diff --git a/docs/tech-alerts-changelog/_tech_alerts_changelog.md b/docs/tech-alerts-changelog/_tech_alerts_changelog.md index f4ff3f885..03603cef7 100644 --- a/docs/tech-alerts-changelog/_tech_alerts_changelog.md +++ b/docs/tech-alerts-changelog/_tech_alerts_changelog.md @@ -22,17 +22,17 @@ Learn more about the [DEA Summary Product Grid](/guides/reference/collection_3_summary_grid/). -## 26 Sep 2024: `s2cloudless` ARD reprocessing underway +## 26 Sep 2024: 's2cloudless' ARD reprocessing underway We have begun reprocessing the older Sentinel-2 ARD data that was [impacted by a bug](#may-2024-misclassification-issue-with-sentinel-2-s2cloudless-cloud-masking-from-2022) in the s2cloudless cloud masking layer. The addition of an offset factor in ESA's Sentinel-2 L1C Processing Baseline 4.0.0 [on January 25 2022](https://sentiwiki.copernicus.eu/web/s2-processing) led to the generation of incorrect `s2cloudless` cloud -classifications in our systems. This resulted in an over classification of cloud, particularly over bare and +classifications in our systems. This resulted in an over-classification of cloud, particularly over bare and agricultural regions -Sentinel-2 `s2cloudless` data from January 25 2022 to June 7 2024 is affected, and we expect to replace these datasets +Sentinel-2 `s2cloudless` data from 25 January 2022 to 7 June 2024 is affected, and we expect to replace these datasets over the next several months. In the meantime, we advise the users to avoid using `s2cloudless` for cloud masking on data between these two dates,