Results 61 to 70 of about 40,312,078 (138)

Fast Vessel Detection in Gaofen-3 SAR Images with Ultrafine Strip-Map Mode

, 2017
This study aims to detect vessels with lengths ranging from about 70 to 300 m, in Gaofen-3 (GF-3) SAR images with ultrafine strip-map (UFS) mode as fast as possible.
Lei Liu, Bin Lei, Xiaolan Qiu, Zongxu Pan   +3 more
core   +1 more source

Evapotranspiration Everywhere, All the Time: Towards a Unified View From Earth Observation

Global Change Biology, Volume 32, Issue 5, May 2026.
This paper discusses the evolution and revolution of Earth observation for evapotranspiration (ET), as we advanced from the first Landsat satellite and development of ET models through the progression of increasingly higher resolution across international space agencies and commercial industry with increasing ET model sophistication, cloud computing ...
Joshua B. Fisher, Martha C. Anderson, Diego G. Miralles, Kanishka Mallick, Paul C. Stoy, Youngryel Ryu, Wim G. M. Bastiaanssen   +6 more
wiley   +1 more source

Capabilities of Chinese Gaofen-3 Synthetic Aperture Radar in Selected Topics for Coastal and Ocean Observations

, 2018
Gaofen-3 (GF-3), the first Chinese spaceborne synthetic aperture radar (SAR) in C-band for civil applications, was launched on August 2016. Some studies have examined the use of GF-3 SAR data for ocean and coastal observations, but these studies ...
Tianyu Zhang, Tong Jia, Bingqing Huang, Xiao-Ming Li   +3 more
core   +1 more source

Concurrent Variations in Air–Sea Heat Fluxes and Sea Ice Extensions Under Cold‐Air Outbreaks: The First Joint Buoy–Cruise Observational Results in the Bohai Sea

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract The air–sea interface near seasonal ice edges notably regulates the regional climate but remains poorly understood. We present the first coordinated buoy–cruise measurements in the Bohai Sea—the world's lowest‐latitude seasonal ice zone—during the winter of 2024–2025.
Yulin Lu, Xiangzhou Song, Jianxi Dong, Hongjun Su, Yunwei Yan, Xuhua Cheng, Shijian Hu, Feiyang Wang, Zhuoqi Chen, Xiao Cheng   +9 more
wiley   +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

Multitemporal mid-infrared imagery based calibration and super resolution for Gaofen-4

, 2018
Gaofen-4 is the first optical geostationary satellite in China and it is in operation since 2016. Unfortunately, the mid-infrared band has a Ground Spatial Distance (GSD) of 400 m, which is low and limits its application in temperature retrieval.
Guo, Yi (R18457), Lei Xin, Yi Guo, Li, Feng, Xin, Lei, Jia, Xiuping, Xiuping Jia, Feng Li   +7 more
core   +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

Multi-Frame Super-Resolution of Gaofen-4 Remote Sensing Images

, 2017
Gaofen-4 is China’s first geosynchronous orbit high-definition optical imaging satellite with extremely high temporal resolution. The features of staring imaging and high temporal resolution enable the super-resolution of multiple images of the same ...
Jin Liu, Jieping Xu, Zongfu Huang, Yonghui Liang   +3 more
core   +1 more source

Research on the Control Point Extraction Method of Chinese Gaofen 7 Satellite Using Altimeter and Footprint Camera [PDF]

, 2020
Satellite laser altimetry is one of the most advanced information acquisition technologies in Earth observation system. It can provide high-accuracy elevation information, however, due to the lack of detail intensity information, its planimetric accuracy
Yinqiao Cai, Zhijie Zhang, Xiaohua Tong, Binbin Li, Huan Xie, Xie Huan, Tong Xiaohua, Zhang Zhijie, Li Binbin, Cai Yinqiao   +9 more
core   +2 more sources