Results 51 to 60 of about 1,035 (137)

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

Automatic Ship Detection Based on RetinaNet Using Multi-Resolution Gaofen-3 Imagery [PDF]

Remote Sensing, 2019
Independent of daylight and weather conditions, synthetic aperture radar (SAR) imagery is widely applied to detect ships in marine surveillance. The shapes of ships are multi-scale in SAR imagery due to multi-resolution imaging modes and their various shapes.
Yuanyuan Wang, Chao Wang, Hong Zhang, Yingbo Dong, Sisi Wei   +4 more
openaire   +2 more sources

Ambiguities Suppression for Azimuth Multichannel SAR Based on ${L_{2,q}}$ Regularization With Application to Gaofen-3 Ultra-Fine Stripmap Mode

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The azimuth multichannel synthetic aperture radar (SAR) technology is capable of overcoming the minimum antenna area constraint and achieving high-resolution and wideswath (HRWS) imaging.
Mingqian Liu, Bingchen Zhang, Zhongqiu Xu, Yan Zhang, Lihua Zhong, Yirong Wu   +5 more
doaj   +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

Intelligent Wind Retrieval from Chinese Gaofen-3 SAR Imagery in Quad Polarization [PDF]

Journal of Atmospheric and Oceanic Technology, 2019
AbstractThis study proposes the use of the artificial neural network for wind retrieval with ChineseGaofen-3(GF-3) synthetic aperture radar (SAR) data. More than 10 000 images acquired in wave mode and quad-polarization strip map were collected over global seas throughout the 2-yr mission.
Weizeng Shao, Shuai Zhu, Xiaopeng Zhang, Shuiping Gou, Changzhe Jiao, Xinzhe Yuan, Liangbo Zhao   +6 more
openaire   +1 more source

Remote Sensing of Grassland Plant Biodiversity and Functional Traits

Ecology and Evolution, Volume 15, Issue 8, August 2025.
Here we review developments in the remote sensing of grassland plant biodiversity and functional traits from 2018 to 2024. New tools, technology, and methods are presented, their uncertainties, limitations, and potential highlighted, and recommendations are provided for future directions to help make the most of this rapidly changing and growing area ...
Samuel Hayes, Fiona Cawkwell, Karen L. Bacon, Astrid Wingler   +3 more
wiley   +1 more source

Integrating Historical Crop Rotation Changes Into Soil Organic Matter Mapping in the Cropland of Southeastern China

Earth's Future, Volume 13, Issue 8, August 2025.
Abstract The prediction of cropland soil organic matter (SOM) is crucial for understanding ecosystem services such as food production and carbon sequestration. However, the influence of historical agricultural management practices on soil properties is often overlooked in current SOM digital mapping studies.
Furong Zhou, Jie Xue, Zheng Wang, Wuze Jin, Zhou Shi, Qiangyi Yu, Lianqing Zhou, Songchao Chen   +7 more
wiley   +1 more source

A Flash Flood Numerical Modeling and Forecasting Tool in Mountainous Small Catchments Based on a 2‐D Hydrodynamic Model

Earth and Space Science, Volume 12, Issue 7, July 2025.
Abstract The forecasting and early warning of flash floods in mountainous areas are extremely challenging. Here, we establish an integrated model of Baseflow‐Rainfall‐Interception‐Flood (BRIF) to support efficient numerical modeling and potential forecasting of flash flood in future.
Fulei Wang, Chaojun Ouyang, Huicong An, Xiaoqing Chen, Shu Zhou, Qingsong Xu   +5 more
wiley   +1 more source

A PCA and Mesh Adaptation‐Based Format for High Compression of Earth Observation Optical Data With Applications in Agriculture

International Journal for Numerical Methods in Engineering, Volume 126, Issue 12, 30 June 2025.
ABSTRACT Earth Observation optical data are critical for agriculture, supporting tasks like vegetation health monitoring, crop classification, and land use analysis. However, the large size of multispectral and hyperspectral datasets poses challenges for storage, transmission, and processing, particularly in precision farming and resource‐limited ...
Luca Liverotti, Nicola Ferro, Matteo Matteucci, Simona Perotto   +3 more
wiley   +1 more source

Climate Change and Topography Drive the Expansion of Betula ermanii in the Alpine Treeline Ecotone of the Changbai Mountain

Ecology and Evolution, Volume 15, Issue 5, May 2025.
Over the past 20 years, the expansion rate of Betula ermanii in the alpine ecotone of Changbai Mountain varied with mountain aspects. We found that interactions between climate and topographic factors played a more significant role in B. ermanii's expansion than any single dominant factor.
Yingyi Chen, Yongfeng Gu, Wen J. Wang, Lei Wang, Xiaodong Li, Shengwei Zong, Mai‐He Li, Zhengfang Wu, Hong S. He, Yu Cong, Ming Jiang   +10 more
wiley   +1 more source