NDLI: Numerical simulation of the Russian scatterometer: Choice of width swath

Content Provider	IEEE Xplore Digital Library
Author	Karaev, V. Panfilova, M. Titchenko, Y. Meshkov, E. Balandina, G. Kuznetsov, Y. Shlaferov, A.
Copyright Year	2015
Description	Author affiliation: Inst. of Appl. Phys., Nizhny Novgorod, Russia (Karaev, V.; Panfilova, M.; Titchenko, Y.; Meshkov, E.; Balandina, G.) \|\| Rostovskii Sci. Res. Inst. of Radio Commun., Rostov-na-Donu, Russia (Kuznetsov, Y.; Shlaferov, A.)
Abstract	SeaWinds scatterometer with an orbit altitude of 800 km was chosen as a prototype of the first Russian orbital scatterometer. A reduction of the orbit altitude to 650 km has brought about two competing approaches to the choice of swath width: either to remain the original 1800 km swath or the incidence angles by reducing the swath to 1500 km. The advantage of a wider swath is the best covering of the ocean surface. However, this leads to an increase of local incidence angles and thus to a decrease of the backscattered signal power. The selection criterion is the minimal error in wind speed and wind direction retrieval. Numerical simulation was carried out for both swath widths. The data were processed and the accuracy of wind speed and wind direction retrieval was estimated. The results showed that the accuracy of wind speed retrieval is rather high for both swaths, while the accuracy of wind direction retrieval for a wider swath is lower than that required by the scatterometer technical specifications. Thus, the swath of the new scatterometer should be 1500 km.
Starting Page	4905
Ending Page	4908
File Size	268771
Page Count	4
File Format	PDF
e-ISBN	9781479979295
DOI	10.1109/IGARSS.2015.7326931
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-26
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radar measurements Spaceborne radar Wind speed Accuracy Sea measurements Radar antennas numerical simulation radar cross section wind speed scatterometer
Content Type	Text
Resource Type	Article

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