Monitoring and Assessing Rice Crop with Multi-temporal RADARSAT Fine beam mode data in Pathumthani and Ayuatthaya Province of Thailand

摘要

Time series RADARSAT fine beam mode data was acquired from March till June 2002 for Pathumthani, Ayutthaya Area of Thailand to assess and monitor rice crop from the space. An intensive survey was done to collect plant height and biomass information of the rice fields in this area corresponding to satellite pass. Trihedral corner reflectors of size 1meter were installed in order to perform precise geometric correction. The study focuses on exploration of relationship of field data, specially, plant height and water depth, with radar backscatter. The relationship between field parameters and radar backscatter was explored taking all fields, fields with no standing water as well as the test fields with standing water. The relationship was more significant for the fields with standing water with R square value 0.78.