Date (Creation)

2022-01-11

Date (Revision)

2022-01-11

Date (Publication)

2022-01-11

Date (released)

2022-01-11

Edition

1

Unique resource identifier

https://doi.org/10.5285/77c34cdd-3f9a-456f-af11-1af6241d5718

Codespace

doi

Unique resource identifier

GB/NERC/BAS/PDC/01598

Codespace

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

Other citation details

Please cite this item as: None

Credit

No credit.

Status

Completed

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Antarctic Survey	Convey, Pete		Author
British Antarctic Survey	Geissler, Paul		Author
British Antarctic Survey	Massey, Alison		Author
British Antarctic Survey	Newsham, Kevin K		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 > Atmosphere > Atmospheric Temperature > Air Temperature
• EARTH SCIENCE > Land Surface > Frozen Ground > Soil Temperature

Theme

• Antarctica

• loggers

• microclimate

• micrometeorological

• temperature

Place

• Coal Nunatak Antarctica

• Alexander Island Antarctica

GEMET - INSPIRE themes, version 1.0

• Atmospheric conditions
• 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

There are no access constraints.

Unique resource identifier

url

Codespace

url

Association Type

Cross reference

Unique resource identifier

doi

Codespace

doi

Association Type

Cross reference

Spatial representation type

Text, table

Language

English

Character set

UTF8

Topic category

• Biota
• Climatology, meteorology, atmosphere

Begin date

2006-01-31

End date

2019-02-13

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:

Microclimate data was recorded at Anchorage Island. Data was automatically collected and recorded on an hourly basis. 10 climatic variables were recorded: wind speed, wind direction, air temperature, photosynthetically active radiation (PAR), UVA, UVB, and temperature at 4 different depths (0m, 5m, 10m, and 20m).

Data collection:

Two loggers were used:

31-Jan-2006 - 15-Jan-2008 Logger: Campbell CR10X, serial no. XE6531.

15-Jan-2008 - 13-Feb-2019 Logger: Campbell CR1000 serial no. 8288.

The same sensors have been used throughout monitoring.

Variables: wind speed, wind direction. Sensor: Young 05103. Sensor serial no.: 65997.

Variables: temperature (all depths). Sensor: Campbell 107. Sensor serial no.:12966/5, 07006/8, 05393/3, ?.

Variable: photosynthetically active radiation. Sensor: Skye SK215.

Variable: UVA. Sensor: Delta-T UV-AP. Sensor serial no.: AP-002.

Variable: UVB. Sensor: Skye SKU430. Sensor serial no.: 0705 29724.

Data quality:

Quality control was carried out on this publication [Version 2.0] of 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.

Due to the harsh conditions in Coal Nunatak, data has not been recorded continually across the period. Missing values, where data was not recorded, are included in the dataset.

The exact locations of sensors within the soil does change over time due to environmental conditions, so depths recorded are a guide.

For columns 'wind speed' and 'wind direction', values of 0 may indicate that the sensor was frozen.

Metadata

File identifier

77c34cdd-3f9a-456f-af11-1af6241d5718 XML

Metadata language

English

Character set

UTF8

Hierarchy level

Dataset

Hierarchy level name

dataset

Date stamp

2022-01-11

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