Article
Engineering, Aerospace
K. C. Niraj, Sharad Kumar Gupta, Dericks Praise Shukla
Summary: This paper uses DInSAR and MTInSAR techniques to study surface displacement in the Kotrupi Region. DInSAR accurately measures displacements but is limited by various factors, while MTInSAR uses data from multiple periods to reduce atmospheric disturbances and unwrapping errors. The results show significant deformation in the Kotrupi area after a landslide, with MTInSAR providing more accurate results compared to DInSAR.
ADVANCES IN SPACE RESEARCH
(2022)
Article
Remote Sensing
Bowen Chi, Huifu Zhuang, Hongdong Fan, Yang Yu, Lei Peng
Summary: In this paper, an adaptive patch-based Goldstein filter (AP-Goldstein filter) is proposed, which adapts patch sizes based on pseudo-variation coefficient and controls noise suppression parameter alpha through pseudo-coherence. The proposed method effectively suppresses phase noise of interferograms while maintaining edge detailed information and improving filtering automation.
INTERNATIONAL JOURNAL OF REMOTE SENSING
(2021)
Article
Geochemistry & Geophysics
Hanwen Yu, Ning Cao, Yang Lan, Mengdao Xing
Summary: This article proposes a multisystem interferometric data fusion framework, TSDFF, which combines data from different SAR systems to enhance SAR performance. TSDFF allows datasets from different SAR sensors to help each other, thus expanding the application scope of each sensor.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2021)
Article
Geochemistry & Geophysics
Antonio Pepe, Pietro Mastro, Cathleen E. Jones
Summary: This article introduces an innovative space-time adaptive multilooking technique for sequence of differential synthetic aperture radar interferograms, based on directional statistics theory. The approach proposes a new method for the selection of statistically homogenous pixels, exclusively analyzing the multitemporal sequence of full resolution DInSAR interferograms, and demonstrates its effectiveness and simplicity.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2021)
Article
Geochemistry & Geophysics
Xiang Ding, Jian Kang, Zhe Zhang, Yan Huang, Jialin Liu, Naoto Yokoya
Summary: In this article, a novel convolutional sparse coding method called CoComCSC is proposed for interferometric phase restoration in SAR images. CoComCSC effectively reduces noise and preserves phase details, demonstrating superior performance compared to state-of-the-art methods. The study also indicates CoComCSC's potential for generating high-resolution DEM products.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Environmental Sciences
Bala Raju Nela, Gulab Singh, Shradha Mohanty, Rajat, Jorge Arigony-Neto, Andrey F. Glazovsky
Summary: Glacier velocity is a crucial parameter for glacier dynamics, and the 3-pass DInSAR technique using Sentinel-1A/1B satellite is effective in mapping glacier flow velocities with high-resolution and detailed information.
GEOCARTO INTERNATIONAL
(2022)
Article
Geosciences, Multidisciplinary
S. Palomino-Angel, R. F. Vazquez, H. Hampel, J. A. Anaya, P. Mosquera, S. W. Lyon, F. Jaramillo
Summary: This study develops a novel approach using DInSAR to detect water level changes in small lakes, based on subsequential pixel-wise observations of the Sentinel-1B sensor. The study findings show that the DInSAR-derived water level changes are consistent with precipitation and capture the peak of the wet seasons. Furthermore, the accumulated water level changes can be explained by differences in lake area.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geochemistry & Geophysics
Feng Xiao, Andrea Monti Guarnieri, Zegang Ding, Marco Manzoni
Summary: The proposed improved split-spectrum method is used to address ionospheric phase errors in TOPSAR interferograms. By reducing the number of calculations while maintaining accuracy, the method has been verified with real Sentinel-1 TOPSAR data processing.
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
(2022)
Article
Environmental Sciences
Wenjie He, Jianjun Zhu, Juan M. Lopez-Sanchez, Cristina Gomez, Haiqiang Fu, Qinghua Xie
Summary: This study evaluates the capacity of TanDEM-X interferometric synthetic aperture radar (InSAR) data assisted by an external digital terrain model (DTM) to estimate forest canopy height. A ground-to-volume ratio estimation model is proposed for precise estimation of canopy height. The results show that the proposed method has high accuracy and performance in forest height estimation, compared with existing methods and LiDAR data.
Article
Environmental Sciences
Hande Mahide Yesilmaden, Cagri Alperen Inan, Bedri Kurtulus, Mustafa Can Canoglu, Ozgur Avsar, Moumtaz Razack
Summary: The study utilizes satellite imagery and SAR technology to analyze land subsidence in the Konya Plain in Turkey, showing that excessive groundwater extraction leads to significant subsidence rates, with a maximum value reaching 16 cm. The researchers used DInSAR technique and analyzed satellite images from three periods to provide accurate information on ground deformation.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Geography, Physical
Fengming Hu, Feng Wang, Yexian Ren, Feng Xu, Xiaolan Qiu, Chibiao Ding, Yaqiu Jin
Summary: This paper investigates the error sources of the array-InSAR interferograms and proposes a hybrid 3D phase unwrapping approach for 3D reconstruction. A hypothesis test is developed to identify the phase ambiguity and three indicators are proposed to identify reliable arcs. The L-1 norm approach is used to detect unwrapping errors and a two-tie network strategy is employed for global optimization. Experimental results demonstrate that the proposed algorithm can eliminate errors and provide a viable solution for rapid 3D SAR imaging.
ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING
(2022)
Article
Geosciences, Multidisciplinary
Emanuele Intrieri, Pierluigi Confuorto, Silvia Bianchini, Carlo Rivolta, Davide Leva, Samuele Gregolon, Vincenzo Buchignani, Riccardo Fanti
Summary: This study proposes a two-folded procedure using ground displacement data measured by a ground-based interferometric radar to detect sinkhole precursors and generate a risk zonation map. The analysis revealed that Camaiore did not experience sinkhole-related subsidence, but measured vertical movements correlated with water table oscillations, suggesting the potential detection of sinkhole precursors. The risk zonation map identifies specific areas for monitoring and can inform urban planning and risk management strategies in sinkhole-prone areas.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Chemistry, Analytical
Alejandro Mestre-Quereda, Juan M. Lopez-Sanchez, Jordi J. Mallorqui
Summary: Geometrical decorrelation is one of the sources of noise in Synthetic Aperture Radar (SAR) interferograms, and it can be compensated by range filtering. Multiple range filtering methods have been proposed, and this manuscript analyzes their advantages and limitations. A new adaptive filtering approach is also proposed, which improves filtering accuracy, especially in steep areas and vegetation-covered regions.
Article
Environmental Sciences
Gianmarco Bonaldo, Amedeo Caprino, Filippo Lorenzoni, Francesca da Porto
Summary: Satellite interferometry is a powerful tool for monitoring structural displacements. This paper proposes a methodology for remotely detecting displacements and assessing building criticalities using satellite interferometric data. The methodology was applied to a case study in Rome for an eight-year-long monitoring period.
Article
Environmental Sciences
Ashish Joshi, Shefali Agrawal, R. P. Singh
Summary: ISRO has launched the EOS-4 SAR satellite for all-weather imaging in various applications. This study focuses on generating a Digital Elevation Model (DEM) using the EOS-4 interferometric data from Alwar, Rajasthan, India. It is the first study to evaluate the feasibility of EOS-4 for SAR Interferometry (InSAR) and demonstrates successful DEM generation through SAR interferometric processing algorithms.
REMOTE SENSING APPLICATIONS-SOCIETY AND ENVIRONMENT
(2023)
Article
Geography, Physical
Atanu Bhattacharya, Tobias Bolch, Kriti Mukherjee, Tino Pieczonka, Jan Kropacek, Manfred F. Buchroithner
JOURNAL OF GLACIOLOGY
(2016)
Review
Environmental Sciences
Atanu Bhattacharya, Kriti Mukherjee
GEOCARTO INTERNATIONAL
(2017)
Article
Geochemistry & Geophysics
Sohan Lal, A. Joshi, Sandeep, Monu Tomer, Parveen Kumar, Chun-Hsiang Kuo, Che-Min Lin, Kuo-Liang Wen, M. L. Sharma
Article
Environmental Sciences
Kriti Mukherjee, Atanu Bhattacharya, Tino Pieczonka, Susmita Ghosh, Tobias Bolch
Article
Geochemistry & Geophysics
Sohan Lal, A. Joshi, Sandeep, Monu Tomer, Parveen Kumar, Chun-Hsiang Kuo, Che-Min Lin, Kuo-Liang Wen, M. L. Sharma
Article
Multidisciplinary Sciences
Owen King, Atanu Bhattacharya, Rakesh Bhambri, Tobias Bolch
SCIENTIFIC REPORTS
(2019)
Article
Environmental Sciences
M. Kneib, E. S. Miles, S. Jola, P. Buri, S. Herreid, A. Bhattacharya, C. S. Watson, T. Bolch, D. Quincey, F. Pellicciotti
Summary: Ice cliffs are crucial for the mass balance of debris-covered glaciers, but assessing their importance is hindered by the lack of large-scale datasets. New semi-automated methods utilizing multispectral imaging have been developed to map ice cliffs from glacier to regional scales, showing promising results for application in diverse geographical and seasonal conditions.
REMOTE SENSING OF ENVIRONMENT
(2021)
Article
Environmental Sciences
Owen King, Atanu Bhattacharya, Tobias Bolch
Summary: This study examined glacier surging at the Geladandong ice caps on the Tibetan Plateau and identified 19 surge-type outlet glaciers. It was found that the mass budgets of surge-type glaciers vary depending on the portion of the surge-cycle captured by geodetic data. The results highlight the importance of accurate surge-type glacier inventories and the need for maximizing geodetic data coverage over glacierised regions containing surge-type glaciers.
ADVANCES IN CLIMATE CHANGE RESEARCH
(2021)
Article
Multidisciplinary Sciences
Atanu Bhattacharya, Tobias Bolch, Kriti Mukherjee, Owen King, Brian Menounos, Vassiliy Kapitsa, Niklas Neckel, Wei Yang, Tandong Yao
Summary: The study highlights the increasing glacier mass loss rates in High Mountain Asia since the 1960s, with the highest rates observed in Central Himalaya and Northern Tien Shan regions. Summer temperature increase is identified as the main driver of long-term mass loss trend, even in regions where glaciers were previously in balance with climate. Multi-platform satellite observations over six decades reveal widespread glacier mass loss across High Mountain Asia, reflecting regional climatic differences.
NATURE COMMUNICATIONS
(2021)
Article
Geography, Physical
Atanu Bhattacharya, Kriti Mukherjee, Owen King, Shubhendu Karmakar, S. N. Remya, Anil Kulkarni, Jan Kropacek, Tobias Bolch
Summary: Glaciers are rapidly shrinking globally, posing a threat to the sustainability of meltwater and altering regional hydrology. This study estimates the multi-temporal mass balance of glaciers in the upper Alaknanda basin and neighboring transboundary glaciers, and identifies the influence of climatic and non-climatic factors on ice loss. The findings highlight the significant impact of summer temperature on glacier mass budget and suggest that smaller glaciers may disappear in the coming decades if current climate trends continue.
GLOBAL AND PLANETARY CHANGE
(2023)
Article
Geochemistry & Geophysics
Sajid Ghuffar, Tobias Bolch, Ewelina Rupnik, Atanu Bhattacharya
Summary: This article introduces the Corona Stereo Pipeline (CoSP) for processing Corona KH-4 stereo panoramic imagery. The pipeline utilizes the SuperGlue feature matcher to automatically match feature points, generates ground control points (GCPs), and employs a modified collinearity equations camera model to model the imaging geometry. The study demonstrates that using CoSP with well-distributed GCPs and preprocessing for film bending can result in accurate 3D reconstruction. Furthermore, the Corona DEM computed with CoSP showed promising results for computing long-term glacier elevation changes over large areas.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Green & Sustainable Science & Technology
Owen King, Atanu Bhattacharya, Sajid Ghuffar, Alex Tait, Sam Guilford, Aurora C. Elmore, Tobias Bolch
Article
Geosciences, Multidisciplinary
Ritu Raj Nath, Gautam Kumar, M. L. Sharma, S. C. Gupta
GEOSCIENCE LETTERS
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
Manoj Kuri, Manoj K. Arora, Atanu Bhattacharya, M. L. Sharma
2017 FOURTH INTERNATIONAL CONFERENCE ON IMAGE INFORMATION PROCESSING (ICIIP)
(2017)
Article
Geochemistry & Geophysics
Chhavi Chaudhary, Mukat Lal Sharma
PURE AND APPLIED GEOPHYSICS
(2017)
