Results 81 to 90 of about 88,563,041 (168)

Exploring the Links Between Variations in Snow Cover Area and Climatic Variables Across the Upper Indus Basin Under a Changing Climate

open access: yesInternational Journal of Climatology, Volume 46, Issue 2, February 2026.
Google Earth Engine was utilised to assess snow cover area (SCA) across eight Upper Indus Basin (UIB) subbasins, employing ARIMA for prediction and comparing MODIS datasets using Dunn's test. Spatiotemporal changes were analysed using MK, Sen's slope, and other statistical tests.
Hafsa Muzammal   +4 more
wiley   +1 more source

GCD‐Net: A Gated and Cross‐Dynamically Enhanced Network for Accurate Extraction of Offshore Raft Aquaculture

open access: yesIET Image Processing, Volume 20, Issue 1, January/December 2026.
This study proposes a Gated and Cross‐Dynamically Enhanced Network (GCD‐Net) for accurate extraction of offshore raft aquaculture from Sentinel‐2 imagery. GCD‐Net integrates novel gated residual blocks, cross‐guided attention, and dynamic attention ASPP modules to enhance feature representation and boundary precision.
Yu Wang   +4 more
wiley   +1 more source

Pre-Launch Radiometric Characterization of EMI-2 on the GaoFen-5 Series of Satellites

open access: yes, 2021
The environmental trace gas monitoring instrument (EMI) is a space-borne imaging spectrometer onboard GaoFen-5, which was launched in May 2018, covering wavelengths in the range of 240–710 nm to measure NO2, O3, HCHO, and SO2.
Haijin Zhou   +7 more
core   +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

Distribution map of peaks in mountainous area of the Yesanpo National Park.

open access: yes, 2022
(Republished from [https://directory.eoportal.org/web/eoportal/satellite-missions/g/gaofen-2] under a CC BY license, with permission from [Hebei Zhongke Sino Star Information Technology Co., Ltd], original copyright [2018]).
Anchen Qin (12475863), Zhe Jia (408491)
core   +1 more source

Remote sensing image of the Yesanpo National Park.

open access: yes, 2022
(Republished from [https://directory.eoportal.org/web/eoportal/satellite-missions/g/gaofen-2] under a CC BY license, with permission from [Hebei Zhongke Sino Star Information Technology Co., Ltd], original copyright [2018]).
Anchen Qin (12475863), Zhe Jia (408491)
core   +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

Utilizing Gaofen-3 InSAR time series to reveal land subsidence in Beijing (China)

open access: yes
Various applications have been achieved by Gaofen-3 images, while the time series interferometric synthetic aperture radar (TS-InSAR) analysis was rare due to the issues with baseline instability.
Yakun Han (17880577)   +7 more
core   +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

DSM Quality Assessment of GF-7 Satellite [PDF]

open access: yes
The Gaofen-7 (GF-7) satellite was launched on November 3, 2019. It can achieve 1:10000 scale stereo mapping and serve the application needs of basic surveying and mapping, natural resources monitoring and geographic information resource construction ...
Y. Li   +5 more
core   +2 more sources

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