Premium
Analysis of GNSS‐R delay‐Doppler maps from the UK‐DMC satellite over the ocean
Author(s) -
Clarizia M. P.,
Gommenginger C. P.,
Gleason S. T.,
Srokosz M. A.,
Galdi C.,
Di Bisceglie M.
Publication year - 2009
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2008gl036292
Subject(s) - satellite , gnss applications , remote sensing , buoy , doppler effect , satellite system , reflectometry , geodesy , sampling (signal processing) , environmental science , satellite navigation , geology , meteorology , computer science , geography , physics , telecommunications , time domain , oceanography , astronomy , detector , computer vision
A study of the retrieval of sea surface roughness using Global Navigation Satellite System‐Reflectometry (GNSS‐R) from satellite is presented. Delay‐Doppler Maps (DDMs) from the SSTL UK‐DMC satellite are analyzed to retrieve directional Mean Square Slopes (MSSs). Results are compared to theoretically‐derived MSSs and in situ measurements from co‐located buoys of the National Data Buoy Center (NDBC), showing good agreement in most cases. Here, the whole DDM, a more complete source of information, is exploited for the first time using satellite GNSS‐R data. These are potentially able to provide high spatial and temporal sampling, and therefore offer an improved way to observe wind and waves by means of a very modest instrument.