Thermal image/NDVI/Moisture index geotiff has 3 bands

[maoliveira (Maria Alexandra Oliveira)]

Hi there,

I’ve downloaded thermal images from landsat8/9, NDVI, and moisture index from sentinel 2 within an area of interest using The Analytical tab in the image downloader.
I downloaded 32bits geotiff georeferenced images to use in GIS.
The downloaded image for all cases was a georeferenced 3-band geotif.
None of the bands show the temperature values that appear in the browser.
I was expecting a raster with one band and a range of values identical to what is shown on the browser for these products.
Is it possible to download such information using the browser? If so, how?

Thanks in advance

[william.ray]

Hi Maria,

Thanks for the question, in fact EO Browser is primarily designed to be used to visualise data, that is why you will have returned a three band image whose values correspond to the visualisation of the index/thermal band.

However, you can output the analytical data if required. To do this, you will need to select the custom script option and for Band 10 of Landsat 8/9 you could insert the following:

//VERSION=3
function setup() {
  return {
    input: ["B10", "dataMask"],
    output: { bands: 1 }
  };
}

function evaluatePixel(sample) {
  return [sample.B10];
}

You can then download the analytical data that you are looking for