Results 11 to 20 of about 6,415,065 (280)
On the dielectric properties and normalized radar cross-section of crude oil-contaminated sea ice
, 2017 This thesis explores the effects of crude oil spilled beneath young sea ice on the dielectric properties and normalized radar cross-section of the ice at microwave (C-band) frequencies. The dielectric profile, also referred to as the complex permittivity profile, of sea ice is a governing factor in how the ice scatters incident electromagnetic waves ...
Neusitzer, Thomas David
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Calibration of the Normalized Radar Cross Section for Sentinel-1 Wave Mode [PDF]
IEEE Transactions on Geoscience and Remote Sensing, 2019 Sentinel-1 (S-1) is a two-satellite constellation for continuity of operational synthetic aperture radar (SAR) observations. Wave mode (WV) is the default mode over open ocean for S-1 to monitor global ocean waves and wind field. Therefore, proper radiometric calibration is essential to accurately infer these geophysical quantities. Based on the global
Huimin Li 0002 +3 more
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On Sea Ice/Water Discrimination by Airborne Weather Radar
IEEE Access, 2020 We consider a conceptual approach for the applicability of airborne weather radar for the sea ice/water discrimination and estimation of the sea ice age.
Alexey Nekrasov +6 more
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Geochemical analysis of SAR backscattering (Sentinel-1) on global ocean oil spill cases
European Journal of Remote Sensing, 2023 The oil spill is one of the most impactful sources of marine pollution on the ocean surface, detected by the SAR sensors as dark areas, regions with low backscatter values. Due to the complex mixture of hydrophobic hydrocarbons, mineral oil spills change
José Milton Neves de Souza Júnior +10 more
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Impact of emulsification of crude oil on normalized radar cross section [PDF]
Journal of Oceanology and Limnology, 2019 The emulsification of crude oil is caused by the oil flowing into the water, resulting in the increase of oil film tension, viscosity, water content, and volume, which brings great harm to the marine ecological environment and difficulties for the cleanup of marine emergency equipment.
Jie Guo +3 more
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94 GHz Radar Backscatter Characteristics of Alpine Glacier Ice
Geophysical Research Letters, 2023 Measuring the radar backscatter characteristics of glacier ice at different frequencies and incidence angles is fundamental to predicting the glacier mapping performance of a sensor. However, such measurements at 94 GHz do not exist.
W. D. Harcourt +4 more
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Sea Surfaces Scattering by Multi-Order Small-Slope Approximation: a Monte-Carlo and Analytical Comparison [PDF]
AUT Journal of Electrical Engineering, 2019 L-band electromagnetic scattering from two-dimensional random rough sea surfaces are calculated by first- and second-order Small-Slope Approximation (SSA1, 2) methods.
Nafiseh Radkani, Bijan Zakeri
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Microwave Specular Measurements and Ocean Surface Wave Properties
Sensors, 2021 Microwave reflectometers provide spectrally integrated information of ocean surface waves several times longer than the incident electromagnetic (EM) wavelengths.
Paul A. Hwang +2 more
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Frontiers in Marine Science, 2022 In this study, sea surface scattering with and without surfactants is predicted using the two-scale boundary perturbation model (BPM) and the advanced integral equation model (AIEM) augmented with two different damping models, i.e., the Marangoni one and
Tingyu Meng +6 more
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Are Pixel Intensities Proportional To Radar Cross Section In SAR Images? [PDF]
, 2012 Radar cross section has long been the measurement quantity of choice to describe the radar reflectivity of point targets in calibrated synthetic aperture radar (SAR) images.
Döring, Björn J. +3 more
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