每日海域態勢報告Daily Maritime Situation Report

Name: Taiwan Gray Zone Maritime Daily Report Data — 2026-10-21
Published: 2026-10-21
License: https://opensource.org/licenses/MIT

📅 2026-10-21 · 資料更新data updated 2026-10-21T16:34:09Z

今日重點Today at a Glance

4,708

AIS 船舶AIS vessels

15,824

暗船 (SAR)Dark vessels

1,062

可疑船隻Suspicious

305

極高風險Critical

631

緊貼海纜Near cable

173

可疑旁靠Suspicious STS

暗船比對成效Dark-vessel verification

15,824

SAR 暗偵測SAR dark detections

4,798

固定設施剔除Infra filtered

587

本地 AIS 對上Re-matched

10,439

殘餘暗船Residual dark

34.0%

假暗船剔除率False-dark removed

1,031

AIS 覆蓋外Outside coverage

4798

10439

■ 固定設施Infrastructure 4,798 · ■ 本地對上Re-matched 587 · ■ 殘餘暗船Residual 10,439

GFW 判定為「未匹配 AIS」的 15,824 筆 SAR 偵測，先剔除 4,798 筆風機／平台等固定設施，再以港務局本地 AIS（19,470 艘、推算至 Sentinel-1 過境時刻）重新比對，對上 587 筆假暗船（覆蓋範圍內重比對率 5.9%），剩下 10,439 筆為殘餘暗船；其中 1,031 筆落在本地 AIS 保留期之外，無法驗證。Of 15,824 SAR detections GFW flagged as AIS-unmatched, 4,798 were removed as fixed infrastructure (wind farms / platforms), then re-matched against local Port Bureau AIS (19,470 vessels, dead-reckoned to the Sentinel-1 overpass instant): 587 turned out to be false dark ships (5.9% re-match rate within coverage), leaving 10,439 residual dark detections — of which 1,031 fall outside local AIS retention and cannot be verified.

SAR 取證影像SAR chip forensics

最新取證批次 2026-10-21：10 筆 · 累積 583 筆 · 確認率 11.3%Latest run 2026-10-21: 10 targets · 583 cumulative · 11.3% confirmed · ✅ 66 · 🟡 118 · ⚠️ 1 · ⚪ 397 · ❌ 1 · 本輪取證報告Run report

SAR chip 22.43, 119.98 — ✅ 確認實體目標Confirmed target
📅 2026-10-16 · 📍 22.43, 119.98 · 🛰️ 21:52 UTC · territorial_sea
~80.6 m · 15.2× (21 px)

SAR chip 23.02, 118.09 — ✅ 確認實體目標Confirmed target
📅 2026-10-12 · 📍 23.02, 118.09 · 🛰️ 10:16 UTC · eez
~106.3 m · 12.4× (31 px)

SAR chip 23.43, 119.85 — 🟡 弱目標Weak target
📅 2026-10-10 · 📍 23.43, 119.85 · 🛰️ 21:51 UTC · internal_waters
~36.1 m · 3.8× (5 px)

日期Date	座標Position	海域Area	法域Zone	成像時刻Acquired	判定Verdict	估計長度Length	峰值比Peak
2026-10-16	23.89, 121.91	east	contiguous_zone	21:51	⚪ 無目標No target	—	—
2026-10-16	23.11, 119.45	southwest	territorial_sea	21:52	⚪ 無目標No target	—	—
2026-10-16	22.43, 119.98	southwest	territorial_sea	21:52	✅ 確認實體目標Confirmed target	~80.6 m	15.2×
2026-10-12	22.91, 117.1	southwest	eez	10:16	⚪ 無目標No target	—	—
2026-10-12	22.89, 117.5	southwest	eez	10:16	⚪ 無目標No target	—	—
2026-10-12	23.02, 118.09	southwest	eez	10:16	✅ 確認實體目標Confirmed target	~106.3 m	12.4×
2026-10-12	23.24, 118.36	southwest	eez	10:16	⚪ 無目標No target	—	—
2026-10-12	23.19, 118.32	southwest	eez	10:16	⚪ 無目標No target	—	—
2026-10-10	23.43, 119.85	southwest	internal_waters	21:51	🟡 弱目標Weak target	~36.1 m	3.8×
2026-10-10	22.63, 119.79	southwest	territorial_sea	21:51	⚪ 無目標No target	—	—

切片由 Sentinel-1 GRD 影像即時裁切（VV 極化、dB 尺度），判定為自動亮目標偵測結果，長度為粗估。點圖看全解析度原圖。Chips are cut from Sentinel-1 GRD imagery (VV, dB scale); verdicts come from automated bright-target detection and lengths are rough estimates. Click for the full-resolution image.

可疑船隻 Top 5Top 5 Suspicious Vessels

船舶Vessel	類型Type	分數Score	法域Zone	海纜Cable
SHG1500 200000000	cargo	33	internal_waters	—
66829 412466829	unknown	24	eez	within_5km
CHERRY 168 667001298	tanker	23	eez	—
HUA XIN 117 413699010	cargo	22	eez	≤1km
83405 608683405	cargo	22	eez	within_10km

資料來源與限制：AIS 可能因轉發延遲或船舶走暗而不完整；SAR 偵測代表雷達可見目標，不必然代表違法；可疑分數為風險排序，並非法律認定。本報告由公開資料自動產生。 Sources & limits: AIS may be incomplete due to relay delay or vessels going dark; a SAR detection is a radar-visible target, not proof of illegality; the suspicious score is a risk ranking, not a legal finding. This report is auto-generated from public data.

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