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The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B5. Beijing 2008
REFERENCES
Chakraborty, M., Panigrahy, S. & Sharma, S., 1997.
Discrimination of rice crop grown under different cultural
practices using temporal ERS-1 synthetic aperture radar data.
ISPRS Journal of Photogrammetry and Remote Sensing, 52(4),
pp. 183-191.
Chakraborty, M., Manjunath, K., Panigrahy, S., Kundu, N. &
Parihar, J., 2005. Rice crop parameter retrieval using multi
temporal, multi-incidence angle Radarsat SAR data. ISPRS
Journal of Photogrammetry and Remote Sensing, 59(5), pp.
310-322.
Grenier, G. & Blackmore, S., 2001. Generation and analysis of
digital terrain models for agricultural applications. In: 3rd
European Conference on Precision Agriculture. Montpellier,
France.
Idso, S., Pinter Jr., P., Jackson, R. & Reginato, R.. 1980.
Estimation of grain yields by remote sensing of crop senescence
rates. Remote Sensing of Environment, 9, pp. 87- 91.
Karjalainen M., Kuittinen R., Junnikkala V., Karvonen T.,
Nguyen Minh Hieu & Tran Thi Thu Ha, 2001. Rice yield
estimation using SAR images, meteorological data and GIS. In:
ERS-Envisat Symposium, Gothenburg, Sweden.
Karjalainen, M., Kaartinen, H., Hyyppa, J. & Kuittinen, R.,
2002. Monitoring agricultural areas using high resolution
satellite radar images. Nordic Association of Agricultural
Scientists (NJF), Proceedings of the Seminar no. 336, Skara,
Sweden.
Karjalainen, M., Kaartinen, H., Hyyppa, J. & Kuittinen, R.,
2004a. Agricultural monitoring in Finland using Envisat
alternating polarization SAR images. In: Envisat Symposium
2004, Salzburg, Austria.
Kaijalainen, M., Kaartinen, H., Hyyppa, J., Laurila, H. &
Kuittinen, R., 2004b. The use of Envisat alternating polarization
SAR images in agricultural monitoring compared with
Radarsat-1 SAR images. In: TheXXth ISPRS Congress, Istanbul,
Turkey, Vol. XXXV(B7/7), pp. 132-137.
Moran, M., Inoue, Y., & Barnes, E., 1997a. Opportunities and
limitations for image-based remote sensing in precision crop
management. Remote Sensing of Environment, 61(3), pp. 319-
346.
Moran, M., Vidal, A., Troufleau, D., Qi, J., Clarke, T., Pinter,
Jr., P., Mitchell, T., Inoue, Y. & Neale, C., 1997b. Combining
multiffequency microwave and optical data for crop
management. Remote Sensing of Environment, 61(1), pp. 96-
109.
Schmidt, F. & Persson A., 2003. Comparison of DEM Data
Capture and Topographic Wetness Indices. Precision
Agriculture, 4(2), pp. 179-192.
Seelan, S., Laguette, S., Casady, G. & Seielstad, G., 2003.
Remote sensing applications for precision agriculture: A
learning community approach. Remote Sensing of Environment,
88, pp. 157-169.
ACKNOWLEDGEMENTS
The research is funded by TEKES AVALI program (Business
Opportunities from Space Technology) and the Ministry of
Agriculture and Forestry in Finland. The authors gratefully
acknowledge these grants. We would also like to thank Kemira
GrowHow Ltd and people at the Kotkaniemi Experimental
Station for the cooperation.