NOAA S-57 chart cell
Gulf of Alaska
US4AK5TD
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 117
- S-57 layers
- 21
- Published
- Feb 7, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 59.10000° N
- South
- 58.80000° N
- West
- 138.60000° W
- East
- 138.00000° W
- Center
- 58.95000° N, 138.30000° W
- Bounds area
- 335 sq nm
- Feature density
- 0.3496 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 5.6
- Smallest layer
- 1
- Largest layer
- 23
- Area sq km
- 1,148
- Features per sq km
- 0.10192
- DEPARE Depth area 23
- DEPCNT Depth contour 23
- COALNE Coastline 19
- LNDARE Land area 12
- SBDARE Seabed area 9
- RIVERS River 8
- M_QUAL Data quality 3
- LNDELV 2
- M_NPUB 2
- MAGVAR Magnetic variation 2
- RESARE 2
- SEAARE Sea area 2
- SOUNDG Sounding 2
- ADMARE 1
- CONZNE 1
- EXEZNE 1
- ICEARE 1
- LNDRGN Land region 1
- M_COVR Coverage 1
- M_NSYS 1
Nearby Chart Cells
Approach usage band
Current Edition Files
The NOAA ZIP archive is the upstream source for this chart cell; the other files are Open Ships generated derivatives for web and GIS use.
- Original NOAA ZIP archive https://www.charts.noaa.gov/ENCs/US4AK5TD.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK5TD/1.0/US4AK5TD.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5TD/1.0/US4AK5TD.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5TD/1.0/US4AK5TD.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5TD/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Feb 7, 2024 | metadata.json |