Properties of seawater and particulate matter (fluorescence) from a WETLabs Eco-FL sensor mounted on the continuous surface water sampling system during the Tara Oceans expedition 2009-2013


Autoria(s): Tara Oceans Consortium, Coordinators; Tara Oceans Expedition, Participants
Data(s)

23/06/2016

Resumo

The Tara Oceans Expedition (2009-2013) sampled the world oceans on board a 36 m long schooner, collecting environmental data and organisms from viruses to planktonic metazoans for later analyses using modern sequencing and state-of-the-art imaging technologies. Tara Oceans Data are particularly suited to study the genetic, morphological and functional diversity of plankton. The present data set provides continuous measurements made with a WETLabs Eco-FL sensor mounted on the flowthrough system between June 4th, 2011 and March 30th, 2012. Data was recorded approximately every 10s. Two issues affected the data: 1. Periods when the water 0.2µm filtered water were used as blanks and 2. Periods where fluorescence was affected by non-photochemical quenching (NPQ, chlorophyll fluorescence is reduced when cells are exposed to light, e.g. Falkowski and Raven, 1997). Median data and their standard deviation were binned to 5min bins with period of light/dark indicated by an added variable (so that NPQ affected data could be neglected if the user so chooses). Data was first calibrated using HPLC data collected on the Tara (there were 36 data within 30min of each other). Fewer were available when there was no evident NPQ and the resulting scale factor was 0.0106 mg Chl m-3/count. To increase the calibration match-ups we used the AC-S data which provided a robust estimate of Chlorophyll (e.g. Boss et al., 2013). Scale factor computed over a much larger range of values than HPLC was 0.0088 mg Chl m-3/count (compared to 0.0079 mg Chl m-3/count based on manufacturer). In the archived data the fluorometer data is merged with the TSG, raw data is provided as well as manufacturer calibration constants, blank computed from filtered measurements and chlorophyll calibrated using the AC-S. For a full description of the processing of the Eco-FL please see Taillandier, 2015.

Formato

application/zip, 2875.0 kBytes

Identificador

https://doi.pangaea.de/10.1594/PANGAEA.861918

doi:10.1594/PANGAEA.861918

Idioma(s)

en

Publicador

PANGAEA

Relação

Boss, Emmanuel; et al. (2016): Tara Oceans Data: Properties of seawater and particulate matter from physical, optical and imaging sensors mounted on the continuous surface water sampling system. in preparation

Pesant, Stephane; Not, Fabrice; Picheral, Marc; Kandels-Lewis, Stefanie; Le Bescot, Noan; Gorsky, Gabriel; Iudicone, Daniele; Karsenti, Eric; Speich, Sabrina; Troublé, Romain; Dimier, Céline; Searson, Sarah; Acinas, Silvia G; Bork, Peer; Boss, Emmanuel; Bowler, Chris; De Vargas, Colomban; Follows, Michael J; Grimsley, Nigel; Hingamp, Pascal; Jaillon, Olivier; Karp-Boss, Lee; Krzic, Uros; Ogata, Hiroyuki; Raes, Jeroen; Reynaud G., Emmanuel; Sardet, Christian; Sieracki, Michael; Stemmann, Lars; Sullivan, Matthew B; Sunagawa, Shinichi; Velayoudon, Didier; Weissenbach, Jean; Wincker, Patrick (2015): Open science resources for the discovery and analysis of Tara Oceans data. Scientific Data, 2, 150023, doi:10.1038/sdata.2015.23

Falkowski, Paul G; Raven, Robert J (1997): Aquatic photosynthesis. Blackwell Scientific Publishers, 375pp

Falkowski, Paul G; Raven, Robert J (1997): Aquatic photosynthesis. Blackwell Scientific Publishers, 375pp

Direitos

CC-BY: Creative Commons Attribution 3.0 Unported

Access constraints: unrestricted

Palavras-Chave #Tara Oceans Consortium; Tara Oceans Expedition; TOC; TOE-2009-2013
Tipo

Dataset