Recent studies have demonstrated that Global Navigation Satellite System-Reflectometry (GNSS-R) can be used for global wind-speed measurements over the ocean. Delay-Doppler Maps (DDM) are produced continuously by CYGNSS observatories are currently used for wind speed retrievals either directly or after calculation of global observables. The work presented in this paper shows that fine results can be obtained using the scattered power function observable. Experiments are based on real DDMs collected by the space CYGNSS observatories and by ground truth data processed within the collaborative NASA CYGNSS science team.

An Algorithm for Wind Speed Retrieval from CYGNSS Space Observatories

Addabbo, Pia;M. di Bisceglie;C. Galdi;Giangregorio, Generoso
2018-01-01

Abstract

Recent studies have demonstrated that Global Navigation Satellite System-Reflectometry (GNSS-R) can be used for global wind-speed measurements over the ocean. Delay-Doppler Maps (DDM) are produced continuously by CYGNSS observatories are currently used for wind speed retrievals either directly or after calculation of global observables. The work presented in this paper shows that fine results can be obtained using the scattered power function observable. Experiments are based on real DDMs collected by the space CYGNSS observatories and by ground truth data processed within the collaborative NASA CYGNSS science team.
2018
atmospheric techniques;Global Positioning System;oceanographic techniques;reflectometry;remote sensing by radar;satellite navigation;spaceborne radar;wind;collaborative NASA CYGNSS science team;wind speed retrieval;CYGNSS space observatories;Global Navigation Satellite System-Reflectometry;global wind-speed measurements;Delay-Doppler Maps;global observables;space CYGNSS observatories;Wind speed;Global navigation satellite system;Observatories;Sea surface;Remote sensing;Satellites;Global Navigation Satellite System-Reflectometry;ocean surface winds;CYGNSS
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12070/38313
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