---
id: golden_tide
type: element
name: Golden tide / Sargassum
task_types: [semantic_segmentation, polygon_extraction]
preferred_heads: [validity, context, semantic_segmentation]
label_formats: [mask, polygon]
positive_label: golden_tide
negative_policy: unlabeled_is_ignore
typical_sensors: [PMS, MUX, MSS, MSI]
typical_resolutions_m: [2, 10]
---

# Golden Tide / Sargassum

Golden tide is a floating vegetation-like target. It shares confusion sources
with green tide but may have different color, texture, and morphology.

## Required Context

- Treat unlabeled ecological elements as ignore, not as negatives.
- Keep original scale metadata because raft-like texture and floating patches
  change strongly with resolution.