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Landsat 8 has been online for a couple of months now, and the images look incredible. While all of the bands from previous Landsat missions are still incorporated, there are a couple of new ones, such as the coastal blue band water penetration/aerosol detection and the cirrus cloud band for cloud masking and other applications. Here’s a rundown of some common band combinations applied to Landsat 8, displayed as a red, green, blue (RGB):
| Natural Color | 4 3 2 |
| False Color (urban) | 7 6 4 |
| Color Infrared (vegetation) | 5 4 3 |
| Agriculture | 6 5 2 |
| Atmospheric Penetration | 7 6 5 |
| Healthy Vegetation | 5 6 2 |
| Land/Water | 5 6 4 |
| Natural With Atmospheric Removal | 7 5 3 |
| Shortwave Infrared | 7 5 4 |
| Vegetation Analysis | 6 5 4 |
Here’s how the new bands from Landsat 8 line up with Landsat 7:
|
Landsat 7 |
Landsat 8 |
||||
| Band Name | Bandwidth (µm) | Resolution (m) | Band Name | Bandwidth (µm) | Resolution (m) |
| Band 1 Coastal |
0.43 – 0.45 |
30 |
|||
| Band 1 Blue |
0.45 – 0.52 |
30 |
Band 2 Blue |
0.45 – 0.51 |
30 |
| Band 2 Green |
0.52 – 0.60 |
30 |
Band 3 Green |
0.53 – 0.59 |
30 |
| Band 3 Red |
0.63 – 0.69 |
30 |
Band 4 Red |
0.64 – 0.67 |
30 |
| Band 4 NIR |
0.77 – 0.90 |
30 |
Band 5 NIR |
0.85 – 0.88 |
30 |
| Band 5 SWIR 1 |
1.55 – 1.75 |
30 |
Band 6 SWIR 1 |
1.57 – 1.65 |
30 |
| Band 7 SWIR 2 |
2.09 – 2.35 |
30 |
Band 7 SWIR 2 |
2.11 – 2.29 |
30 |
| Band 8 Pan |
0.52 – 0.90 |
15 |
Band 8 Pan |
0.50 – 0.68 |
15 |
| Band 9 Cirrus |
1.36 – 1.38 |
30 |
|||
| Band 6 TIR |
10.40 – 12.50 |
30/60 |
Band 10 TIRS 1 |
10.6 – 11.19 |
100 |
| Band 11 TIRS 2 |
11.5 – 12.51 |
100 |
|||
For the most part, the bands line up with what we’re used to, with some minor tweaking of the spectral ranges. The thermal infrared band from Landsat 7 is now split into two bands for Landsat 8. Whereas before you had one thermal band that was acquired at 60 m resolution (and resampled to 30 m) now you have increased spectral resolution at the cost of spatial resolution. It wouldn’t be remote sensing without tradeoffs, right?
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