Drought Monitoring Platform (IMAGE) Arizona State University Caption PSI ALERTS, a platform for visualizing natural resources and aiding decisions. Here, ALERTS shows vegetation disturbances derived from 1-kilometer MODIS (gridded maps), the locations of identified disturbances (circles) and Enhanced Vegetation Index (EVI) time series at a disturbance location. Credit Planetary Skin Institute Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.