nieuwe zoekopdracht
[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina

Further correcting pressure effects on SBE911 CTD-conductivity data from hadal depths
van Haren, H.; Uchida, H.; Yanagimoto, D. (2020). Further correcting pressure effects on SBE911 CTD-conductivity data from hadal depths. J. Oceanogr. early view. https://doi.org/10.1007/s10872-020-00565-3
In: Journal of Oceanography. Springer: Tokyo; London; Dordrecht; Boston. ISSN 0916-8370; e-ISSN 1573-868X, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

Author keywords
    Challenger deep; Mariana trench; improved pressure correction of conductivity profile data; turbulence parameter estimates

Auteurs  Top 
  • van Haren, H., meer
  • Uchida, H.
  • Yanagimoto, D.

Abstract
    Hadal, > 6000 m deep shipborne Sea-Bird Electronics SBE 911plus Conductivity Temperature Depth (CTD) data are obtained using two different systems in the vicinity of the Earth’s deepest point, in the Challenger Deep, Mariana Trench 14 years apart. Below 7000 m in very weakly density stratified waters, the salinity data from both sets show an artificialincrease with depth of about 10–6 g kg−1 m −1 that is not covered by the SBE linear pressure correction to the conductivity data. With the aid of independent water sample data, salinity is corrected and an additional algorithm for the pressure correction on conductivity data is formulated. The corrected salinity data still weakly increase with depth, together with a decrease in temperature, which may point at an influx of dense modified Antarctic bottom water. The corrected density variations with depth are used in calculations of deep turbulence values.

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs 
IMIS is ontwikkeld en wordt gehost door het VLIZ, voor meer informatie contacteer .