Zobrazeno 1 - 10
of 236
pro vyhledávání: '"geophysical model function"'
Autor:
Abdalmenem Owda, Andrey Pleskachevsky, Xiaoli Guo Larsen, Merete Badger, Dalibor Cavar, Charlotte Bay Hasager
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 9415-9428 (2024)
This article presents comprehensive validation of specific sea state parameters (SSPs) and synthetic aperture radar (SAR)-derived wind speeds (${{u}_{\text{SAR}}}$). The article introduces a novel approach to retrieving roughness length (${{z}_0}$) b
Externí odkaz:
https://doaj.org/article/b9696012fc934e4a91b0b72ab27c25ec
Autor:
Yuko Takeyama, Shota Kurokawa
Publikováno v:
Atmosphere, Vol 15, Iss 6, p 686 (2024)
In the present study, a new geophysical model function (GMF) is developed for the X-band synthetic aperture radar (SAR) on board the Advanced Satellite with New System Architecture for Observation-2 (ASNARO-2) to retrieve accurate offshore wind speed
Externí odkaz:
https://doaj.org/article/d3fd92c05b8a4c41b7c4e42d710db615
Publikováno v:
Geosciences, Vol 13, Iss 12, p 361 (2023)
Verification of the C-band geophysical model functions (GMF) for the open ocean and the Gorky reservoir was carried out using Sentinel-1 IW-mode Synthetic aperture radar (SAR) images. CMOD5.N, CMOD7, GMF for the Caspian Sea, and CSARMOD2 were conside
Externí odkaz:
https://doaj.org/article/f2a7884fffaf4180b957155fb001e1eb
Publikováno v:
Geo-spatial Information Science, Vol 0, Iss 0, Pp 1-13 (2022)
This paper presents the TDS-1 GNSS reflectometry wind Geophysical Model Function (GMF) response to GPS block types. The observables were extracted from Delay Doppler Maps (DDMs) after taking the receiver antenna gains effects and GNSS-R geometry effe
Externí odkaz:
https://doaj.org/article/cbd73cdeedc94432bd37464457043b10
Publikováno v:
Remote Sensing, Vol 15, Iss 8, p 1985 (2023)
This study presents an approach for friction velocity and aerodynamic drag coefficient retrieval utilizing C-band VH SAR observations from Sentinel-1. The dataset contained 14 SAR images collected under six hurricane scenes co-analyzed with stepped f
Externí odkaz:
https://doaj.org/article/0246a6182a344849b77c4a0dd77cb102
Autor:
Charles Peureux, Nicolas Longépé, Alexis Mouche, Céline Tison, Cédric Tourain, Jean‐Michel Lachiver, Danièle Hauser
Publikováno v:
Earth and Space Science, Vol 9, Iss 6, Pp n/a-n/a (2022)
Abstract SWIM on board CFOSAT is the first spaceborne, low incidence, rotating scatterometer, aiming at measuring in near‐real time ocean waves spectra. With five off‐nadir beams at incidences between 2° and 10° plus one nadir beam, it covers t
Externí odkaz:
https://doaj.org/article/99d2a2bf855241cc8305e4fe8dff04e8
Publikováno v:
IEEE Access, Vol 8, Pp 78652-78662 (2020)
The sea surface temperature (SST) actively impacts the backscattering coefficient measured by scatterometers and the wind retrieval accuracy. However, none of the geophysical model functions (GMFs) currently used in operational wind retrieval conside
Externí odkaz:
https://doaj.org/article/ca56ff6520df4ec5b9cca917e6433045
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 13, Pp 5569-5579 (2020)
This article presents a novel ocean vector wind (OVW) retrieval algorithm for remote sensing of ocean winds, using the precipitation radar (PR) and tropical rainfall measurement mission (TRMM) microwave imager (TMI) that operated for >17 years on the
Externí odkaz:
https://doaj.org/article/c15bcb5d916d4c9093638f1d4a5963e4
Akademický článek
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Publikováno v:
Remote Sensing, Vol 14, Iss 10, p 2335 (2022)
Under low to medium wind speeds and no rainfall, the retrieved vector wind from a scatterometer is accurate and reliable. However, under high wind conditions, the currently used geophysical model function (GMF), such as NSCAT-2, for wind vector retri
Externí odkaz:
https://doaj.org/article/50ef965930a54ce5935698feeafe4f34