Moderate Resolution Imaging Spectroradiometer (MODIS): A Key Tool for Environmental Monitoring
Introduction to MODIS The Moderate Resolution Imaging Spectroradiometer (MODIS) is an advanced imaging instrument onboard two satellites: Terra Satellite (EOS AM-1): Moves from north to south across the equator in the morning. Aqua Satellite (EOS PM-1): Moves from south to north across the equator in the afternoon. MODIS captures high-resolution images of the entire Earth every 1–2 days using 36 spectral bands , helping scientists study the Earth’s surface, oceans, and atmosphere. Why MODIS is Important for the Environment MODIS plays a vital role in: Monitoring global environmental changes. Providing data for creating accurate Earth system models. Supporting policymakers in making informed decisions to combat climate change and protect ecosystems. Key Insights from MODIS Data 1. Tropical Waters are Changing Color MODIS has revealed a greenish tint in tropical waters, with the southern Indian Ocean showing significant changes. This shift in color is caused by changes in phy