BGS Hosted Metadata
MetUM high-resolution simulations of extreme warm temperature events over South Orkney Islands from 1 to 17 January 1991
High-resolution simulations of extreme warm temperature events over South Georgia Islands using the UK Met Office Unified Model (MetUM) were conducted at the British Antarctic Survey. The simulations are conducted for the period 1 to 17 January 1991, which included an event in which the temperature at Signy station peaked at 17.4 degrees Celsius on 13 January 1991, as well as a series of consecutive warm events preceding this. The dataset consists of 1) 10 m zonal wind, 10 m meridional wind, 1.5 m temperature, 1.5 m dew point temperature, 1.5 m relative humidity, and mean sea level pressure at a temporal resolution of every 1 hr for the period 1 to 17 January, 2) zonal wind, meridional wind, vertical wind, and potential temperature on model levels at 00UTC 13 January, and 3) rainfall rate at 00 UTC 13 January (averaged over a 3-hr period). The MetUM is run over a domain that includes South Orkney Islands and the surrounding ocean, which comprises 120 x 120 grid points at a grid spacing of 1 km. The model output is used to investigate the detailed influence of South Orkney Islands orography on temperature, precipitation, and winds, and in particular the importance of foehn events in producing extreme warm temperatures at Signy station.
Funding:
1) Core funding from the Natural Environment Research Council (NERC) to the Atmosphere, Ice and Climate Programme of British Antarctic Survey (BAS).
2) NERC National Capability International grant SURface FluxEs In AnTarctica (NE/X009319/1).
3) European Union's Horizon 2020 research and innovation framework programme under Grant agreement no. 101003590 (PolarRES).
Simple
- Date (Creation)
- 2023-09-25
- Date (Revision)
- 2023-09-25
- Date (Publication)
- 2023-09-25
- Date (released)
- 2023-09-25
- Edition
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1.0
- Unique resource identifier
- https://doi.org/10.5285/0b011472-c766-4190-8718-8cf4be95daa6
- Codespace
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doi
- Unique resource identifier
- GB/NERC/BAS/PDC/01776
- Codespace
- Unique resource identifier
- NE/X009319/1
- Codespace
-
award
- Other citation details
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Please cite this item as: Orr, A., & Phillips, T. (2023). MetUM high-resolution simulations of extreme warm temperature events over South Orkney Islands from 1 to 17 January 1991 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/0b011472-c766-4190-8718-8cf4be95daa6
- Credit
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No credit.
- Status
- Completed
- Point of contact
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Organisation name Individual name Electronic mail address Role British Antarctic Survey Orr, Andrew Author British Antarctic Survey Phillips, Tony Author NERC EDS UK Polar Data Centre Point of contact
- Maintenance and update frequency
- As needed
- Maintenance note
- Completed
- Theme
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MetUM
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extreme warm temperature events
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fohn events
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high-resolution atmospheric modelling
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- Place
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South Orkney Islands
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GEMET - INSPIRE themes, version 1.0
- 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
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Data supplied under Open Government Licence v3.0
- Use constraints
- Other restrictions
- Other constraints
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No restrictions apply.
- Unique resource identifier
- url
- Codespace
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url
- Association Type
- Larger work citation
- Unique resource identifier
- url
- Codespace
-
url
- Association Type
- Larger work citation
- Unique resource identifier
- url
- Codespace
-
url
- Association Type
- Cross reference
- Spatial representation type
- Text, table
- Language
- English
- Character set
- UTF8
- Topic category
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- Climatology, meteorology, atmosphere
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- Begin date
- 1991-01-01
- End date
- 1991-01-17
- Supplemental Information
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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
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European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
- Date (Publication)
- 2008-11-12
- Cited responsible party
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Organisation name Individual name Electronic mail address Role European Petroleum Survey Group
Publisher
- Unique resource identifier
- urn:ogc:def:crs:EPSG::3031
- Version
-
6.18.3
Distributor
- Distributor contact
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Organisation name Individual name Electronic mail address Role NERC EDS UK Polar Data Centre Distributor
- Distributor format
-
Name Version application/x-hdf application/netcdf
- Units of distribution
-
bytes
- Transfer size
- 62914560
- OnLine resource
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Protocol Linkage Name WWW:LINK-1.0-http--link
https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=0b011472-c766-4190-8718-8cf4be95daa6 Get Data
- Units of distribution
-
bytes
- Transfer size
- 62914560
- OnLine resource
-
Protocol Linkage Name WWW:LINK-1.0-http--link
https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=0b011472-c766-4190-8718-8cf4be95daa6 Get Data
- Hierarchy level
- Dataset
- Statement
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Methodology:
The UK Met Office Unified Model (known as MetUM) uses the Regional Atmosphere physics configuration for mid-latitudes (RA1M; Bush et al. 2020) configuration of version 13. The MetUM uses 70 vertical levels in the atmosphere. The MetUM model setup uses three (one-way) nested domains with horizontal grid spacings of 12, 4 and 1 km, comprising 100 x 100, 100 x 100, and 120 x 120 grid points, respectively. The innermost 1 km domain covers the South Orkney Islands and surrounding ocean, and uses orography derived from the 100 m resolution Radarsat Antarctic Mapping Project (RAMP) digital elevation model. Initial and boundary conditions for the outermost 12 km domain are supplied by a global version of the MetUM at N512 resolution (1024 x 768 grid points, equivalent to a horizontal resolution of ~25 km at midlatitudes), which is initialised with ERA5 data. The 12 km model is subsequently used to produce initial and boundary conditions for the 4 km model, which in turn produces initial and boundary conditions for the 1 km model. The model is run twice-daily at 00 and 12 UTC to produce a series of 24 h forecasts. The initial 12 h of each forecast is discarded as spin-up, with the remaining part of the forecasts concatenated together to form a continuous time series.
Metadata
- File identifier
- 0b011472-c766-4190-8718-8cf4be95daa6 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Hierarchy level name
-
dataset
- Date stamp
- 2023-09-25
- Metadata standard name
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ISO 19115 Geographic Information - Metadata
- Metadata standard version
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ISO 19115:2003(E)
- Metadata author
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Organisation name Individual name Electronic mail address Role NERC EDS UK Polar Data Centre Point of contact
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