Title
The Gnss Reflectometry Response To The Ocean Surface
Abstract
We investigate the Global Navigation Satellite System Reflectometry (GNSS-R) measurements collected by the Space GNSS Receiver-Remote Sensing Instrument (SGR-ReSI) on board the TechDemoSat-1 (TDS-1) satellite. The sensitivity of the SGR-ReSI measurements to the ocean surface winds and waves are characterized. The effects of sea surface temperature, wind direction, and rain are also investigated. The SGR-ReSI measurements exhibited sensitivity through the entire range of wind speeds sampled in this dataset, up to 35 m/s. A significant dependence on the larger waves was observed for winds < 6 m/s. Additionally, an interesting dependence on SST was observed where the slope of the SGR-ReSI measurements is positive for winds < 5 m/s and reverses for winds > 5 m/s. There appeared to be very little wind direction signal, and investigation of the rain impacts found no apparent sensitivity in the data. These results are shown through the analysis of global statistics and examination of a few case studies. This released SGR-ReSI dataset provided the first opportunity to comprehensively investigate the sensitivity of satellite-based GNSS-R measurements to various ocean surface parameters. The upcoming NASA's Cyclone Global Navigation Satellite System (CYGNSS) satellite constellation will utilize a similar receiver to SGI-ReSI and thus this data provides valuable pre-launch knowledge.
Year
DOI
Venue
2016
10.1109/IGARSS.2016.7730461
2016 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
Keywords
Field
DocType
GNSS-R, CYGNSS, Scatterometry, Ocean Surface Winds
Meteorology,Satellite constellation,GNSS reflectometry,Satellite,Wind speed,Sea surface temperature,Computer science,Remote sensing,Wind direction,Ocean surface topography,GNSS applications
Conference
ISSN
Citations 
PageRank 
2153-6996
0
0.34
References 
Authors
1
4
Name
Order
Citations
PageRank
Paul S. Chang12817.04
Zorana Jelenak22712.59
Seubson Soisuvarn3337.98
Faozi Said494.44