Results 21 to 30 of about 8,388,711 (274)

A generalized simulation capability for rotating- beam scatterometers [PDF]

open access: yesAtmospheric Measurement Techniques, 2019
Rotating-beam wind scatterometers exist in two types: rotating fan-beam and rotating pencil-beam. In our study, a generic simulation frame is established and verified to assess the wind retrieval skill of the three different scatterometers: SCAT on ...
Z. Li, A. Stoffelen, A. Verhoef
doaj   +1 more source

A Reconstruction Approach to Scatterometer Wind Vector Field Retrieval [PDF]

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2011
This paper approaches wind field estimation from scatterometer measurements as the inversion of a noisy nonlinear sampling operation. The forward sampling model is presented and made discrete for practical purposes. Generally, the wind estimation problem is ill-posed at high resolution, which means that there are more parameters to estimate than ...
Brent A. Williams, David G. Long
openaire   +1 more source

Comparison of single-Doppler and multiple-Doppler wind retrievals in Hurricane Matthew (2016) [PDF]

open access: yesAtmospheric Measurement Techniques, 2021
Hurricane Matthew (2016) was observed by the ground-based polarimetric Next Generation Weather Radar (NEXRAD) in Miami (KAMX) and the National Oceanic and Atmospheric Administration WP-3D (NOAA P-3) airborne tail Doppler radar near the coast of the ...
T.-Y. Cha, M. M. Bell
doaj   +1 more source

Sea wave modeling with X-band COSMO-SkyMed© SAR-derived wind field forcing and applications in coastal vulnerability assessment [PDF]

open access: yesOcean Science, 2013
In this paper, X-band COSMO-SkyMed© synthetic aperture radar (SAR) wind field data are first used to force coastal wind wave modeling for both sea wave numerical simulation and coastal vulnerability assessment purposes. The SAR-based wind field retrieval
G. Benassai   +3 more
doaj   +1 more source

Ocean wind fields retrieved from radar-image sequences [PDF]

open access: yesIEEE International Geoscience and Remote Sensing Symposium, 2003
An algorithm is presented for retrieving wind vectors from radar-image sequences acquired by a standard nautical radar near at near grazing incidence. The radar operates at X-band (9.5 GHz) with horizontal and vertical polarization in transmit and receive. The algorithm consists of two parts, one for wind direction and another for wind speed retrieval.
Heiko Dankert   +3 more
openaire   +4 more sources

Application of Multi-Source Data Fusion in Surface Wind Field Identification in Severe Convective Weather

open access: yesGaoyuan qixiang, 2022
Based on the detection data of doppler weather radar combined with the conventional observation data and the EAR5 reanalysis data, this paper comprehensively analyzes the synoptic environment and the evolution characteristics of radar reflectivity, and a
Zixin WANG   +3 more
doaj   +1 more source

Algorithm for sea surface wind retrieval from TerraSAR-X and TanDEM-X data [PDF]

open access: yes, 2014
A Geophysical Model Function (GMF), denoted XMOD2, is developed to retrieve sea surface wind field from Xband TerraSAR-X/TanDEM-X (TS-X/TD-X) data. In contrast to the previously developed XMOD1, XMOD2 consists of a nonlinear GMF, and thus, it depicts ...
Li, Xiao Ming, Lehner, Susanne
core   +1 more source

C-band scatterometer and wind-field retrieval

open access: yesCanadian Journal of Remote Sensing, 2003
The wind scatterometer is a microwave active sensor capable of simultaneously measuring the normalized radar cross section (?o) of the sea surface with high radiometric accuracy at different azimuth angles. The scattering process governing the electromagnetic wave - sea surface interaction allows these measurements to be related to the sea surface wind
MIGLIACCIO, Maurizio   +2 more
openaire   +4 more sources

A field-wise wind retrieval algorithm for satellite scatterometers [PDF]

open access: yesIGARSS '98. Sensing and Managing the Environment. 1998 IEEE International Geoscience and Remote Sensing. Symposium Proceedings. (Cat. No.98CH36174), 1998
Traditional satellite scatterometer wind retrieval algorithms consist of point-wise wind estimation and pointwise ambiguity removal. Point-wise estimation yields multiple estimates, or ambiguities, for the average near-surface ocean wind in each scatterometer resolution element, requiring subsequent ambiguity removal.
C.G. Brown, D.G. Long
openaire   +1 more source

Validating wind field models for power system impact studies [PDF]

open access: yes, 2012
To integrate wind power into the electrical power system studies need to be made of its impact. Wind plants are stochastic in nature and this makes them differ from traditional plants. One method to model the stochastic nature of wind plants is to create
D. Infield   +9 more
core   +3 more sources

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