085043be-4f39-4529-83a7-95173ff5a376 eng utf8 dataset dataset NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom polardatacentre@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact 2025-02-05 ISO 19115 Geographic Information - Metadata ISO 19115:2003(E) European Petroleum Survey Group (EPSG) Geodetic Parameter Registry 2008-11-12 publication European Petroleum Survey Group EPSGadministrator@iogp.org https://www.epsg-registry.org/ EPSG Geodetic Parameter Dataset The EPSG Geodetic Parameter Dataset is a structured dataset of Coordinate Reference Systems and Coordinate Transformations, accessible through this online registry. information publisher urn:ogc:def:crs:EPSG::3031 6.18.3 Microclimate data from The Backslope behind Signy Island research station, South Orkney Islands, Antarctic 2017-2024 2025-02-05 creation 2025-02-05 revision 2025-02-05 publication 2025-02-05 released 1.0 https://doi.org/10.5285/085043be-4f39-4529-83a7-95173ff5a376 doi GB/NERC/BAS/PDC/02009 https://data.bas.ac.uk/ Please cite this item as: Convey, P., Newsham, K., Geissler, P., Jobson, M., & Fox, D. (2025). Microclimate data from The Backslope behind Signy Island research station, South Orkney Islands, Antarctic 2017-2024 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/085043be-4f39-4529-83a7-95173ff5a376 Microclimate data reported hourly from 2017-2024 on the Backslope behind the British base at Signy Island, South Orkney Islands. Data comprises 15 climatic variables via an automatic data logger and is a continuation of a previous dataset from a logger at Jane Col on Signy Island. Data are not available for the entire temporal range for all variables. Data are collected as part of long-term monitoring of microclimate across the Southern Ocean. This dataset is supported by NERC funding under the British Antarctic Survey National Capability Programme, Polar Science for Planet Earth No credit. completed Convey, Peter British Antarctic Survey Researcher author Newsham, Kevin British Antarctic Survey Researcher author Geissler, Paul British Antarctic Survey Researcher author Jobson, Matt British Antarctic Survey Researcher author Fox, Derren The Royal Society for the Protection of Birds Researcher author NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact asNeeded completed EARTH SCIENCE > Atmosphere > Atmospheric Temperature > Air Temperature EARTH SCIENCE > Atmosphere > Atmospheric Temperature > Surface Air Temperature EARTH SCIENCE > Atmosphere > Atmospheric Temperature > Temperature Profiles EARTH SCIENCE > Land Surface > Frozen Ground > Soil Temperature EARTH SCIENCE > Land Surface > Land Temperature > Land Surface Temperature EARTH SCIENCE > Land Surface > Soils > Soil Moisture/Water Content theme Global Change Master Directory (GCMD) Science Keywords 2026-01-27 publication 23 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Greenbelt MD United States of America https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher humidity loggers microclimate micrometeorological temperature theme The Backslope, Signy Island Antarctica place Atmospheric conditions Land cover theme GEMET - INSPIRE themes, version 1.0 2021-01-06 revision otherRestrictions no limitations to public access otherRestrictions no limitations license Open Government Licence v3.0 otherRestrictions This data is governed by the NERC Data Policy: https://www.ukri.org/who-we-are/nerc/our-policies-and-standards/nerc-data-policy/ otherRestrictions This data is governed by the NERC data policy and supplied under Open Government Licence v.3 otherRestrictions There are no access constraints. url url crossReference textTable eng utf8 biota climatologyMeteorologyAtmosphere -45.62806 -45.62806 -60.69861 -60.69861 2017-06-15 2023-11-30 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. NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information distributor bytes 1 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=085043be-4f39-4529-83a7-95173ff5a376 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: Microclimate data was recorded from The Backslope behind Signy Island research station, operated by the British Antarctic Survey, on the South Orkney Islands, Antarctica. Data were automatically recorded for 15 climatic variables on an hourly basis. Variables measured were the following: Mean air temperature [degrees Celsius] Mean relative humidity [percentage] Air pressure [mbar] Wind speed [m/s] Wind direction [degrees, N=0 degrees true] Mean quantum photosynthetically active radiation (QPAR): quantum flux [m-2 s-1 nm-1] Air temperature ~2.5 cm above ground surface [degrees Celsius] [Logger no. 1] Mean soil temperature at ~ 0.5cm below surface [degrees Celsius] [Logger no. 2] Mean soil temperature at ~ 3.5cm below surface [degrees Celsius] [Logger no. 3] Mean soil temperature at ~ 6.5cm below surface [degrees Celsius] [Logger no. 4] Mean water content [uSec] just below ground surface Mean water content [uSec] just below ground surface Mean water content [uSec] just below ground surface Mean water content [uSec] just below ground surface Mean logarithmic temperature [degrees Celsius] Data collection: Logger make: Campbell CR1000M Variables: wind direction. Sensor: Vector W200P. Sensor serial no.: 61719/CV19 Variables: temperature (all depths). Sensor: Campbell 107. Serial no.: JCSL 047394 x4 Variable: soil moisture. Sensor: Campbell CS616. Serial no.: 13932-225 x 4 Variable: relative humidity. Sensor: Campbell CS215. Serial no.: JCSL 047394 x4. Variable: photosynthetically active radiation. Sensor: Skye SKP215. Serial no.: 47395. Variable: wind speed. Sensor: A100R. Serial no.: 13140/FHYN Variable: air pressure. Sensor: Setra 278. Serial no.: 6881397 Please reach out to the Polar Data Centre at PDCServiceDesk@bas.ac.uk if in need of a copy of the Campbell manual. Data quality: Due to frost heave, Logger no. 1 has shifted to 2.5cm above the surface of the ground and is thus measuring air temperature. Each subsequent logger is approximately 3 cm below the previous logger, at 0.5, 3.5 and 6.5cm below the surface, respectively. The exact locations of sensors within the soil does change over time due to environmental conditions, so depths recorded are a guide. Quality control was carried on the data. Specifically, we checked the data for outliers on variables which we concluded followed a normal distribution. A z-score calculation was carried out using the following equation: abs(x_i - mean(x_month)) / stddev(x_month) where we took the absolute value of the variable [x_i], then subtracted x_i by the mean of x_i values measured in that month [x_month] (using the DATE column), and then divided over the standard deviation of x_i values measured in that same month [stdev_x_month]. Using values only within the same month was to constrain the calculation to a range of values subject to seasonal variation, that would otherwise yield results that could include, for example, temperatures expected during the summer as well as the winter. These values were then categorised into three groups: z-scores under 3, between 3-6, and above 6. An additional column was then created alongside each parameter denoting whether the z-score for that value was under 3 (denoted as '1'), between 3 and 6 (denoted as '2'), or above 6 (denoted as '3'). This is to give users the option to filter values in the data that have been flagged as potential outliers based on the z-score calculation above. Z scores were removed for air pressure and wind direction, as these had no z-score groupings besides 1. Due to the harsh conditions on Signy, data has not been recorded continually across the period. Missing values, where data was not recorded, are included in the dataset. For columns 'wind speed' and 'wind direction', values of 0 may indicate that the sensor was frozen. Data have been formatted to 3 decimal places. asNeeded completed