Band combinations are a useful tool for processing satellite images and extracting valuable information from them. In this regard, both Landsat 8 and Sentinel-2 offer multiple options for band combination for different types of analyses. In this table, we present some common band combinations for Landsat 8 and Sentinel-2, organized by type of analysis.
| Tipo de análisis | Landsat 8 Band Combinations | Sentinel-2 Band Combinations |
|---|---|---|
| Natural Color (RGB) | 4, 3, 2 | 4, 3, 2 |
| Vegetation | 5, 4, 3 | 8, 4, 3 |
| Water | 4, 5, 3 | 2, 4, 3 |
| False Color (Urban) | 7, 6, 4 | 12, 11, 4 |
| Near Infrared | 5, 4, 7 | 8, 4, 12 |
Differences between landsat 8 and sentinel 2 satellite images
Landsat 8 and Sentinel-2 are two of the most commonly used satellite systems for Earth observation, and they have some differences in terms of their technical specifications and the types of data they provide. Here are some of the main differences between Landsat 8 and Sentinel-2:
- Spatial resolution: Landsat 8 has a higher spatial resolution (15-30 meters) than Sentinel-2 (10-60 meters), which means that Landsat 8 is better suited for detailed analysis of smaller areas.
- Spectral resolution: Sentinel-2 has a wider spectral range (13 bands) than Landsat 8 (11 bands), which means that Sentinel-2 can capture more specific information about the Earth’s surface, including the ability to distinguish between different types of vegetation and water.
- Revisit time: Sentinel-2 has a shorter revisit time (5 days) than Landsat 8 (16 days), which means that Sentinel-2 can provide more frequent updates on changes to the Earth’s surface.
- Data availability: Landsat 8 data is freely available from the USGS, while Sentinel-2 data is freely available from the European Space Agency.
- Data format: Landsat 8 data is provided in a Level-1 product, which contains radiometrically calibrated and orthorectified data, while Sentinel-2 data is provided in a Level-1C product, which contains orthorectified data with a top-of-atmosphere reflectance correction.
In summary, both Landsat 8 and Sentinel-2 provide valuable information for Earth observation, but their technical specifications and data products have some differences that can make one system more suitable than the other depending on the specific needs of the analysis.
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