Abstract:
This dataset consists of 75 destructive ice surface samples for which glacier algae cell counts were undertaken. The sample locations were distributed randomly over a 250 X 250 m area.
Funding was provided by the NERC standard grant NE/M021025/1.
Keywords:
albedo, glacier algae, ice
Williamson, C., Tedstone, A., & Cook, J. (2020). Glacier algae cell counts from UPE_U, north-west Greenland, 26 July 2018 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/ab953cb8-8675-4a85-b561-add6ceba015f
| Access Constraints: | No restrictions apply. |
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| Use Constraints: | This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. |
| Creation Date: | 2020-01-07 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | UK PDC |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Andrew Tedstone |
| Role(s) | Investigator, Technical Contact |
| Organisation | University of Bristol |
| Name | Joseph Cook |
| Role(s) | Investigator |
| Organisation | University of Sheffield |
| Name | Martyn Tranter |
| Role(s) | Investigator |
| Organisation | University of Bristol |
| Name | Christopher J Williamson |
| Role(s) | Investigator |
| Organisation | University of Bristol |
| Parent Dataset: | N/A |
| Reference: | Cook et al. (accepted) Glacier algae accelerate melt rates on the western Greenland Ice Sheet, The Cryosphere Tedstone et al. (accepted) Algal growth and weathering crust state drive variability in Greenland Ice Sheet ice albedo, The Cryosphere |
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| Quality: | Good. | |
| Lineage: | On 26 July 2018 we cast a random 75-point sampling grid over our UAS flight area defined in "Multi-spectral unmanned aerial system imagery, UPE_U, north-west Greenland, July 2018: Levels 2 (ground reflectance) and 3 (broadband albedo and surface type classification)" (DOI: 10.5285/2dd66461-94af-458f-a9d2-c24bb0bd0322). We used a trowel to scrape the snow away to reveal the bare ice surface beneath for sampling. Samples were made by cutting a 30 X 30 X 2 cm volume out using a metal ice saw and trowel and transferring into a sterile Whirl-Pak bag which was immediately placed in the dark to melt over a 24 hour period at ambient air temperature. Following melting, samples were homogenised, sub-sampled into Falcon tubes and fixed with 2% final concentration gluteraldehyde. Samples were then returned to laboratories at the Universities of Sheffield and Bristol for counting by microscopic haeomcyometry. Full details of the enumeration protocols used are in Williamson et al. (2018, FEMS Microbiology). |
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| Temporal Coverage: | |
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| Start Date | 2018-07-26 |
| End Date | 2018-07-26 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | 72.88 |
| Northernmost | 72.88 |
| Longitude | |
| Westernmost | -53.56 |
| Easternmost | -53.55 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Greenland |
| Detailed Location | UPE_U, north-west Greenland Ice Sheet |
| Data Collection: |
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| Data Storage: | The data is stored as 1 csv file. |
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