Results 21 to 30 of about 6,503 (283)

A semiempirical model of the normalized radar cross section of the sea surface, 2. Radar modulation transfer function [PDF]

open access: yesJournal of Geophysical Research, 2003
Multiscale composite models based on the Bragg theory are widely used to study the normalized radar cross section (NRCS) over the sea surface. However, these models are not able to correctly reproduce the NRCS in all configurations. In particular, even if they may provide consistent results for vertical transmit and receive (VV) polarization, they fail
Vladimir Kudryavtsev   +2 more
exaly   +3 more sources

Sea Ice Detection Method Using the Dependence of the Radar Cross-Section on the Incidence Angle

open access: yesRemote Sensing
The method for sea ice detection using the data from the Dual-frequency Precipitation Radar (DPR) onboard the Global Precipitation Measurement (GPM) satellite data is suggested. The approach is based on the analysis of the shape of normalized radar cross-
Maria Panfilova, Vladimir Karaev
doaj   +2 more sources

Sea Ice Concentration Manifestation in Radar Signal at Low Incidence Angles Depending on Wind Speed

open access: yesRemote Sensing
In previous studies, the possibilities of Ku-band radar measurements at low incidence angles were investigated for the task of sea ice detection. In this paper, the sensitivity of normalized radar cross-section to sea ice concentration is investigated at
Maria Panfilova, Vladimir Karaev
doaj   +2 more sources

Normalized Radar Scattering Section Simulation and Numerical Calculation of Freak Wave

open access: yesJournal of Marine Science and Engineering, 2022
The improved phase modulation method is used to numerically simulate a two-dimensional freak wave. While generating freak waves at specific positions, the spectral structure of the target spectrum can also be maintained, and the statistical ...
Gengkun Wu, Bin Liu, Lichen Han
doaj   +2 more sources

On the dielectric properties and normalized radar cross-section of crude oil-contaminated sea ice

open access: yes, 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
openaire   +2 more sources

Wind Speed Retrieval Using Global Precipitation Measurement Dual-Frequency Precipitation Radar Ka-Band Data at Low Incidence Angles

open access: yesRemote Sensing, 2022
In this study, sea surface wind speed was retrieved using the Global Precipitation Measurement (GPM) dual-frequency precipitation radar (DPR) Ka-band data. In order to establish the Ka-band model at low incidence angles, the dependence of the DPR Ka-band
Chong Jiang   +4 more
doaj   +1 more source

Ku- and Ka-Band Ocean Surface Radar Backscatter Model Functions at Low-Incidence Angles Using Full-Swath GPM DPR Data

open access: yesRemote Sensing, 2021
This paper presents the results of the first characterization of coincident Ku- and Ka-band ocean surface normalized radar cross section measurements at earth incidence angles 0°–18° using one year of wide swath Global Precipitation Measurement (GPM ...
Alamgir Hossan, William Linwood Jones
doaj   +1 more source

Gale Wind Speed Retrieval Algorithm Using Ku-Band Radar Data Onboard GPM Satellite

open access: yesRemote Sensing, 2022
An algorithm to retrieve the wind speed within a wide swath from the normalized radar cross section (NRCS) is developed for the data of Ku-band radar operating in scanning mode installed onboard the Global Precipitation Measurement (GPM) satellite.
Maria Panfilova, Vladimir Karaev
doaj   +1 more source

Wind Speed Retrieval Algorithm Using Ku-Band Radar Onboard GPM Satellite

open access: yesRemote Sensing, 2021
The algorithm to retrieve wind speed in a wide swath from the normalized radar cross section (NRCS) was developed for the data of Dual Frequency Precipitation Radar (DPR) operating in scanning mode installed onboard a Global Precipitation Measurement ...
Maria Panfilova, Vladimir Karaev
doaj   +1 more source

On Sea Ice/Water Discrimination by Airborne Weather Radar

open access: yesIEEE 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
doaj   +1 more source

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