Intercomparison of Models for CYGNSS Delay-Doppler Maps at a Validation Site in the San Luis Valley of Colorado

James D Campbell,Christopher S Ruf,Seung-Bum Kim,Davide Comite,Scott T Gleason,Jiyue Zhu,Erik Hodges,Amer Melebari,Amir Azemati,Haokui Xu,Leila Guerriero,Laura Dente,Ruzbeh Akbar,Bowen Ren,Mahta Moghaddam,Leung Tsang,Nazzareno Pierdicca,Joel T Johnson,Alexandra Bringer

doi:10.1109/igarss47720.2021.9553296

Intercomparison of Models for CYGNSS Delay-Doppler Maps at a Validation Site in the San Luis Valley of Colorado

James D Campbell, Christopher S Ruf + Show 17 more

https://doi.org/10.1109/igarss47720.2021.9553296

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Publication Date: Jul 11, 2021

Citations: 4

Affiliation: University of Southern California, University of Michigan–Ann Arbor, Jet Propulsion Laboratory, Sapienza University of Rome, University Corporation for Atmospheric Research, University of Rome Tor Vergata, Massachusetts Institute of Technology, The Ohio State University

#Cyclone Global Navigation Satellite System #Cyclone Global Navigation Satellite System Data + Show 8 more

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Abstract

A comparison of three different electromagnetic scattering models for delay-Doppler maps (DDMs) of global navigation satellite system reflectometry (GNSS-R) from land is performed along a Cyclone Global Navigation Satellite System (CYGNSS) track over a validation site in the San Luis Valley, Colorado, USA. The peak reflectivity profiles of all three models and of the corresponding CYGNSS data are found to be in general agreement and are strongly influenced by topography. An intercomparison of DDM structure for one acquisition is also included. Efforts to refine the model results using a high resolution lidar survey are ongoing.

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