Results 11 to 20 of about 524 (137)

Evapotranspiration Everywhere, All the Time: Towards a Unified View From Earth Observation. [PDF]

open access: yesGlob Chang Biol
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 ...
Fisher JB   +6 more
europepmc   +2 more sources

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

open access: yesSensors, 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   +3 more
doaj   +1 more source

National Sea Area Use Dynamic Monitoring Based on GF-3 SAR Imagery

open access: yesLeida xuebao, 2017
GaoFen-3 (GF-3) is the first commercial C-Band multi-polarimetric Synthetic Aperture Radar (SAR) satellite that was launched by China. The characteristics observed by both all-day and all-weather observation depict significant advantages of national sea ...
Fan Jianchao   +5 more
doaj   +1 more source

Robust boundary extraction of great lakes by blocking Active Contour Model using Chinese GF-3 SAR data: a case study of Danjiangkou reservoir, China

open access: yesThe Journal of Engineering, 2019
Chinese Gaofen-3 (GF-3) satellite is a spaceborne multi-polarisation synthetic aperture radar (SAR) mission in C-band and it can be applied in the multiple fields. GF-3 can achieve accurate water boundary extraction based on its high-resolution SAR image
Shilin Niu   +6 more
doaj   +1 more source

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

open access: yesRemote Sensing, 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 ...
Xiao-Ming Li   +3 more
doaj   +1 more source

Decimeter-Level Geolocation Accuracy Updated by a Parametric Tropospheric Model with GF-3

open access: yesSensors, 2018
GaoFen-3 (GF-3) is a multi-polarization C-band synthetic aperture radar (SAR) satellite in China with a resolution of up to 1 m. Up to now, the geolocation accuracy of GF-3 could be improved to 3 m. According to the current study, there still exist meter-
Wentao Wang, Jiayin Liu, Xiaolan Qiu
doaj   +1 more source

Wind speed retrieval from the Gaofen-3 synthetic aperture radar for VV- and HH-polarization using a re-tuned algorithm

open access: yesEuropean Journal of Remote Sensing, 2021
In this study, a re-tuned algorithm based on the geophysical model function (GMF) C-SARMOD2 is proposed to retrieve wind speed from Synthetic Aperture Radar (SAR) imagery collected by the Chinese C-band Gaofen-3 (GF-3) SAR.
Weizeng Shao   +4 more
doaj   +1 more source

Block Adjustment without GCPs for Chinese Spaceborne SAR GF-3 Imagery

open access: yesSensors, 2018
The Gaofen-3 (GF-3) satellite is the first C-band multi-polarization synthetic aperture radar (SAR) with the ability of high-accuracy mapping in China. However, the Ground Control Points (GCPs) are essential to ensure the accuracy of mapping for GF-3 SAR
Guo Zhang   +9 more
doaj   +1 more source

GF-3 Polarimetric Data Quality Assessment Based on Automatic Extraction of Distributed Targets

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
With the needs of continuous data quality assessment for massive Gaofen-3 (GF-3) polarimetric data, an automatic and efficient quality evaluation method is urgently needed.
Songtao Shangguan   +4 more
doaj   +1 more source

Error Source Analysis and Correction of GF-3 Polarimetric Data

open access: yesRemote Sensing, 2018
The GaoFen-3 (GF-3) satellite is the first polarimetric synthetic aperture radar (PolSAR) satellite in China. With a designed in-orbit life of 8 years, it will provide large amounts of PolSAR data for ocean monitoring, disaster reduction, and many other ...
Sha Jiang   +4 more
doaj   +1 more source

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