Date (Creation)

2023-01-13

Date (Revision)

2023-01-13

Date (Publication)

2023-01-13

Date (released)

2023-01-13

Edition

1.0

Unique resource identifier

https://doi.org/10.5285/b27e608b-47f6-40bd-8fcf-bd83085c77ca

Codespace

doi

Unique resource identifier

GB/NERC/BAS/PDC/01707

Codespace

https://data.bas.ac.uk/

Unique resource identifier

NE/M020770/1

Codespace

award

Unique resource identifier

NE/M021025/1

Codespace

award

Unique resource identifier

NE/S001670/1

Codespace

award

Other citation details

Please cite this item as: McCutcheon, J., Lutz, S., Cook, J., Tedstone, A., Vanderstraeten, A., Wilson, S., Stockdale, A., Bonneville, S., Anesio, A., Yallop, M., McQuaid, J., Tranter, M., & Benning, L. (2023). Complementary Geochemical, mineralogical and microbiological analyses of materials collected on the Greenland Ice Sheet (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/b27e608b-47f6-40bd-8fcf-bd83085c77ca

Credit

No credit.

Status

Completed

Point of contact

Organisation name	Individual name	Electronic mail address	Role
University of Waterloo	McCutcheon, Jenine		Author
Helmholtz Centre Potsdam - GFZ German Research Centre for Geosciences	Lutz, Stefanie		Author
Aberystwyth University	Cook, Joseph		Author
Staatsarchiv Freiburg	Tedstone, Andrew		Author
Universite Libre de Bruxelles	Vanderstraeten, Aubry		Author
University of Alberta	Wilson, Siobhan		Author
University of Manchester	Stockdale, Anthony		Author
Universite Libre de Bruxelles	Bonneville, Steeve		Author
Aarhus University	Anesio, Alexandre		Author
University of Bristol	Yallop, Marian		Author
University of Leeds	McQuaid, Jim		Author
University of Bristol	Tranter, Martyn		Author
Helmholtz Centre Potsdam - GFZ German Research Centre for Geosciences	Benning, Liane G.		Author
NERC EDS UK Polar Data Centre		PDCServiceDesk@bas.ac.uk	Point of contact

Maintenance and update frequency

As needed

Maintenance note

Completed

Global Change Master Directory (GCMD) Science Keywords

• EARTH SCIENCE > Land Surface > Soils > Microfauna

Theme

• Greenland Ice Sheet

• albedo

• glacier algae

• minerals

• phosphorus

Place

• 33 - 130 km inland from ice sheet margin, east of Kangerlussuaq, Greenland Greenland

GEMET - INSPIRE themes, version 1.0

• Land cover

Access constraints

Other restrictions

Other constraints

no limitations to public access

Access constraints

Other restrictions

Other constraints

no limitations

Use constraints

License

Other constraints

Open Government Licence v3.0

Use constraints

Other restrictions

Other constraints

This data is governed by the NERC Data Policy: https://www.ukri.org/who-we-are/nerc/our-policies-and-standards/nerc-data-policy/

Use constraints

Other restrictions

Other constraints

This data is governed by the NERC data policy and supplied under Open Government Licence v.3

Use constraints

Other restrictions

Other constraints

No restrictions apply.

Unique resource identifier

url

Codespace

url

Association Type

Cross reference

Unique resource identifier

url

Codespace

url

Association Type

Larger work citation

Spatial representation type

Text, table

Language

English

Character set

UTF8

Topic category

• Geoscientific information

Begin date

2016-07-27

End date

2016-08-17

Supplemental Information

It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk.

Title

European Petroleum Survey Group (EPSG) Geodetic Parameter Registry

Date (Publication)

2008-11-12

Cited responsible party

Organisation name	Individual name	Electronic mail address	Role
European Petroleum Survey Group		EPSGadministrator@iogp.org	Publisher

Unique resource identifier

urn:ogc:def:crs:EPSG::3031

Version

6.18.3

Hierarchy level

Dataset

Statement

Methodology:

Surface snow and ice samples were collected along a transect across the ablation zone of the southwestern margin of the Greenland Ice Sheet during the 2016 (July 27-August 17) and 2017 (June 1-28) melt seasons. Targeted surface habitats included clean ice (CI; free of macroscopically visible LAP), high algal biomass (Hbio) ice, Hbio snow, dispersed cryoconite (DCC) ice, cryoconite holes (CCH), a floating biofilm, and supraglacial stream water. The collected samples were classed into the following categories based on macroscopically visible characteristics: clean snow (n = 1), clean surface ice (CI, n = 4), high algal biomass ice (Hbio; n =19), high algal biomass snow (n = 2), and dispersed cryoconite ice (DCC; n = 5). In addition, supraglacial stream water (n = 2), a sample of cryoconite hole (CCH) material (n = 1), a cryoconite hole layer from an ice core (n = 1), and a floating algal biofilm (n = 1) were collected. Ice and snow samples were collected from the top 3-5 cm of surface into sterile plastic bags, melted at ambient temperatures (5-10 degrees Celsius). Aliquots of filtered melted samples were processed as described below for fluid chemistry analyses. While on the ice, melted samples were filtered through glass fiber filters (GFF, pore size: 0.7 micrometer), from which the accumulated LAP were removed using a stainless steel spatula. The collected solid LAP were air-dried and stored in glass vials.

Three rock samples representing lithologies in the catchment area draining the west Greenland Ice Sheet were collected from outcrops near the terminus of Russell Glacier.

The phosphorus content of the Hbio ice, DCC ice, Hbio snow, and CCH samples was determined using a modified version of the SEDEX sequential extraction protocol20. Steps I, III, IV, and V were completed as a means of quantifying loosely bound/exchangeable P (Pexch), mineral P (Pmin), and organic P (Porg). The extracted P was measured in the fluid phase as described below for the melted ice samples.

Melted surface samples and supraglacial stream water samples were filtered using 0.22 micrometer single use syringe filters into acid-washed Nalgene bottles. Inductively-coupled plasma mass spectroscopy (ICP-MS; Thermo Fisher iCAPQc) was used to measure fluid phase cations in the filtered water samples that were acidified using Aristar HNO3. ICP-MS was conducted by Stephen Reid at the University of Leeds, UK. Phosphorus was either measured using segmented flow-injection analysis (AutoAnalyser3, Seal Analytical), or for samples containing lower concentration of phosphorus using a 100 cm WPI Liquid Waveguide Capillary Cell in conjunction with an Ocean Optics USB2000+ spectrophotometer with a precision of 1.6 percentage and a LOD of 2 nmolL^-1. Aliquots of the non-acidified 0.22 micrometer filtered samples were also analyzed in replicates by ion chromatography by Andrea Viet-Hillebrand at the German Research Centre for Geosciences, Potsdam, Germany. Analyses were carried out with a conductivity detector on a Dionex ICS 3000 system, equipped with an AS 11 HC Dionex analytical column run at 35 degrees Celsius for chromatographic separation of the anions.

Aliquots from the 0.7 micrometer GFF filtered, dried and hand-milled samples were analyzed for their bulk total and organic carbon (TC and TOC) and total nitrogen (TN) content. This was done for the Hbio ice, DCC ice, Hbio snow, and cryoconite hole material using an elemental analyzer (NC2500 Carlo Erba, standard deviation less than 0.2 percent, precision 0.1 percent) and with the TOC concentrations subsequently measured following an in situ decalcification step. Note, the organic carbon fraction includes a contribution from black carbon. TC/TN analyses were conducted by Birgit Plessen and Sylvia Pinkerneil at the German Research Centre for Geosciences, Potsdam, Germany.

The mineralogy of the dust was determined...(78)

Data collection:

Scanning electron microscopy data was collected by J. McCutcheon using a Hitatchi 8230 SEM at the Leeds Electron Microscopy and Spectroscopy Centre (LEMAS), University of Leeds, UK. X-ray diffraction was conducted by J. McCutcheon using a Bruker D8 Advance Eco X-ray diffractometer (Bruker, Billerica, USA) with a Cu source at the University of Leeds, UK. ICP-MS was conducted by S. Reid using a Thermo Fisher iCAPQc ICP-MS at the University of Leeds, UK. Phosphorus was measured either using segmented flow-injection analysis (AutoAnalyser3, Seal Analytical), or for samples containing lower concentrations of phosphorus by A. Stockdale, using a 100 cm WPI Liquid Waveguide Capillary Cell in conjunction with an Ocean Optics USB2000+ spectrophotometer. Both analyses were conducted at the University of Leeds, UK. Ion chromatography was conducted by A. Viet-Hillebrand at the German Research Centre for Geosciences, Potsdam, Germany using a conductivity detector on a Dionex ICS 3000 system, equipped with an AS 11 HC Dionex analytical column. Carbon and nitrogen analysis was conducted by B. Plessen and S. Pinkerneil at German Research Centre for Geosciences, Potsdam, Germany using an NC2500 Carlo Erba elemental analyser. Amplicon libraries were sequenced on the Illumina MiSeq using paired 300-bp reads at the University of Bristol Genomics Facility, Bristol, UK. Rare Earth element concentrations were measured by A. Vanderstraeten using HR-ICP-MS (ThermoFisher Element 2) at the Vrije Universiteit Brussel, Belgium. Particle size distribution was measured by K. Jurkschat using a DC24000 CPS disc centrifuge at Oxford Materials Characterisation Services, Oxford, UK.

Data quality:

No data were excluded from the study. Reproducibility in the data was verified by collecting and analysing as many samples as was possible given the time and space constraints of remote fieldwork. This study characterized heterogeneous naturally occurring samples and therefore randomisation was not required.

Metadata

File identifier

b27e608b-47f6-40bd-8fcf-bd83085c77ca XML

Metadata language

English

Character set

UTF8

Hierarchy level

Dataset

Hierarchy level name

dataset

Date stamp

2023-01-13

Metadata standard name

ISO 19115 Geographic Information - Metadata

Metadata standard version

ISO 19115:2003(E)

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC EDS UK Polar Data Centre		polardatacentre@bas.ac.uk	Point of contact