Nature · Brownson Deep section · North Atlantic · 2018 grid
Puerto Rico Trench: depth and source profile
This surveyed section of Puerto Rico Trench reaches approximately 8,385 meters below the EGM96 geoid.
≈ 8,385 m
Data-derived estimate- Measurement
- Depth below EGM96 geoid · 75-meter survey grid
- Subject or version
- Brownson Deep section · North Atlantic · 2018 grid
- In feet, rounded
- 27,509.3 ft (1 ft = 0.3048 m)
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A little more perspective
401 unchanged 75-meter raster cell centers along a 30-kilometer section. Depth is negative raster elevation. No interpolation, missing-cell filling, datum transformation or vertical exaggeration. Straight segments connect measured cells; they are not additional soundings. The section reaches 8384.8486328125 meters at 19.701205°, -67.226266°. Stored decimals preserve the raster value, not centimeter accuracy. Both ends remain underwater.
The Five Deeps study reports 8,378 ± 5 meters at Brownson Deep, with a separate submersible result of 8,376 ± 5 meters. The published analysis and this archived grid are separate results. Neither the profile nor its vertical datum has been adjusted to force agreement. The acquisition report identifies EGM96 as its geoid reference.
The section crosses the Brownson Deep area north of Puerto Rico. Its center was selected within a bounded window around the published site. An isolated deeper cell at the distant edge of the archived grid was excluded; the value here is the deepest sample on this section, not a claim of a new Atlantic record.
Quick facts
This surveyed section of Puerto Rico Trench reaches approximately 8,385 meters below the EGM96 geoid.
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Sources and measurement notes
- NOAA NCEI: PD18PR04 survey archive
- Caladan Oceanic: acquisition report, geoid reference in section C.3
- Bongiovanni, Stewart and Jamieson (2021): Five Deeps bathymetry study
Compare measured sections with their source and datum intact; do not treat grid precision as survey accuracy.
Source review recorded . Suggest a correction with a source and the exact measurement being compared.