REPRODUCIBLE WORK
Follow the evidence in the order it becomes usable.
Distance screen
Gauge is geographically near
Potential proxyNetwork screen
Check same flow path and intervening tributaries
Not equivalent conditionsDisplay rule
Attach gauge name, time, and distance
Label as nearby observationDecision rule
Use trend cautiously; verify local alerts
No exact reach claimSOURCE SNAPSHOT
Anchor the evidence to its source and time.
INPUT AND EVIDENCE LEDGER
Keep the snapshot attached to its origin.
| Field | Value | Origin |
|---|---|---|
| Fishing reach | No on-site public gauge | Missing direct observation |
| Candidate gauge | 18 km downstream | Illustrative spatial match |
| Network relation | Same named river, tributaries in between | Illustrative network context |
| Observed value | Available at the gauge only | USGS observation |
DECISION READING
What survives the timeline check.
The observation may provide directional context, especially for trend, but it must remain attached to its actual gauge. FINVECTOR should never relabel the measurement as if it came from the fishing reach.
SENSITIVITY
Where the chain can go stale.
- Tributaries, dams, withdrawals, and rain cells can weaken the proxy.
- Older timestamps reduce usefulness even when the gauge is close.
- A matched hydrologic network is stronger evidence than straight-line distance alone.
BOUNDARIES
Do not extend the timestamp into a promise.
- The 18 km scenario is illustrative and not a live water report.
- Gauge observations do not establish safe wading, boating, or access.
- Users should review current agency alerts and local conditions.
HUMAN ACCOUNTABILITY + AI USE RECORD
The owner is accountable; the technical checks were AI-assisted.
The TOOOLBOX site owner authorized the publication scope and remains the correction contact. AI assistance was used for drafting, implementation, arithmetic recomputation, and source-link checks. This record does not claim line-by-line human fact-checking or licensed professional review.
- Record ID
- TB-FINVECTOR-09-20260906
- Owner role
- TOOOLBOX site owner and developer
- Technical check date
- 2026-09-06
- Human fact-check
- No separate human fact-check recorded
- AI use
- Drafting, code, arithmetic, and link checks
- Correction channel
- Public contact page
- Reviewed geographic distance and hydrologic-network relation as separate proxy tests.
- Required the source gauge name, observation time, and distance to remain visible in any display.
- Checked that the illustrative 18 km relationship never becomes an exact reach, access, or safety claim.
MORE FINVECTOR DECISION NOTES
Test the result yourself.
This note preserves a dated calculation. Change the inputs in the live workspace, or compare another evidence pattern below. Live source availability and results can differ from the dated example.