Results 71 to 80 of about 13,268,437 (192)

Analysis of polarisation features of typical targets in Chengdu using GF-3 fully polarimetric synthetic aperture radar data

The Journal of Engineering, 2019
The fully polarimetric synthetic aperture radar (SAR) data contain much backscatter intensity information and have great advantage for land monitoring.
Xiaoxia Wang, Wei Zhang, Qing Ding, Changli Zheng, Jinghui Luo   +4 more
doaj   +1 more source

Trees Outside Forests (TOFs): A Global Review of Methodological Advances, Limitations, and Framework Innovations

International Journal of Forestry Research, Volume 2026, Issue 1, 2026.
Trees outside forests (TOFs) represent an important natural and anthropogenic resource that contributes significantly to biodiversity conservation, climate resilience, and the protection of forest genetic resources (FGRs). Despite their ecological and socioeconomic importance, TOFs are increasingly declining due to land‐use changes, urbanization ...
Aman Dabral, Pawan Kumar Thakur, Maneesh S. Bhandari, Vishal Johar, Vinita Bisht, Shailesh Pandey, Rama Kant, Rajendra K. Meena, Himanshu Saini, Poulami Jha   +9 more
wiley   +1 more source

AN INTERFEROMETRIC PROCESSING METHOD TO MAINTAIN BOTH ACCURACY AND RESOLUTION OF DEM USING GAOFEN-3 SAR DATA

, 2018
Gaofen-3 (GF-3) is the only in-orbit SAR satellite of China civilian fields. It is designed especially for ocean observation but not for interferometric applications.
X. Zhang, T. Li, X. Gao, Q. Chen, L. Guo, X. Tang   +5 more
core   +1 more source

Rethinking Global Soil Degradation: Drivers, Impacts, and Solutions

Reviews of Geophysics, Volume 63, Issue 4, December 2025.
Abstract The increasing threat of soil degradation presents significant challenges to soil health, especially within agroecosystems that are vital for food security, climate regulation, and economic stability. This growing concern arises from intricate interactions between land use practices and climatic conditions, which, if not addressed, could ...
Nima Shokri, David A. Robinson, Mehdi Afshar, Christine Alewell, Milad Aminzadeh, Emmanuel Arthur, Nils Broothaerts, Grant A. Campbell, Lina Eklund, Surya Gupta, Richard Harper, Amirhossein Hassani, Cathy Hohenegger, Thomas Keller, Maximilian Kiener, Inma Lebron, Kaveh Madani, Tshilidzi Marwala, Francis Matthews, Per Moldrup, Attila Nemes, Panos Panagos, Remus Prăvălie, Matthias C. Rillig, Philipp Saggau, Salome M. S. Shokri‐Kuehni, Pete Smith, Amy Thomas, Lis Wollesen de Jonge, Dani Or   +29 more
wiley   +1 more source

Winter wheat leaf area index inversion by the genetic algorithms neural network model based on SAR data

International Journal of Digital Earth, 2022
The leaf area index (LAI) is an important agroecological physiological parameter affecting vegetation growth. To apply the genetic algorithms neural network model (GANNM) to the remote sensing inversion of winter wheat LAI throughout the growth cycle and
Xiaoping Lu, Xiaoxuan Wang, Xiangjun Zhang, Jun Wang, Zenan Yang   +4 more
doaj   +1 more source

Asymmetry of Cyclonic Sea Surface Wind and Wave Observed by SAR

Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract CyclObs‐derived wind and SWH field are extracted from over 600 dual‐polarized Sentinel‐1 (S‐1) images of around 300 tropical cyclones (TCs) over the past eight years to investigate asymmetry of wind and wave fields during TCs. Fetch analysis and machine learning technique, eXtreme Gradient Boosting (XGBoost), is used to establish a ...
Weizeng Shao, Yuyi Hu, Qingping Zou, Maurizio Migliaccio, Xingwei Jiang   +4 more
wiley   +1 more source

Ship Detection in Gaofen-3 SAR Images Based on Sea Clutter Distribution Analysis and Deep Convolutional Neural Network

Sensors, 2018
Target detection is one of the important applications in the field of remote sensing. The Gaofen-3 (GF-3) Synthetic Aperture Radar (SAR) satellite launched by China is a powerful tool for maritime monitoring. This work aims at detecting ships in GF-3 SAR
Quanzhi An, Zongxu Pan, Hongjian You
doaj   +1 more source

Paleogeography of the Southern Tarim Terrane Revealed by Neoproterozoic Mafic Dyke Swarm in Altyn

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 3, March 2025.
Abstract Using high‐resolution remote sensing images and detailed field investigations, this study provides the spatiotemporal distribution and geometry of the Neoproterozoic giant mafic dyke swarm in the southeastern Tarim Craton, which is crucial for reconstructing the paleogeographic position of the Tarim Craton within the Rodinia supercontinent ...
Xian‐Tao Ye, Wen‐Jun Hu, Chuan‐Lin Zhang, Wei Gan, Rui‐Chen Gao, Ming‐Can Yang   +5 more
wiley   +1 more source

A Joint Suppression Method of Scalloping and Inter-Scan Banding for SAR Images

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Due to a wide swath at the order of hundreds of kilometres, interscan banding (ISB) may occur in both ScanSAR and TOPS modes of a synthetic aperture radar (SAR), leading to degraded image quality. In this aticle, the causes of ISB are analyzed and an ISB
Xinwei An, Wei Yang, Haijun Shen, Hongcheng Zeng, Fei Zou, Jiadong Deng, Can Su, Wei Liu   +7 more
doaj   +1 more source

Detection of Aerial Vehicles Using Satellite Imagery: Comparative Analysis of U‐Net Segmentation Model and YOLO Object Detection Model

International Journal of Aerospace Engineering, Volume 2025, Issue 1, 2025.
In the contemporary defense industry and the realm of air traffic safety, the identification of aircraft on land and in the air is of paramount importance. Contemporary radar systems have the capacity to track aircraft; however, these systems are inherently dependent on human intervention, thereby introducing a heightened risk of undesirable events ...
Gokalp Cinarer, Yavuz Selim Taspinar, Mustafa Zeybek, Zhiguang Song   +3 more
wiley   +1 more source