Results 381 to 390 of about 23,698,312 (402)

Mapping Forest Height and Aboveground Biomass by Integrating ICESat‐2, Sentinel‐1 and Sentinel‐2 Data Using Random Forest Algorithm in Northwest Himalayan Foothills of India

Geophysical Research Letters, 2021
The present study aims to map forest canopy height by integrating ICESat‐2 and Sentinel‐1 data and investigate the effect of integrating forest canopy height information with Sentinel‐2 data‐derived spectral variables on the prediction of spatial ...
S. Nandy, Ritika Srinet, H. Padalia
semanticscholar   +1 more source

Sentinel-1 mission operations concept

2012 IEEE International Geoscience and Remote Sensing Symposium, 2012
In line with the overall Sentinel operations strategy, Sentinel-1, the next European C-Band SAR mission following ERS and ENVISAT, will be operated based on a stable and predefined observation scenario. During the Full Operations Capacity of the mission, this observation scenario will make optimum use of the SAR duty cycle within the technical ...
Siegfried Schmuck, Betlem Rosich, Pier Bargellini, Pierre Potin, Henri Laur   +4 more
openaire   +2 more sources

Grassland monitoring based on Sentinel-1

Remote Sensing for Agriculture, Ecosystems, and Hydrology XXI, 2019
Grassland occupies a large proportion of utilised agricultural area, especially in mountainous regions. Despite its importance current and reliable data on grassland yields and cutting frequencies with a sufficient spatial coverage are lacking. Both are essential for optimizing the use of grassland, nature conservation and policy consultation.
Stephanie Redl, Melanie Wagner, Stephan Hartmann, Robert Siegmund   +3 more
openaire   +2 more sources

Sentinel-1 System capabilities and applications

2014 IEEE Geoscience and Remote Sensing Symposium, 2014
The paper provides an overview of the Copernicus Sentinel-1 system capabilities and applications. In particular, the characteristics of the Sentinel-1 SAR imaging modes and their key performance parameters are described. In addition, the Sentinel-1 SAR interferometry (InSAR) capabilities, especially for TOPS InSAR and the strategy for maintaining the ...
Ramon Torres, Malcolm Davidson, Dirk Geudtner, Paul Snoeij, Bjorn Rommen   +4 more
openaire   +2 more sources

Sen1Floods11: a georeferenced dataset to train and test deep learning flood algorithms for Sentinel-1

2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2020
Accurate flood mapping at global scale can support disaster relief and recovery efforts. Improving flood relief efforts with more accurate data is of great importance due to expected increases in the frequency and magnitude of flood events due to climate
Derrick Bonafilia, B. Tellman, Tyler Anderson, Erica Issenberg   +3 more
semanticscholar   +1 more source

Self-Supervised SAR-Optical Data Fusion of Sentinel-1/-2 Images

IEEE Transactions on Geoscience and Remote Sensing, 2022
The effective combination of the complementary information provided by huge amount of unlabeled multisensor data (e.g., synthetic aperture radar (SAR) and optical images) is a critical issue in remote sensing.
Yuxing Chen, L. Bruzzone
semanticscholar   +1 more source

Sentinel-1 SAR system and mission

2017 IEEE Radar Conference (RadarConf), 2017
The paper provides an overview of the Copernicus Sentinel-1 mission, which includes Sentinel-1A (S-1A) and Sentinel-1B (S-1B) satellites, and the characteristics of its SAR system. Sentinel-1 uses pre-programmed SAR mode operations to provide a high revisit frequency and systematic global SAR image coverage.
Pierre Potin, Bjorn Rommen, Francisco Ceba-Vega, David Bibby, Svein Lokas, Paul Snoeij, Ignacio Navas-Traver, Dirk Geudtner, Ramon Torres, Steve Osborne   +9 more
openaire   +2 more sources

GMES Sentinel-1 FDBAQ performance analysis

2009 IEEE Radar Conference, 2009
Modern operational and/or high resolution SAR satellite missions impose stringent requirements on on-board data compression such as a higher data reduction ratio, more flexibility, and faster data throughput. A novel approach is Flexible Dynamic Block Adaptive Quantization (FDBAQ). This method outperforms currently used Block Adaptive Quantization with
P. Snoeij, E. Attema, MONTI-GUARNIERI, ANDREA VIRGILIO, ROCCA, FABIO   +3 more
openaire   +2 more sources

Sensitivity of Sentinel-1 backscatter to characteristics of buildings

International Journal of Remote Sensing, 2017
In this study, Sentinel-1 interferometric wide swath (IW) mode backscatter is analysed with respect to physical parameters of buildings in Tallinn, Estonia.
Karlis Zalite, Thomas Jagdhuber, Kaupo Voormansik, Kalev Koppel, Kalev Koppel   +4 more
openaire   +4 more sources

Sentinel-1 high resolution soil moisture

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
The systematic retrieval of near surface soil moisture (SSM) fields at high resolution (e.g., 0.1-1.0 km) is a challenging task that requires the exploitation of new retrieval algorithms and SAR data with advanced observational capabilities (in terms of spatial/temporal resolution, radiometric accuracy, very large swath, long term continuity and rapid ...
F Mattia, A Balenzano, G Satalino, F Lovergine, A Loew, J Peng, UWegmuller, M Santoro, O Cartus, K DabrowskaZielinska, J Musial, M W JDavidson, S Yueh, S Kim, N Das, A Colliander, J Johnson, J Ouellette, JWalker, X Wu, H McNairn, A Merzouki, J Powers, T Caldwell, DEntekhabi, M Cosh, T Jackson   +26 more
openaire   +3 more sources