Results 261 to 270 of about 6,503 (283)
Some of the next articles are maybe not open access.

Examining the Impact of a Crude Oil Spill on the Permittivity Profile and Normalized Radar Cross Section of Young Sea Ice

IEEE Transactions on Geoscience and Remote Sensing, 2018
An oil-in-sea ice mesocosm experiment was conducted at the University of Manitoba Sea-Ice Environmental Research Facility from January to March 2016 in which geophysical and electromagnetic parameters of the ice were measured, and general observations about the oil-contaminated ice were made.
Thomas Neusitzer   +2 more
exaly   +2 more sources

The normalized radar cross section of the sea at 10° incidence

IEEE Transactions on Geoscience and Remote Sensing, 2000
W J Plant, W C Keller
exaly   +2 more sources

Interpreting sea surface slicks on the basis of the normalized radar cross‐section model using RADARSAT‐2 copolarization dual‐channel SAR images [PDF]

open access: yesGeophysical Research Letters, 2016
A simple automatic multipolarization technique for discrimination of main types of thin oil films (of thickness less than the radio wave skin depth) from natural ones is proposed.
A Yu Ivanov
exaly   +2 more sources

Correction of SeaWinds Normalized Radar Cross Sections for improved coastal winds

2022 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters (MetroSea), 2022
This paper presents a new methodology to correct the land-contaminated normalized radar cross-section (\sigma_{0}) measurements acquired by the SeaWinds scatterometer, which flew onboard the QuikSCAT satellite platform from 1999 to 2009, operated by the National Aeronautics and Space Administration (NASA).
Giuseppe Grieco   +4 more
openaire   +2 more sources

Calibration of a miniaturized FMCW ATI-SAR for normalized radar cross section measurement

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015
A radiometric calibration scheme that exploits time-domain backprojection is evaluated using a squinted frequency-modulated continuous wave radar and corner reflectors. We find that the calibration scheme compensates for most of the variation in image intensity due to changes in aircraft attitude, and that for good signal to clutter ratios, the return ...
Gordon Farquharson   +2 more
openaire   +1 more source

The Relationship Between Emulsion Film Thickness and Normalized Radar Cross Section Constructed by Experiment

IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020
Microwave remote sensing plays an important role in monitoring the sea surface oil spill, but it has some shortcomings in monitoring oil film thickness. Many scholars have done a lot of work for this. At present, optics, laser and ultraviolet have made some breakthroughs in the study of oil film thickness; In particular, Hyperspectral shows great ...
Jie Guo   +3 more
openaire   +1 more source

The variance of the normalized radar cross section of the sea

Journal of Geophysical Research: Oceans, 1991
The dependence of the variance of the normalized radar cross section of the sea, , on illuminated area and integration time is investigated. We show that the standard expression for this dependence cannot account for the correlation of power received from different points on the surface which is exhibited by microwave backscatter from the sea.
openaire   +1 more source

An Evaluation of NOAA CyGNSS Winds Derived from v3.0 CyGNSS Normalized Bistatic Radar Cross Section

2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021
The NOAA track-wise algorithm, used to infer sea surface wind speed from CyGNSS normalized bistatic radar cross section (NBRCS), is being used in conjunction with v3.0 NBRCS. A performance analysis is provided where NOAA CyGNSS winds derived from v2.1 NBRCS are compared with those derived from v3.0 NBRCS, using available data from August 2018 to ...
Faozi Saïd   +2 more
openaire   +1 more source

Normalized radar cross section of the sea for backscatter: 2. Modulation by internal waves

Journal of Geophysical Research: Oceans, 2010
We report measurements of microwave surface signatures of internal waves with dual‐polarized, coherent, X band radars mounted on three ships and an airplane. In shipboard measurements in the South China Sea, internal waves generally increased the backscattering cross section near the peaks of the internal waves with little detectable decrease afterward.
William J. Plant   +4 more
openaire   +1 more source

Normalized radar cross section analysis of oil-contaminated young Sea ice

2016 USNC-URSI Radio Science Meeting, 2016
Oil spills may be detected in ice-covered waters through the observed changes in its normalized radar cross section (NRCS) data. In this paper, the NRCS sensitivity to the presence of an oil layer beneath the young sea ice is investigated for various sea ice versus oil layer thicknesses.
Nariman Firoozy   +4 more
openaire   +1 more source

Home - About - Disclaimer - Privacy