TY - JOUR A1 - Yamashita, M. A1 - Yoshimura, M. T1 - INFLUENCE OF SKY CONDITIONS ON ESTIMATION OF PHOTOSYNTHETIC PHOTON FLUX DENSITY FOR AGRICULTURAL ECOSYSTEM JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XLII-3 SP - 2041 EP - 2045 Y1 - 2018/04/30 PB - Copernicus Publications SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XLII-3/2041/2018/ L1 - https://isprs-archives.copernicus.org/articles/XLII-3/2041/2018/isprs-archives-XLII-3-2041-2018.pdf DO - 10.5194/isprs-archives-XLII-3-2041-2018 ER -