NDLI: Directional distribution of wind vectors observed by ERS-1/AMI scatterometer

Content Provider	IEEE Xplore Digital Library
Author	Ebuchi, N.
Copyright Year	1993
Description	Author affiliation: Fac. of Sci., Tohoku Univ., Sendai, Japan (Ebuchi, N.)
Abstract	The frequency distribution of the wind directions observed by the ERS-1/AMI scatterometer is investigated to examine the effects of errors in the model function used to retrieve the wind vectors from backscattering measurements. It is found that scatterometer-derived wind vectors have some directivity relative to the antenna beams. This directivity is related to errors in the model function used to retrieve the wind vectors. As already pointed out by previous calibration/validation studies, the ESA pre-launch CMOD-2 model function is not accurate. The errors in the CMOD-2 cause an irregular distribution distorted with reference to the antenna beams. The CMOD-FD (Freilich/Dunbar) model function is much improved compared with the CMOD-2, but still has some directivity relative to the beams. Similar directivity is also found in the SASS-2 wind data.
Starting Page	1385
Ending Page	1387
File Size	190857
Page Count	3
File Format	PDF
ISBN	0780312406
DOI	10.1109/IGARSS.1993.322078
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-08-18
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ambient intelligence Radar measurements Wind Frequency Information retrieval Algorithm design and analysis Maximum likelihood estimation Performance analysis Antenna measurements Geophysical measurements
Content Type	Text
Resource Type	Article

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