Hawaii Tide And Current Data Plan

This plan defines future ingestion for Hawaii tide, current, and nearshore water-movement context. Phase 23 starts with static/offline profiles only.

Source candidate	Source format	Historic/current status	Intended adapter use	Later ingestion method	Freshness caveat	Attribution/licensing notes
PacIOOS South Shore Oahu ROMS	model grid / forecast products	current-capable, not live in Phase 23	preferred south-shore Oahu nearshore current baseline	scheduled prefetch or reviewed adapter	must retain model run time and age	verify PacIOOS attribution and redistribution requirements
PacIOOS Oahu ROMS	model grid / forecast products	current-capable, not live in Phase 23	Oahu fallback when south-shore product is unavailable	scheduled prefetch or reviewed adapter	coarser than south-shore product	verify product-specific terms
PacIOOS Main Hawaiian Islands ROMS	model grid / forecast products	current-capable, not live in Phase 23	regional fallback	scheduled prefetch or reviewed adapter	coarse regional context only	verify product-specific terms
NOAA CO-OPS	station observations and predictions	current-capable, not live in Phase 23	supporting tide/current station checks	station adapter with explicit IDs and timestamps	station may not represent reef-channel microconditions	follow NOAA attribution guidance

Ingestion Rules

• Begin with cached/pre-fetched source snapshots, not live scraping.
• Preserve model run time, station timestamp, product name, and source URL.
• Store stale or missing data explicitly.
• Do not treat model baselines as direct beach observations.
• Do not tune scoring around Cromwell's Beach or any single event.

Validation Plan

• Compare static baseline outputs against future source snapshots.
• Maintain Cromwell timeline separation tests.
• Add quiet-day controls for south-shore Oahu.
• Review across a Hawaii replay cohort before calibration changes.