Results 21 to 30 of about 335,786 (287)
Combined Sentinel-1A With Sentinel-2A to Estimate Soil Moisture in Farmland [PDF]
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 In this article, seven filter algorithms were compared. The Lee sigma method was more suitable for estimating soil moisture (SM) than the other filtering methods under different land cover types.
Ying Liu, Jiaxin Qian, Hui Yue
doaj +2 more sources
Interferometric Evaluation of Sentinel-1A TOPS data [PDF]
, 2015 The European radar satellite Sentinel 1A was launched in April 2014 as the first of the Copernicus Space Component. The Sentinel 1 system has been conceived to provide repeat-pass interferometric capabilities with wide area coverage for medium resolution applications.
Yague-Martinez, Nestor +3 more
openaire +3 more sources
Sentinel-1A SAR data for global urban mapping: Preliminary results
2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015 In this paper, Sentinel-1A SAR data were evaluated for urban extent extraction using the KTH-Pavia Urban Extractor. The methodology is based on texture measures and spatial statistics as well as decision level fusion. Sentinel-1A data in Stripmap mode (SM) or Interferometric Wide Swath mode (IW) were acquired in five cities around the world.
Alexander W. Jacob, Yifang Ban
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RICE CROP MAPPING USING SENTINEL-1A PHENOLOGICAL METRICS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 Rice is the most important food crop in Vietnam, providing food more than 90 million people and is considered as an essential source of income for majority of rural populations.
C. F. Chen +4 more
doaj +3 more sources
Sentinel 1A SAR Backscattering Signature of Maize and Cotton Crops
Madras Agricultural Journal, 2017 Crop discrimination is a key issue for agricultural monitoring using remote sensing techniques. Synthetic Aperture Radar (SAR) data are advantageous for crop monitoring and classification because of their all-weather imaging capabilities.
R. Kumaraperumal +3 more
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Sentinel-1A Calibration Support during Routine Operation
, 2016 Sentinel-1A (S-1A) is the first of two satellites for global Earth monitoring in C-band in the frame of the COPERNI-CUS program of the European Commission and the European Space Agency (ESA).
Schmidt, Kersten +3 more
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Sentinel-1A Product Geolocation Accuracy: Commissioning Phase Results [PDF]
Remote Sensing, 2015 Sentinel-1A (S1A) is an Earth observation satellite carrying a state-of-the-art Synthetic Aperture Radar (SAR) imaging instrument. It was launched by the European Space Agency (ESA) on 3 April 2014. With the end of the in-orbit commissioning phase having been completed at the end of September 2014, S1A data products are already consistently providing ...
Adrian Schubert +4 more
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Inter-Comparability of Radiometric Performance between Sentinel-1A and Sentinel-1B [PDF]
, 2021 The study shows that Sentinel-1B is more sensitive for low backscatter due to higher TX power and higher RX pattern gain compared to Sentinel-1A. Therefore targets covering a wide backscatter range are compared.
Miranda, Nuno +2 more
core
Characteristics of Surface Deformation in Lanzhou with Sentinel-1A TOPS [PDF]
Geosciences, 2020 While surface deformations and their impact on buildings have been observed in the city of Lanzhou, it is difficult to find studies of surface deformation and the influential factors in the recent decades. This study was designed to detect the spatial position of these surface deformations and to understand the mechanism behind them.
Yi He +5 more
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Multi-Feature Classification of Multi-Sensor Satellite Imagery Based on Dual-Polarimetric Sentinel-1A, Landsat-8 OLI, and Hyperion Images for Urban Land-Cover Classification. [PDF]
Sensors (Basel), 2018 This paper focuses on evaluating the ability and contribution of using backscatter intensity, texture, coherence, and color features extracted from Sentinel-1A data for urban land cover classification and comparing different multi-sensor land cover ...
Zhou T, Li Z, Pan J.
europepmc +2 more sources