From b63b6897f388dd2d7cc0fec9835611a634247e6a Mon Sep 17 00:00:00 2001 From: heyarne Date: Sat, 13 Mar 2021 16:47:02 +0100 Subject: [PATCH] Better explanation for raster files --- sources/01b-visualization.ipynb | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/sources/01b-visualization.ipynb b/sources/01b-visualization.ipynb index 778c000..8da4fc2 100644 --- a/sources/01b-visualization.ipynb +++ b/sources/01b-visualization.ipynb @@ -108,7 +108,10 @@ "source": [ "## Previewing Downloaded Files\n", "\n", - "There is a function that, given a resolution and the band name, returns the correct file paths to use with the `rasterio` library.\n", + "The largest share of the product size is made up by `*.jp2` files, which are raster images which contain geocoded spectral band information at a fixed resolution.\n", + "Data on each spectral band captured by the Sentinel-2 mission is distributed on a per-file basis, which is why most of these files contain data on a single channel only.\n", + "An exception is the included True-Color Image, which contains data in red, green and blue channels.\n", + "There is a function that, given a resolution and one or more spectral band name, returns the correct file paths.\n", "It contains code to deal with compressed or uncompressed products." ] },