Abstract:
The data consists of observed terminus position and modelled ocean temperature, air temperature and runoff for 10 tidewater glaciers in east Greenland, 1990-2015. The glaciers are (listed from south to north) Mogens 3, Tingmjarmiut 1, AP Bernstorffs Glacier, Helheim Glacier, Kangerdlugssuaq Glacier, Borggraven, Vestfjord Glacier, Daugaard-Jensen Glacier, Waltershausen Glacier, Heinkel Glacier. Values are given as annual means. Glacier terminus positions are derived directly from remote sensing observations. Ocean temperature is based on the mean 200-400m temperature from GLORYS2V3 1/4 deg ocean reanalysis, obtained from the nearest cell of sufficient depth and adjusted to better agree with available in situ observations. Air temperature is based on the May-September mean of monthly temperatures from European Reanalysis (ERA)-Interim global atmospheric reanalysis, while Q is obtained from a 1-km surface melting, retention, and runoff model forced using ERA-Interim reanalysis. These data were compiled to study the relationship between environmental forcings and tidewater glacier retreat in east Greenland, as published by Cowton et al (2018).
Funding was provided by the NERC grants NE/K015249/1 and NE/K014609/1.
Keywords:
Glaciers, Greenland, Ice sheets
Cowton, T. (2019). Observed terminus position and modelled ocean temperature, air temperature and runoff for 10 tidewater glaciers in east Greenland, 1990-2015 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/4ba115ac-c146-46f5-9fa9-8be795dbb9db
| 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: | 2019-01-16 |
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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 Polar Data Centre |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Tom Cowton |
| Role(s) | Investigator, Technical Contact |
| Organisation | University of St Andrews |
| Name | Andrew Sole |
| Role(s) | Investigator |
| Organisation | University of Sheffield |
| Name | Peter Nienow |
| Role(s) | Investigator |
| Organisation | University of Edinburgh |
| Name | Donald Slater |
| Role(s) | Investigator |
| Organisation | Scripps Institute of Oceanography |
| Name | Poul Christoffersen |
| Role(s) | Investigator |
| Organisation | University of Cambridge |
| Parent Dataset: | N/A |
| Reference: | Cowton, T.R., Sole, A.J., Nienow, P.W., Slater, D.A. and Christoffersen, P., 2018. Linear response of east Greenland's tidewater glaciers to ocean/atmosphere warming. Proceedings of the National Academy of Sciences, 115(31), pp.7907-7912. | |
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| Quality: | The time series contain sections of missing data. The air temperature and runoff time series are limited to the duration (1993-2012) of the surface mass balance modelling undertaken by Wilton et al (2017). The ocean temperature time series is capped by the temporal extent (2014) of the GLORYS2V3 ocean reanalysis product on which it is based. The terminus position time series contain numerous gaps in the 1990s, reflecting years during which no optical satellite observations are available. | |
| Lineage: | The methods are described fully by Cowton et al (2018), and references therein. A summary is provided as a README file. | |
| Temporal Coverage: | |
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| Start Date | 1990-01-01 |
| End Date | 2015-12-31 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | 62.52 |
| Northernmost | 75.16 |
| Longitude | |
| Westernmost | -43.21 |
| Easternmost | -22.46 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Greenland |
| Detailed Location | East Greenland |
| Data Storage: | The data is provided as four csv files, pertaining to the four data sets (terminus position, ocean temperature, air temperature, runoff). Each file contains a table, with the columns containing the time series for the individual glaciers (except column 1, which gives the year of the data value). The glacier names are given in the first row of each table, and use the following abreviations: M3 (Mogens 3), T1 (Tingmjarmiut 1), AB (AP Bernstorffs Glacier), HG (Helheim Glacier), KG (Kangerdlugssuaq Glacier), BG (Borggraven), VG (Vestfjord Glacier), DG (Daugaard-Jensen Glacier), WG (Waltershausen Glacier), HK (Heinkel Glacier). All values are annual means. The units are as follows: Terminus position (km), annual mean Air temperature (degC), May-September mean Runoff (m3s-1), annual mean Ocean temperature (degC), annual mean |
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