Results 91 to 100 of about 13,257,208 (171)

A Three-Hierarchy Evaluation of Polarimetric Performance of GF-3, Compared with ALOS-2/PALSAR-2 and RADARSAT-2

Sensors, 2019
GaoFen-3 (GF-3) is the first Chinese civilian multi-polarization synthetic aperture radar (SAR) satellite, launched on 10 August of 2016, and put into operation at the end of January 2017.
Zezhong Wang, Jian Jiao, Qiming Zeng, Junyi Liu   +3 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

Cross-sensor cropland mapping: evaluating Chinese satellites and Sentinel-2 in the Nile Delta

International Journal of Digital Earth
Expanding the global application of Chinese Earth Observation satellites (CEOSs) data can enhance Earth observation capabilities, especially in data-scarce regions.
Zihang Lou, Xuxiang Feng, Yulong Lv, Yizhou Zhang, Hao Peng, Mingxian Zhao, Ke Liu, Hongyan Wang, Yaqiong Zhang, Pengyang Wang, Tongyao Niu, Le Yu, Dailiang Peng   +12 more
doaj   +1 more source

Enhanced Quantification of Global Carbon Emitters Using Collocated OCO‐3 CO2 and NO2 Observations From Twin Polar‐Orbiting Satellites

Geophysical Research Letters, Volume 52, Issue 16, 28 August 2025.
Abstract Satellite‐based estimates of fossil fuel carbon dioxide (FFCO2) emissions are crucial for global stocktaking but are limited by sparse coverage. As nitrogen dioxide (NO2) observations can enhance CO2 emission estimates, we use NO2 observations from twin polar‐orbiting satellites (GaoFen‐5B and DaQi‐1) to constrain carbon emission estimates ...
Tianyi Xu, Chengxin Zhang, Cheng Liu
wiley   +1 more source

Preliminary analysis of wave retrieval from Chinese Gaofen-3 SAR imagery in the Arctic Ocean

, 2022
Synthetic aperture radar (SAR) is a powerful tool for sea surface monitoring. The 2017–2020 mission of the Chinese Gaofen-3 (GF-3) over the Arctic Ocean provided a unique opportunity to investigate the feasibility of wave retrieval in the Arctic Ocean ...
Xing-Wei Jiang, Wei Shen, Jun-Cheng Zuo, Wei-Zeng Shao, Chi Zhao, Wei-Li Wang   +5 more
core   +1 more source

Comprehensive Analysis of Bias in TEMPO NO2 Column Densities Through Pandora Observations

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 15, 16 August 2025.
Abstract Tropospheric Emissions: Monitoring of Pollution (TEMPO) is the first geostationary satellite instrument to monitor air pollutants across North America. This study uses Pandora observations to analyze the bias in TEMPO Level‐3 total column density of NO2 (TOTNO2) from August 2023 to December 2024.
Masoud Ghahremanloo, Caroline Nowlan, Gonzalo González Abad, Cecilia Garraffo, Xiong Liu, Huiqun Wang, Barron Henderson, Eric Baumann, Lukas Valin, Jeffrey A. Geddes, Xiaoyi Zhao   +10 more
wiley   +1 more source

Application of “GaoFen-1” Satellite Data and “Micro-UAV” Data in Remote Sensing Monitoring in Winter Wheat—Illustrated by a Case of Jizhou in Hebei Province

, 2016
International audienceThis research utilized “GaoFen-1” 2 m panchromatic, 8 m and 16 m multispectral satellite data to monitor the planting area of winter wheat.
Jiao, Weijie, Wang, Haijun, Liu, Yuechen, Han, Xue   +3 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

Forest Aboveground Biomass Estimation Using Multisource Remote Sensing Data and Deep Learning Algorithms: A Case Study over Hangzhou Area in China

Remote Sensing
The accurate estimation of forest aboveground biomass is of great significance for forest management and carbon balance monitoring. Remote sensing instruments have been widely applied in forest parameters inversion with wide coverage and high ...
Xin Tian, Jiejie Li, Fanyi Zhang, Haibo Zhang, Mi Jiang   +4 more
doaj   +1 more source

Spatial Estimation of Soil Organic Matter and Total Nitrogen by Fusing Field Vis–NIR Spectroscopy and Multispectral Remote Sensing Data

Remote Sensing
Accurate and timely acquisition of soil information is crucial for precision agriculture, food security, and environmental protection. Proximal visible near-infrared reflectance (vis–NIR) spectroscopy has been widely employed for rapid and accurate soil ...
Dongyun Xu, Songchao Chen, Yin Zhou, Wenjun Ji, Zhou Shi   +4 more
doaj   +1 more source