Title :
Offshore wind mapping using synthetic aperture radar and meteorological model data
Author :
Cameron, Lain D. ; Miller, David ; Woodhouse, Lain H.
Author_Institution :
Univ. of Edinburgh, Edinburgh
Abstract :
We introduce an iterative maximum aposteriori probability (MAP) method for combining meteorological model output with synthetic aperture radar for offshore wind field estimation. The MAP approach is demonstrated for 40 ENVISAT ASAR scenes collected for 2004-2006 over the UK Irish Sea. The CMOD4 and CMOD5 geophysical model functions are compared and retrievals using MAP and a simpler directon based windspeed algorithm are validated against in situ mast observations. In particular the CMOD5 MAP algorithm shows promising results showing a RMSE of 2.09 ms-1 .
Keywords :
atmospheric measuring apparatus; maximum likelihood estimation; meteorological radar; offshore installations; synthetic aperture radar; wind; wind power plants; AD 2004 to 2006; CMOD4 geophysical model; CMOD5 MAP algorithm; ENVISAT ASAR scenes; UK Irish Sea; iterative maximum aposteriori probability method; meteorological model data; offshore wind field estimation; offshore wind mapping; synthetic aperture radar; windspeed algorithm; Backscatter; Image analysis; Maximum a posteriori estimation; Meteorological radar; Meteorology; Radar scattering; Sea surface; Spatial resolution; Surface waves; Wind speed; Maximum Aposteriori Probability; Offshore wind; SAR;
Conference_Titel :
OCEANS 2007 - Europe
Conference_Location :
Aberdeen
Print_ISBN :
978-1-4244-0635-7
Electronic_ISBN :
978-1-4244-0635-7
DOI :
10.1109/OCEANSE.2007.4302440