ERS Scatterometer Ambiguity Removal Scheme Comparison

.......................................................................................................................... 3 Introduction .................................................................................................................... 3 PreScat ....................................................................................................................... 4 VARScat ..................................................................................................................... 5 2D-VAR....................................................................................................................... 7 SCAR .......................................................................................................................... 9 Method of Comparison................................................................................................... 9 Data............................................................................................................................... 10 Comparison Results ...................................................................................................... 11 Statistical Results ..................................................................................................... 11 Activity ................................................................................................................... 11 Performance.......................................................................................................... 13 Large Scale Errors................................................................................................ 13 Wind Vector Performance..................................................................................... 15 Meteorological Cases ............................................................................................... 15 Discussion and Conclusions ......................................................................................... 16 Acknowledgements................................................................................................... 17 References .................................................................................................................... 18 Appendix A .................................................................................................................. 19 CASE I date 2000/01/13 20:47:46......................................................................... 19 CASE III date 2000/01/06 01:35:12....................................................................... 23 CASE IV date 2000/01/19 06:20:17 ...................................................................... 25 CASE V date 2000/01/31 11:22:37 ....................................................................... 27 Scatterometer Ambiguity Removal Scheme Comparison

[1]  R. Daley Atmospheric Data Analysis , 1991 .

[2]  Y. Quilfen,et al.  A High Precision Wind Algorithm For The Ers1 Scatterometer And Its Validation , 1991, [Proceedings] IGARSS'91 Remote Sensing: Global Monitoring for Earth Management.

[3]  H. Roquet,et al.  Towards Direct Variational Assimilation Of Scatiterometer Backscatter Measurements Into Numerical Weather Prediction Models , 1988, International Geoscience and Remote Sensing Symposium, 'Remote Sensing: Moving Toward the 21st Century'..