From f9df2075c27a753b7276c79f1be89ddfd8f2a3b6 Mon Sep 17 00:00:00 2001 From: Google Earth Engine Community Authors Date: Mon, 27 Nov 2023 13:32:11 -0800 Subject: [PATCH] Adds Cloud Score+ to the Sentinel-2 derived datasets page. PiperOrigin-RevId: 585745564 --- ..._CLOUD_SCORE_PLUS_V1_S2_HARMONIZED.jsonnet | 21 +++++++------------ 1 file changed, 8 insertions(+), 13 deletions(-) diff --git a/catalog/GOOGLE/GOOGLE_CLOUD_SCORE_PLUS_V1_S2_HARMONIZED.jsonnet b/catalog/GOOGLE/GOOGLE_CLOUD_SCORE_PLUS_V1_S2_HARMONIZED.jsonnet index 11801099a..54d11fec1 100644 --- a/catalog/GOOGLE/GOOGLE_CLOUD_SCORE_PLUS_V1_S2_HARMONIZED.jsonnet +++ b/catalog/GOOGLE/GOOGLE_CLOUD_SCORE_PLUS_V1_S2_HARMONIZED.jsonnet @@ -22,16 +22,11 @@ local self_ee_catalog_url = ee_const.ee_catalog_url + basename; Cloud Score+ is a quality assessment (QA) processor for medium-to-high resolution optical satellite imagery. The Cloud Score+ S2_HARMONIZED dataset is being operationally produced from the - [harmonized Sentinel-2 L1C collection](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_S2_HARMONIZED). - - Cloud Score+ outputs do not explicitly provide labels, e.g., "cloud" and - "cloud shadow". Instead, QA artifacts are defined on a continuous scale - based on ground occlusion with respect to solar radiation or the imaging - sensor: if a ray incident to or reflected from a ground pixel is absorbed - or reflected by the atmosphere, the QA score is lower. Functionally, Cloud - Score+ provides a holistic per-pixel "usability" score that can be - thresholded to mask or even weight observations used for downstream tasks - such as time series analysis or classification. + [harmonized Sentinel-2 L1C collection](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_S2_HARMONIZED), + and Cloud Score+ outputs can be used to identify relatively clear pixels and + effectively remove clouds and cloud shadows from [L1C (Top-of-Atmosphere)](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_S2_HARMONIZED) + or [L2A (Surface Reflectance)](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_S2_SR_HARMONIZED) + imagery. The Cloud Score+ S2_HARMONIZED dataset includes two QA bands, `cs` and `cs_cdf`, that both grade the usability of individual pixels with respect to @@ -48,9 +43,9 @@ local self_ee_catalog_url = ee_const.ee_catalog_url + basename; pixel through time, how would this score rank?). Images in the Cloud Score+ S2_HARMONIZED collection have the same id and - `system:index` properties as the individual Sentinel-2 L1C assets from which - they were produced such that Cloud Score+ bands can be linked to source - images based on their shared `system:index`. + `system:index` properties as the individual [Sentinel-2 L1C](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_S2_HARMONIZED) + assets from which they were produced such that Cloud Score+ bands can be + linked to source images based on their shared `system:index`. Cloud Score+ backfill for the entire Sentinel-2 archive is currently in progress and Dataset Availability dates will be updated periodically as new