Estimationg rice growth parameters using X-band scatterometer data Yihyun Kim 1* , S.Young Hong 1 , Eunyoung Choe 1 and Hoonyol Lee 2 1 National Academy of Agricultural Science, RDA, Korea 2 Department of Geophysics, Kangwon National University, Korea IGARSS2010, Honolulu Hawaii, July 25-30, 2010
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Estimationg rice growth parameters using X-band scatterometer data
IGARSS2010, Honolulu Hawaii, July 25-30, 2010. Estimationg rice growth parameters using X-band scatterometer data. Yihyun Kim 1* , S.Young Hong 1 , Eunyoung Choe 1 and Hoonyol Lee 2. 1 National Academy of Agricultural Science, RDA, Korea - PowerPoint PPT Presentation
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Estimationg rice growth parameters using X-band scatterometer data
Yihyun Kim1*, S.Young Hong1, Eunyoung Choe1 and Hoonyol Lee2
1 National Academy of Agricultural Science, RDA, Korea 2 Department of Geophysics, Kangwon National University, Korea
IGARSS2010, Honolulu Hawaii, July 25-30, 2010
Background1
2
3
4
Material and Methods
Results
Conclusion
Contents
Background
Rice is one of the major crops in Korea
Microwave radar can penetrate cloud cover regardless of weather condition
Ground-based polarimetric scatterometer has advantage of monitoring crop conditions with full polarization and various frequencies
Plant parameters such as LAI, biomass, plant height are highly correlated with backscattering coefficients
ENVISAT SAR data (5.3 GHz, hh-, hv-polarizations, and incidence angles between 28.5° and 40.9°) to monitor rice growth and compared the data with simulation results (Le Toan et al, 1997)
Background
RADARSAT data (5.3 GHz, hh-polarization, and incidence angles between 36° and 46°) was analyzed for monitoring the rice growth in Korea (Hong et al,2000)
Backscattering coefficients from a ground scatterometer are often affected by weather condition the necessity of near-continuous automatic measurement has arisen by the experiment in 2007 (Kim et al, 2008)
Objective
To analyze scattering characteristics of paddy rice obtained from L, C, X-band automatic scatterometer system
Relationship between backscattering coefficients in L, C, X-band and plant parameters with full polarization
Prediction of rice growth parameters using backscattering coefficients in L, C, X-band
Study site - An experimental field at NAAS, Suwon, Korea
Testing varieties : Chuchoungbyeo The size field : 660m2
Materials and Methods
L, C, X-band automatic scatterometer system
Measurement Interval : 1 per 10 min-
utes
L-band
X-band C-band
Specification of the L, C, X-band automatic scatterometer system