<p>I have collected data (spectral bands) from Landsat 4-5 and Landsat 8. I was calculating NDVI when I noticed that the two Landsats have different band numbers designated as Red and Near Infra Red (needed for NDVI calculation). </p>

<p>When I checked the wavelengths associated with these bands at <a href="http://landsat.usgs.gov/band_designations_landsat_satellites.php" rel="nofollow">Landsat Band Description</a> I noticed that the wavelengths also differ a bit.</p>

<p>For example: I used bands 3 and 4 (Red &amp; Near Infra Red) from Landsat 4-5 and bands 4 and 5 (Red and Near Infra Red) from Landsat 8 for NDVI calculation, but the wavelength range of band 3 in Landsat 4-5 is not exactly the same as of band 4 in Landsat 8. </p>

<p>Is there any way to convert things so that they are same and comparable. I got big variances between NDVI values from the two satellites and have the idea that's because the wavelengths differ.</p>

CC BY-SA 4.0
2019-03-02T05:06:27.253Z
Hi, did you atmospherically correct the bands?
Andrea Massetti
CC BY-SA 4.0
2019-07-17T12:42:48.420Z
No, I didnt perform any corrections
Salman
<measurements><remote-sensing><satellites>
Conversion factor between different Landsats?
Salman
# Conversion factor between different Landsats?

(Asked by: username_0 on 2016-05-31)

I have collected data (spectral bands) from Landsat 4-5 and Landsat 8. I was calculating NDVI when I noticed that the two Landsats have different band numbers designated as Red and Near Infra Red (needed for NDVI calculation).

When I checked the wavelengths associated with these bands at [Landsat Band Description](http://landsat.usgs.gov/band_designations_landsat_satellites.php) I noticed that the wavelengths also differ a bit.

For example: I used bands 3 and 4 (Red & Near Infra Red) from Landsat 4-5 and bands 4 and 5 (Red and Near Infra Red) from Landsat 8 for NDVI calculation, but the wavelength range of band 3 in Landsat 4-5 is not exactly the same as of band 4 in Landsat 8.

Is there any way to convert things so that they are same and comparable. I got big variances between NDVI values from the two satellites and have the idea that's because the wavelengths differ.

**Tags:** measurements, remote-sensing, satellites

> **Comments:**
> **username_1**: Hi, did you atmospherically correct the bands?  
> **username_0**: No, I didnt perform any corrections  

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## 0 answers

