Longitudinal distribution of salinity, temperature, turbidity and dissolved oxygen of surface waters in the Loire and Gironde estuaries

Key physico-chemical parameters (salinity, temperature, turbidity and dissolved oxygen) were measured in surface water during longitudinal transects in the Loire and Gironde estuaries in summers 2017 and 2018. This objective of this work was to determine the distribution of the dissolved oxygen and to detect potential severe desoxygenation. The transects were scheduled in order to begin the measurements at high tide from a site located upstream of an area where severe deoxygenation have been already been reported. Then, the transect was realised by sailing at low speed downstream with a multiparameter probe SAMBAT, maintained at 0.5 m below the surface, that collected a measurement every 2 minutes.

Simple

Date (Publication)
2019
Date (Revision)
2021-05-12
Other citation details
Sabine Schmidt (2019). Longitudinal distribution of salinity, temperature, turbidity and dissolved oxygen of surface waters in the Loire and Gironde estuaries. SEANOE. https://doi.org/10.17882/60629
Credit
This work has received funding support of the AEAG (Agence de l’Eau Adour Garonne) and the AFB (Agence Française pour la ; Biodiversité).
Author
  UMR5805 EPOC, France - Sabine SCHMIDT
Publisher
  SEANOE
Theme
  • Loire
  • Gironde
  • estuary
  • temperature
  • salinity
  • turbidity
  • dissolved oxygen
  • surface water
  • Chemical oceanography
ODATIS aggregation parameters and Essential Variable names
SeaDataNet Parameter Disciplines
Type de jeux de donnée ODATIS
Use limitation
CC-BY-NC (Creative Commons - Attribution, No commercial usage)
Use constraints
Other restrictions
Metadata language
English
Topic category
  • Oceans
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Begin date
2017-06-21
End date
2018-06-06
Distribution format
  • XLS, XLSX ( )

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Longitudinal transects established in the Gironde estuary in summer 2018 - 48 KB

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Processed data ( WWW:DOWNLOAD-1.0-link--download )

Longitudinal transects established in the Gironde estuary in summer 2018 - 94 KB

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Processed data ( WWW:DOWNLOAD-1.0-link--download )

Longitudinal transects established in the Loire estuary in summer 2018 - 29 KB

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Processed data ( WWW:DOWNLOAD-1.0-link--download )

Longitudinal transects established in the Loire estuary in summer 2018 - 43 KB

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OnLine resource
Seanoe ( rel-canonical )
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Dataset
Statement
The measurements were done using a multiparameter probes, called SAMBAT, developed by NKE Instrumentation (France). The measured parameters are temperature (−-5 to +35°C; ± < 1%), salinity (range 0.1 -42; ± < 5%), turbidity (Turner Designs CYCLOPS-7; 0 - 3000 NTU; ± < 5%), dissolved oxygen (0 - 20 mg L-1;  ±0.1 mg L-1) and fluorescence (Turner Designs CYCLOPS-70 - 50 µg L-1; ± < 5%).
File identifier
seanoe:60629 XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2021-05-12
Metadata standard name
ISO 19115:2003/19139
Metadata standard version
1.0
Point of contact
  UMR5805 EPOC, France - Sabine SCHMIDT
 
 

Overviews

overview
The multiparameter probe SAMBAT fixed on its support

Spatial extent

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Keywords

Chemical oceanography Gironde Loire dissolved oxygen estuary salinity surface water temperature turbidity
ODATIS aggregation parameters and Essential Variable names
Dissolved oxygen Salinity Sea temperature
Type de jeux de donnée ODATIS
/Observational data/in-situ

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