Results 1 to 10 of about 4,043 (165)

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

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   +2 more sources

Comparative Study on Potential Landslide Identification with ALOS-2 and Sentinel-1A Data in Heavy Forest Reach, Upstream of the Jinsha River

open access: yesRemote Sensing, 2022
Many SAR satellites such as the ALOS-2 satellite and Sentinel-1A satellite can be used in Interferometric Synthetic Aperture Radar (InSAR) to identify landslides. As their wavelengths are different, they can perform differently in the same area.
Chen Cao, Kuanxing Zhu, Jianping Chen
exaly   +3 more sources

Improving Accuracy Estimation of Forest Aboveground Biomass Based on Incorporation of ALOS-2 PALSAR-2 and Sentinel-2A Imagery and Machine Learning: A Case Study of the Hyrcanian Forest Area (Iran)

open access: yesRemote Sensing, 2018
The main objective of this research is to investigate the potential combination of Sentinel-2A and ALOS-2 PALSAR-2 (Advanced Land Observing Satellite -2 Phased Array type L-band Synthetic Aperture Radar-2) imagery for improving the accuracy of the ...
Sasan Vafaei   +2 more
exaly   +3 more sources

Interferometric SAR Observation of Permafrost Status in the Northern Qinghai-Tibet Plateau by ALOS, ALOS-2 and Sentinel-1 between 2007 and 2021

open access: yesRemote Sensing, 2022
With global warming, permafrost is undergoing degradation, which may cause thawing subsidence, collapse, and emission of greenhouse gases preserved in previously frozen permafrost, change the local hydrology and ecology system, and threaten ...
Lichuan Zou, Chao Wang, Yixian Tang
exaly   +3 more sources

Assessing the Accuracy of ALOS/PALSAR-2 and Sentinel-1 Radar Images in Estimating the Land Subsidence of Coastal Areas: A Case Study in Alexandria City, Egypt

open access: yesRemote Sensing, 2021
Recently, the Differential Interferometric Synthetic Aperture Radar (DInSAR) technique is widely used for quantifying the land surface deformation, which is very important to assess the potential impact on social and economic activities. Radar satellites
Mona F Kaiser   +2 more
exaly   +3 more sources

برآورد زی‌تودۀ چوبی روی‌زمینی با به‌کارگیری داده‌های راداری در جنگل‌های آمیختۀ هیرکانی (مطالعۀ موردی: جنگل خیرود نوشهر مازندران) [PDF]

open access: yesمجله جنگل ایران, 2022
در این پژوهش، قابلیت داده‌های راداری قطبش کامل ماهوارۀ ALOS-2 در برآورد زی‌تودۀ چوبی روی‌زمینی جنگل‌های آمیختۀ هیرکانی بررسی شد. به‌منظور آماربرداری ابتدا با جنگل‌گردشی مناطق مناسب با شیب کم شناسایی و 127 قطعه نمونۀ مربع‌شکل با مساحت 900 متر مربع در آن ...
قاسم رنود   +4 more
doaj   +1 more source

Identification of geological hazards based on the combination of InSAR technology and disaster background indicators

open access: yes地质科技通报, 2022
Synthetic aperture radar interferometry (InSAR) is an important method to obtain surface deformation information. Due to the limitations of InSAR data acquisition and the accuracy errors produced in the data processing, the identification of hidden ...
Jiahui Dong   +5 more
doaj   +1 more source

基于InSAR数据分析四川盆地南部长宁页岩气区块地表形变场基本特征

open access: yesDizhen xuebao, 2022
近年来随着我国页岩气大规模开采,四川盆地南部活动构造相对稳定的地区出现了一系列微震和有感地震,甚至是破坏性地震。这些地震是否为工业开采所诱发,目前已有研究从时空相关性给出了一些统计推断,本文则从形变观测角度分析页岩气开采能否产生可以检测到的地面形变,以揭示形变信息与页岩气开采的关系,尝试为页岩气开采提供有效的监测手段。基于长波ALOS-2卫星雷达数据对长宁页岩气区块近两三年内的InSAR地表形变展开探测,检测页岩气大规模生产可能造成的地面形变及其基本特征,同时使用Sentinel ...
Yuxin Bao   +7 more
doaj   +1 more source

Coseismic displacement fields and the slip mechanism of the 2021 Mw 6.7 Hovsgol earthquake in Mongolia constrained by Sentinel-1 and ALOS-2 InSAR

open access: yesGIScience & Remote Sensing, 2023
On 11 January 2021, an Mw 6.7 earthquake, which involved a complex rupture mechanism, occurred in Lake Hovsgol, Mongolia. This study measured the earthquake’s 3-D coseismic surface displacement fields using interferometric synthetic aperture radar (InSAR)
Taewook Kim, Hyangsun Han
doaj   +1 more source

ASSESSING THE EFFECT OF ALOS-2 DATA UTILIZATION ON THE ACCURACY OF ESTIMATION VERTICAL AND HORIZONTAL DEFORMATION COMPONENTS IN THE AREA OF HARD COAL MINING EXPLOITATION IN POLAND BY USING DIFFERENTIAL SYNTHETIC APERTURE RADAR INTERFEROMETRY [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Mining-induced deformations are characterized by high deformation rates. These deformations consist of both vertical and horizontal components, which should not be neglected during the monitoring of such areas.
K. Pawluszek-Filipiak   +4 more
doaj   +1 more source

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