每日海域態勢報告Daily Maritime Situation Report

Name: Taiwan Gray Zone Maritime Daily Report Data — 2026-09-20
Published: 2026-09-20
License: https://opensource.org/licenses/MIT

📅 2026-09-20 · 資料更新data updated 2026-09-20T15:24:48Z

今日重點Today at a Glance

7,694

AIS 船舶AIS vessels

16,147

暗船 (SAR)Dark vessels

1,623

可疑船隻Suspicious

680

極高風險Critical

614

緊貼海纜Near cable

276

可疑旁靠Suspicious STS

暗船比對成效Dark-vessel verification

16,147

SAR 暗偵測SAR dark detections

2,403

固定設施剔除Infra filtered

825

本地 AIS 對上Re-matched

12,919

殘餘暗船Residual dark

20.0%

假暗船剔除率False-dark removed

AIS 覆蓋外Outside coverage

2403

12919

■ 固定設施Infrastructure 2,403 · ■ 本地對上Re-matched 825 · ■ 殘餘暗船Residual 12,919

GFW 判定為「未匹配 AIS」的 16,147 筆 SAR 偵測，先剔除 2,403 筆風機／平台等固定設施，再以港務局本地 AIS（21,351 艘、推算至 Sentinel-1 過境時刻）重新比對，對上 825 筆假暗船（覆蓋範圍內重比對率 6.0%），剩下 12,919 筆為殘餘暗船；其中 0 筆落在本地 AIS 保留期之外，無法驗證。Of 16,147 SAR detections GFW flagged as AIS-unmatched, 2,403 were removed as fixed infrastructure (wind farms / platforms), then re-matched against local Port Bureau AIS (21,351 vessels, dead-reckoned to the Sentinel-1 overpass instant): 825 turned out to be false dark ships (6.0% re-match rate within coverage), leaving 12,919 residual dark detections — of which 0 fall outside local AIS retention and cannot be verified.

SAR 取證影像SAR chip forensics

最新取證批次 2026-09-19：27 筆 · 累積 254 筆 · 確認率 9.8%Latest run 2026-09-19: 27 targets · 254 cumulative · 9.8% confirmed · ✅ 25 · 🟡 53 · ⚠️ 1 · ⚪ 175 · 本輪取證報告Run report

SAR chip 22.56, 120.23 — ✅ 確認實體目標Confirmed target
📅 2026-09-16 · 📍 22.56, 120.23 · 🛰️ 21:51 UTC · internal_waters
~358.5 m · 100.4× (252 px)

SAR chip 23.41, 119.89 — ✅ 確認實體目標Confirmed target
📅 2026-09-16 · 📍 23.41, 119.89 · 🛰️ 21:51 UTC · internal_waters
~538.5 m · 69.0× (321 px)

SAR chip 22.19, 120.32 — ✅ 確認實體目標Confirmed target
📅 2026-09-16 · 📍 22.19, 120.32 · 🛰️ 21:52 UTC · territorial_sea
~391.2 m · 54.8× (304 px)

SAR chip 22.55, 119.98 — ✅ 確認實體目標Confirmed target
📅 2026-09-16 · 📍 22.55, 119.98 · 🛰️ 21:51 UTC · territorial_sea
~211.0 m · 32.4× (127 px)

SAR chip 22.63, 119.9 — ✅ 確認實體目標Confirmed target
📅 2026-09-16 · 📍 22.63, 119.9 · 🛰️ 21:51 UTC · territorial_sea
~172.0 m · 31.6× (71 px)

SAR chip 23.21, 118.33 — 🟡 弱目標Weak target
📅 2026-09-06 · 📍 23.21, 118.33 · 🛰️ 10:16 UTC · eez
~78.1 m · 9.7× (21 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
2026-09-16	22.63, 119.9	southwest	territorial_sea	21:51	✅ 確認實體目標Confirmed target	~172.0 m	31.6×
2026-09-16	22.76, 120.02	southwest	internal_waters	21:51	🟡 弱目標Weak target	~588.7 m	7.9×
2026-09-16	23.47, 119.91	southwest	internal_waters	21:51	⚪ 無目標No target	—	—
2026-09-16	22.71, 120.15	southwest	internal_waters	21:51	⚪ 無目標No target	—	—
2026-09-16	22.56, 120.23	southwest	internal_waters	21:51	✅ 確認實體目標Confirmed target	~358.5 m	100.4×
2026-09-16	22.55, 119.98	southwest	territorial_sea	21:51	✅ 確認實體目標Confirmed target	~211.0 m	32.4×
2026-09-16	23.41, 119.89	southwest	internal_waters	21:51	✅ 確認實體目標Confirmed target	~538.5 m	69.0×
2026-09-16	22.68, 120.18	southwest	internal_waters	21:51	⚪ 無目標No target	—	—
2026-09-16	23.12, 119.97	southwest	internal_waters	21:51	🟡 弱目標Weak target	~42.4 m	4.1×
2026-09-16	22.78, 120.11	southwest	internal_waters	21:51	⚪ 無目標No target	—	—
2026-09-16	22.46, 120.26	southwest	internal_waters	21:51	⚪ 無目標No target	—	—
2026-09-16	22.19, 120.32	southwest	territorial_sea	21:52	✅ 確認實體目標Confirmed target	~391.2 m	54.8×
2026-09-16	24.79, 121.88	east	internal_waters	21:51	⚪ 無目標No target	—	—
2026-09-16	22.52, 119.35	southwest	eez	21:52	⚪ 無目標No target	—	—
2026-09-16	22.78, 120.14	southwest	internal_waters	21:51	⚪ 無目標No target	—	—
2026-09-16	25.26, 121.7	east	internal_waters	21:51	🟡 弱目標Weak target	~127.3 m	9.5×
2026-09-08	23.66, 121.58	east	territorial_sea	10:00	🟡 弱目標Weak target	~22.4 m	3.3×
2026-09-06	23.21, 118.33	southwest	eez	10:16	🟡 弱目標Weak target	~78.1 m	9.7×
2026-09-04	22.21, 121.68	east	territorial_sea	21:51	⚪ 無目標No target	—	—
2026-09-04	25.18, 121.81	east	internal_waters	21:51	⚪ 無目標No target	—	—
2026-08-28	25.37, 123.14	east	eez	09:52	⚪ 無目標No target	—	—
2026-08-27	24.54, 121.99	east	territorial_sea	10:00	⚪ 無目標No target	—	—
2026-08-25	23.32, 117.19	southwest	eez	10:16	🟡 弱目標Weak target	~80.6 m	5.4×
2026-08-25	23.5, 117.77	southwest	eez	10:16	⚪ 無目標No target	—	—
2026-08-23	22.48, 121.72	east	territorial_sea	21:51	🟡 弱目標Weak target	~67.1 m	4.7×
2026-08-23	23.21, 121.67	east	territorial_sea	21:51	⚪ 無目標No target	—	—
2026-08-21	22.93, 122.43	east	eez	09:59	⚪ 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
SAFCO 457119000	cargo	28	internal_waters	—
YING HAI 59 412522610	cargo	28	contiguous_zone	—
HUI DE 413332760	cargo	28	territorial_sea	≤1km
DIANA 667001430	tanker	27	internal_waters	—
CHERRY 168 667001298	tanker	27	contiguous_zone	—

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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