Visualizing satellite tv for pc pictures captured over volcanos and wildfires in numerous spectral bands

1. 🌟 Introduction
2. 🔍 Sentinel-2 (Spectral Bands)
3. 🌐 Downloading Sentinel-2 Photographs
4. ⚙️ Processing Sentinel-2 Photographs (Clipping and Resampling)
5. 🌋 Visualization of Sentinel-2 Photographs (Volcano)
6. 🔥 Visualization of Sentinel-2 Photographs (Wildfire)
7. 📄 Conclusion
8. 📚 References

🌟 Introduction

As chances are you’ll know, our eyes can solely see objects within the seen area (the bands of blue, inexperienced, and pink). Nevertheless, when gentle hits an object and displays, it incorporates data in different spectral areas, akin to infrared. Infrared gentle can successfully penetrate and cross by means of dense gases, akin to smoke, offering a transparent view beneath the smoke. Nevertheless, Our eyes should not in a position to see objects within the infrared area, not like some animals like snakes that may see a portion of infrared of their imaginative and prescient. Over the past a long time, there was important development within the improvement of sensors for detecting infrared gentle. These sensors have been utilized in sensible purposes.

I’ve all the time been in search of a very good instance as an example how satellites can detect essential data within the infrared area, which is invisible to our bare eyes. Final week, I learn concerning the Iceland volcano that had grow to be energetic for the third time since December 2023. It sparked an concept in my thoughts to verify the pictures captured by satellites over the volcano. I hoped to be fortunate sufficient to discover a clear satellite tv for pc picture of the smoke plume from the volcano, demonstrating how gentle scatters within the seen area whereas penetrating by means of the smoke within the infrared area to disclose lava flows.

I checked a few satellites, and guess what? There was one with the right timing! The volcano erupted on Thursday morning (Feb eighth), and the Sentinel-2 overpass occurred on Feb eighth round midday. I assumed this might be an ideal instance to display how…