CASHEW AREA MAPPING USING SENTINEL-2 IN ARIYALUR DISTRICT OF TAMIL NADU, INDIASabthapathy M., Ragunath Kaliaperumal, Pazhanivelan S., Velmurugan S., Sudarmanian N.S. and Thirumeninathan S.
A research study was conducted for mapping Cashew plantation in Ariyalur district of Tamil Nadu using Sentinel-2 data. Extensive demand for raw Cashew, favours the district in large production area of Cashew. High-resolution, cloud-free Sentinel-2 data was acquired and pre-processed with GIS tools. Significant dB values for Cashew plantation was identified by using ground truth data collected during the survey, which was then further used to classify the Cashew pixels in the study area using supervised classification methodology. The Cashew area in Ariyalur district was found to be 26844 ha during the year 2021. Accuracy assessment was done using Confusion matrix with the ground truth points collected. The overall classification was done with an accuracy of 85 per cent and kappa score of 0.7.