Revised depth of the Challenger Deep published
Stewart and Jamieson publish the submersible-transect revision in Deep-Sea Research Part I, together with a general method for deriving precise depths from pressure. It is currently among the best-constrained estimates - and it still does not close the question, because the acoustic and pressure families of measurement have not been reconciled.
Historical — it happened, and the record is settled.
Subjects
- Challenger Deep · site · Western Pacific Ocean - southern Mariana Trench
- Hadal Zone · ocean_zone · Global ocean - subduction trench systems · not located
Evidence
Partly verified — Core facts are sourced; some optional detail is deliberately absent.
Revised depth of the Challenger Deep from submersible transects; including a general method for precise, pressure-derived depths in the ocean
Submersible transects conducted in June 2020 yield a revised Challenger Deep floor depth of 10,935 m (+/- 6 m at 95 percent confidence) below mean sea level. Earlier direct measurements include DEEPSEA CHALLENGER at 10,908 +/- 3 m and its landers at 10,918 +/- 3 m (2012).
Deep-Sea Research Part I (Elsevier), Stewart and Jamieson · 2021 · Partly verified
https://www.sciencedirect.com/science/article/pii/S0967063721001813 (open copy: https://repository.library.noaa.gov/view/noaa/33477/noaa_33477_DS1.pdf)
Recorded on Challenger Deep
- HMS Challenger sounds the deep that will bear her name
- Trieste reaches the bottom of the Challenger Deep
- JAMSTEC's Kaiko reaches the Challenger Deep floor
- Multibeam survey reports a 10,984 m maximum sounding
- First solo crewed dive to the Challenger Deep
- So, How Deep Is the Mariana Trench? asks the question in print
- Five Deeps Expedition dives the Challenger Deep four times
- Submersible pressure transects across the Challenger Deep floor
- Revised depth of the Challenger Deep published
Related
Related because they share a subject in the Atlas — never because the text looks similar.
- Submersible pressure transects across the Challenger Deep floor · 2020-06
- Five Deeps Expedition dives the Challenger Deep four times · 2019-04-28/2019-05-07
- So, How Deep Is the Mariana Trench? asks the question in print · 2014
- First solo crewed dive to the Challenger Deep · 2012
- Multibeam survey reports a 10,984 m maximum sounding · 2010
- JAMSTEC's Kaiko reaches the Challenger Deep floor · 1995
- Trieste reaches the bottom of the Challenger Deep · 1960-01-23
- HMS Challenger sounds the deep that will bear her name · 1875