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Data for: Insights into Water Mass Origins in the Central Arctic Ocean from in-situ Dissolved 3 Organic Matter Fluorescence

posted on 25.06.2021, 12:41 by Colin A Stedmon, Rainer M W Amon, Dorothea Bauch, Astrid Bracher, Rafael Gonçalves-Araujo, Mario Hoppmann, Richard Krishfield, Samuel Laney, Benjamin Rabe, Heather E. Reader, Mats A Granskog

Here we present a merged and calibrated dataset of temperature, practical salinity and dissolved organic matter (DOM) fluorescence obtained from several Ice Tethered Profilers (ITPs) deployed across the central Arctic (2011-2016). The data offer a unique spatial coverage of the distribution of DOM in the surface 800 m below Arctic sea ice. A total of 5044 profiles are gathered. The ITP data are level 3 data products pressure-bin-averaged at 1-db vertical resolution with depth down to either 200 or approximately 750 m. Data (max 800m depth) from CTD casts made during two oceanographic cruises are also included. These were used as part of the calibration and validation of the ITP calibration routines. The cruises were PS94 (ARK-XXIX/3) with POLARSTERN in 2015 and NAACOS with DANA in 2012. The presented DOM fluorescence data are smoothed, corrected for instrument drift and calibrated to provide intercomparable data across the sensors. Fluorescence is reported in Raman Units (nm-1), and comparable to laboratory measurements conducted according to current community recommendations.


Danish Strategic Research Council for the NAACOS project (grant no. 10-093903)

Danish Center for Marine Research (grant no. 2012-01)

Independent Research Fund Denmark Grant No. 9040‐00266B

US NSF, Arctic Natural Science program grant 1504469

European Union's Horizon 2020 research and innovation program Marie Skłodowska‐Curie Grant Agreement No. 839311

Regional Atlantic Circulation and global Change (RACE) grant #03F0824E funded by the German Ministry of Science and Education (BBMF)

Advective Pathways of nutrients and key Ecological substances in the Arctic (APEAR) grants NE/R012865/1,NE/R012865/2 and #03V01461, part of the Changing Arctic Ocean programme, jointly funded by the UKRI Natural Environment Research Council (NERC) and the BMBF

NSF Arctic Observing Network program PLR‐1303644 and OPP‐ 1756100


Related publications (DOI or link to DTU Orbit, DTU Findit)