TY - GEN
T1 - COSMO-SkyMed data observation of reconstruction process in agricultural fields damaged by the March 11 2011 tsunami
AU - Yonezawa, Chinatsu
AU - Shibata, Jun
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/11/4
Y1 - 2014/11/4
N2 - To extract annual changes in paddy field areas, we analyzed COSMO-SkyMed observation data relating to an area damaged by the 2011 Tohoku earthquake. Backscattering coefficient (gamma naught: γ0) values were calculated for images obtained on June 4 2011, June 2 2012, and June 9 2013. Mean backscattering coefficients were calculated for each agricultural parcel using vector boundary data. Areas of relatively low backscattering coefficients correspond with fields that were flooded in relation to rice planting, or fields that have not been repaired. The area of low backscattering coefficients expanded annually between the inland area and the coastal area, showing the progress of paddy field reconstruction. The spatial distribution of COSMO-SkyMed data backscattering coefficient patterns in 2011 were similar to that of TerraSAR-X data obtained 1 day after the COSMO-SkyMed data.
AB - To extract annual changes in paddy field areas, we analyzed COSMO-SkyMed observation data relating to an area damaged by the 2011 Tohoku earthquake. Backscattering coefficient (gamma naught: γ0) values were calculated for images obtained on June 4 2011, June 2 2012, and June 9 2013. Mean backscattering coefficients were calculated for each agricultural parcel using vector boundary data. Areas of relatively low backscattering coefficients correspond with fields that were flooded in relation to rice planting, or fields that have not been repaired. The area of low backscattering coefficients expanded annually between the inland area and the coastal area, showing the progress of paddy field reconstruction. The spatial distribution of COSMO-SkyMed data backscattering coefficient patterns in 2011 were similar to that of TerraSAR-X data obtained 1 day after the COSMO-SkyMed data.
KW - 2011 Tohoku earthquake
KW - X-band
KW - disaster reconstruction
KW - paddy fields
KW - synthetic aperture radar
UR - http://www.scopus.com/inward/record.url?scp=84911377763&partnerID=8YFLogxK
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U2 - 10.1109/IGARSS.2014.6946873
DO - 10.1109/IGARSS.2014.6946873
M3 - Conference contribution
AN - SCOPUS:84911377763
T3 - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 2074
EP - 2077
BT - International Geoscience and Remote Sensing Symposium (IGARSS)
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - Joint 2014 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2014 and the 35th Canadian Symposium on Remote Sensing, CSRS 2014
Y2 - 13 July 2014 through 18 July 2014
ER -