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Isotopic characterisation of nutrient dynamics and Upper Circumpolar Deep Water (UCDW) behaviour in the west Antarctic Peninsula sea ice environment

Data set information

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General  
Data holding centreBritish Oceanographic Data Centre
CountryUnited Kingdom  United Kingdom
Time periodResearch grant active from 15 June 2013 to 14 June 2018
OngoingNo
Geographical area

West Antarctic Peninsula; Southern Ocean

Observations 
Parameters

Alkalinity, acidity and pH of the water column; Sea level; Carbon concentrations in suspended particulate material; Variable fluorescence parameters; Particulate total and organic carbon concentrations in the water column; Dissolved metal concentrations in the water column; Nutrient concentrations in sediment pore waters; Raw oxygen sensor output; Partial pressure (pCO2) and fugacity (fCO2) of carbon dioxide in the water column; Phosphate concentration parameters in the water column; Inorganic chemical composition of sediment or rocks; Total dissolved inorganic carbon (TCO2) concentration in the water column; Stable isotopes in water bodies; Salinity of the water column; Temperature of the water column; Nitrate concentration parameters in the water column; Ammonium and ammonia concentration parameters in water bodies; Silicate concentration parameters in the water column; Chlorophyll pigment concentrations in water bodies; Dissolved oxygen parameters in the water column; Concentration of organic matter in sediments; Visible waveband radiance and irradiance measurements in the water column; Nitrite concentration parameters in the water column; Nitrogen concentrations in suspended particulate material; Density of the water column

Instruments

Fluorometers; ocean colour radiometers; salinity sensor; unconsolidated sediment corers; sediment porewater samplers; inorganic carbon analysers; elemental analysers; gas chromatographs; autoanalysers; titrators; accelerator mass spectrometers; X-ray fluorescence analysers; salinometers; water pressure sensors; nutrient analysers; CTD; water body temperature sensor; dissolved gas sensors

Description 
Summary

This dataset comprises the following water body parameters: pressure; density; salinity; temperature; fluorescence; oxygen; dissolved inorganic nutrients; dissolved inorganic carbon (DIC); particulate carbon (PC); particulate organic carbon (POC); particulate nitrogen (PN); alkalinity; pH; chlorophyll; photosynthetically active radiation (PAR); delta 15 N isotopic composition of PN and nitrate; delta 13 C isotopic composition of POC; delta 18 O isotopic composition of nitrate; ratio of oxygen isotopes. This dataset also includes dissolved inorganic nutrients in sediment pore water, and major and minor element concentrations in sediment. Data were sampled on the West Antarctic Peninsula (WAP), more specifically in Ryder and Marguerite Bays. Measurements were obtained from in situ sensors, samples collected by box coring, or by Niskin bottles mounted on the CTD rosette of RRS James Clark Ross during cruises JR20141231 (JR307, JR308) and JR15003, which took place from 31 December 2014 to 07 January 2015 and from 17 December 2015 to 13 January 2016 respectively. Samples were also collected from Niskin bottles deployed with a hand-cranked winch or 12 V electric bilge pump from a rigid-hulled inflatable boat between 16 November 2013 and 21 March 2016. Sediment samples were analysed for major and minor element composition by X-ray fluorescence spectroscopy at the School of Geosciences, University of Edinburgh. This research project aimed to examine the ways in which ongoing climate change and sea ice decline at the WAP impact upon nutrient budgets and biogeochemical cycling throughout the region, and to trace the movement and modification of circumpolar deep water across the WAP shelf and its influence on macronutrient and inorganic carbon supply to productive coastal regions. Data were generated by Sian Henley (University of Edinburgh), Hugh Venables and Michael Meredith (British Antarctic Survey), Elizabeth Jones (University of Groningen), Katharine Hendry (University of Bristol), and Yvonne Firing (NOC Southampton), with funding from NERC Independent Research Fellowship (NE/K010034/1), the University of Edinburgh School of Geosciences, the British Antarctic Survey Polar Oceans Program, the Netherlands Polar Program (NOW), British Antarctic Survey CGS-109, and NERC NC Funding for SR1b repeat transect (PI Firing). Additional contributors to the dataset were Malcolm Woodward (Plymouth Marine Laboratory), Melanie Leng (British Geological Survey) and Colin Chilcott and Nicholas Odling (University of Edinburgh). All data have been received by BODC to be processed and quality controlled using in-house BODC procedures and made available online.

OriginatorsUniversity of Edinburgh, School of GeoSciences
References

Meredith, M.P., Venables, H.J., Clarke, A., Ducklow, H.W., Erickson, M., Leng, M.J., Lenaerts, J.T.M., van den Broeke, M.R. (2013) The Freshwater System West of the Antarctic Peninsula: spatial and Temporal Changes., American Meteorological Society; Govindaraju, K. (1994) 1994 Compilation of working values and sample description for 383 geostandards., Geostandards and Geoanalytical Research

Data web sitehttps://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/65576513-1638-2c67-e053-6c86abc09597/
Availability 
OrganisationBritish Oceanographic Data Centre
AvailabilityLicence
ContactPolly Hadžiabdić (Head of the BODC Requests Team)
Address

British Oceanographic Data Centre
Joseph Proudman Building 6 Brownlow Street
Liverpool
Merseyside
L3 5DA
United Kingdom

Telephone+44 (0)782 512 0946
Facsimile+44 (0)151 795 4912
Emailenquiries@bodc.ac.uk
Administration 
Collating centreBritish Oceanographic Data Centre
Local identifier1048NE-NE-K010034-1dataset
Global identifier6782
Last revised2023-12-08