SPAD value estimate of the growth process of rice by DMC satellite data

An operational processing and analysis system for rice growth monitoring has been developed at Japan Manned Space Systems Corporation and Tokyo University of Agriculture. The system processes DMC images having capability to multi-temporal observation during the growing season and generates image maps for rice growing status through satellite-derived NDVI-SPAD value. The monitoring was conducted in paddy fields of northern part of Japan. Mapping algorithm was established by correlation NDVI derived from DMC images and ground collected SPAD value. The relation of NDVI and SPAD value can be grouped greatly between varieties in the growing process of rice.