- What this is not
- A tempo gauge against its own trailing-year norm, not an invasion probability.
- Taiwan's own daily disclosure
- Taiwan's own daily disclosure, covering 06:00 to 06:00 Taipei time, so the latest row is yesterday's window and never real time. Counts are what Taiwan detected AND chose to publish, which makes them a lower bound. Coast-guard and other government ships and balloons are printed only when nonzero, so their absence means zero, not unknown. Reused under the Taiwan Open Government Data License v1.
- The daily history behind the reading
- The daily history behind the reading, transcribed from the same ministry reports Oxon reads directly. It is the only machine-readable bridge across the ministry's image-only period (roughly January 2024 to February 2025), when the reports carried no parseable text. Day-level aggregates only, cited on every surface; the authors' per-airframe detail is deliberately not used. The maintainers file in batches, so this series is usually a few days behind the ministry's own.
- Japan's reporting of naval movements
- Japan's own reporting of Chinese naval and air movements around the first island chain, read through the Internet Archive because the ministry's site refuses datacenter requests. That relay adds a day or so of lag, shown above. Classified from the release titles, which state the class, the count, the strait and the direction. Shown for context.
- Strait shipping
- Vessels transiting the Taiwan Strait each day, estimated from satellite vessel tracking, published about three days in arrears. It answers the question no other public strait tracker answers: is the shipping lane reacting? Shown for context. Attribution: Kpler; UN Global Platform; IMF PortWatch.
