From 022b6d1833513cd6b3e7c941c32398af109cd51e Mon Sep 17 00:00:00 2001 From: Denis Rykov Date: Thu, 21 Sep 2023 23:42:57 +0200 Subject: [PATCH] cloud_cover and snow_cover calculation guidelines --- README.md | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/README.md b/README.md index 8a2ce2a..c2b2521 100644 --- a/README.md +++ b/README.md @@ -56,7 +56,7 @@ an Item Properties and referencing these via array index. 1.0.0-beta.1 introduce #### eo:cloud_cover -Estimate of cloud cover as a percentage (0-100) of the entire scene. If not available, the field should not be provided. Generally, +Estimate of cloud cover as a percentage (0-100) of the entire scene. If not available, the field should not be provided. Generally, this value should be used in Item Properties rather than Item Assets, as an Item from an electro-optical source is a single snapshot of the Earth, so the cloud cover value would apply to all assets. @@ -64,7 +64,9 @@ of the Earth, so the cloud cover value would apply to all assets. Estimate of snow and ice covered surfaces as a percentage (0-100) of the entire scene. If not available, the field should not be provided. Generally, this value should be used in Item Properties rather than Item Assets, as an Item from an electro-optical source is a single snapshot -of the Earth, so the snow cover value would apply to all assets. +of the Earth, so the snow cover value would apply to all assets. + +It is important to consider only the valid data regions, excluding any "nodata" areas while calculating both `eo:cloud_cover` and `eo:snow_cover`. ### Band Object