IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Print this page

How and what turbulent are deep Mariana Trench waters?
van Haren, H. (2023). How and what turbulent are deep Mariana Trench waters? Dyn. Atmos. Oceans 103: 101372. https://dx.doi.org/10.1016/j.dynatmoce.2023.101372
In: Dynamics of Atmospheres and Oceans. Elsevier: Amsterdam; New York; Oxford; Tokyo. ISSN 0377-0265; e-ISSN 1872-6879, more
Peer reviewed article  

Available in  Author 

Author keywords
    Challenger Deep; Long-term mooring; Sensitive temperature measurements; Convective turbulent intrusions; Internal wave driven turbulence; Direct bottom-effect of tropical storm

Author  Top 
  • van Haren, H., more

Abstract
    To study potentially turbulent water motions near the deepest point on Earth in the Challenger Deep of the Mariana Trench, a 588-m long string equipped with specially designed sensitive temperature sensors was moored for nearly three years. Detailed analysis of one year of good data distinguishes ubiquitous internal tidal waves and hundreds of meters slanted convection turbulent spurs due to internal waves’ breaking from above. The spurs, or intrusions of anomalous waters, can occur on a tidal periodicity. Some tidal wave breaking including 100-m tall turbulent overturns reaching the trench floor is associated with warm waters that push from above, and of which the largest occurred during the passing of a tropical storm. The various turbulence types prevent the hadal, below 6000 m, waters from being stagnant, which is an important necessity for deep-trench life.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Author