Chinese high-resolution remote sensing imagery

GIScience & Remote Sensing
Cloud detection in high-resolution optical remote sensing imagery plays a crucial role in the preprocessing pipeline, directly determining the quality and usability of data for downstream applications.
Xin Li, Lei Lei, Xiujuan Li, XingXing Zhang, YaoZhi Jiang, YiZhu Zhu, Hua Wu   +6 more
doaj   +1 more source

Multi-Mode GF-3 Satellite Image Geometric Accuracy Verification Using the RPC Model

Sensors, 2017
The GaoFen-3 (GF-3) satellite is the first C-band multi-polarization synthetic aperture radar (SAR) imaging satellite with a resolution up to 1 m in China.
Taoyang Wang, Guo Zhang, Lei Yu, Ruishan Zhao, Mingjun Deng, Kai Xu   +5 more
doaj   +1 more source

GIS and SWMM‐Integrated Multi‐Indicator Fuzzy Assessment for Urban Flood Risk in Chengdu

Journal of Flood Risk Management, Volume 19, Issue 1, March 2026.
ABSTRACT Effective assessment of urban flood risk is essential for decision‐making under mixed and uncertain information conditions. This study proposes a multi‐indicator hesitant fuzzy assessment framework integrating hazard, exposure, and vulnerability.
Mingxia Lu, Ting Ni, Jiuping Xu
wiley   +1 more source

A virtual coastal band-driven optimization-based bathymetric approach (VOBA) for optically shallow water with multispectral imagery

GIScience & Remote Sensing
Bathymetry mapping is important for detecting underwater topography. For optically shallow waters, the use of satellite-based high-spatial-resolution imagery (Such as Gaofen-2, Ziyuan-3, Worldview-2) and historical medium-spatial-resolution imagery ...
Yongming Liu, Shilin Tang, Bin Cao, Zhantang Xu, Xulong Liu, Kai Zeng, Yuye Huang, Wendi Zheng   +7 more
doaj   +1 more source

Polarimetric Calibration and Quality Assessment of the GF-3 Satellite Images

Sensors, 2018
The GaoFen-3 (GF-3) satellite is the first fully polarimetric synthetic aperture radar (SAR) satellite designed for civil use in China. The satellite operates in the C-band and has 12 imaging modes for various applications.
Yonglei Chang, Pingxiang Li, Jie Yang, Jinqi Zhao, Lingli Zhao, Lei Shi   +5 more
doaj   +1 more source