| Evans, J A, Mee, K, Chenery, C A, Cartwright, C E, Lee, K A, and Marchant, A P. 2018. User guide for the Biosphere Isotope Domains GB (Version 1) dataset and web portal. British Geological Survey. (OR/18/005).
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Scale
The dataset is represented by 1 km hexagon cells and has been derived from the BGS Geology and BGS Soil Parent Material data, both 1:50 000 in scale and therefore providing 50 m ground resolution.
Field descriptions
Table 1 Attribute table field descriptions.
| Field name
|
Field type
|
Description
|
| SR_DOMAIN
|
String (254)
|
Name of the strontium domain (based on geology, unit age, geography)
|
| SR_MEDIAN
|
Double
|
Median strontium isotope value
|
| SR_Q1
|
Double
|
First quartile strontium isotope value
|
| SR_Q3
|
Double
|
Third quartile strontium isotope value
|
| SR_INTERQR
|
Double
|
Interquartile range of strontium isotope values
|
| SR_L_WHISK
|
Double
|
Lower whisker of strontium isotope value
|
| SR_U_WHISK
|
Double
|
Upper whisker of strontium isotope value
|
| SR_COUNT
|
Long integer
|
Number of sample measurements used in statistical analysis
|
| SR_MIN
|
Double
|
Minimum strontium isotope value
|
| SR_MAX
|
Double
|
Maximum strontium isotope value
|
| SR_MEAN
|
Double
|
Mean strontium isotope value
|
| SR_1SD
|
Double
|
Strontium isotope value to 1 standard deviation
|
| S_DOMAIN
|
String (50)
|
Name of the sulphur domain
|
| S_MEDIAN
|
Double
|
Median sulphur isotope value
|
| S_Q1
|
Double
|
First quartile sulphur isotope value
|
| S_Q3
|
Double
|
Third quartile sulphur isotope value
|
| S_INTERQR
|
Double
|
Interquartile range of sulphur isotope values
|
| S_L_WHISK
|
Double
|
Lower whisker of sulphur isotope value
|
| S_U_WHISK
|
Double
|
Upper whisker of sulphur isotope value
|
| S_COUNT
|
Short integer
|
Number of sample measurements used in statistical analysis
|
| S_MIN
|
Double
|
Minimum sulphur isotope value
|
| S_MAX
|
Double
|
Maximum sulphur isotope value
|
| S_MEAN
|
Double
|
Mean sulphur isotope value
|
| S_1SD
|
Double
|
Sulphur isotope value to 1 standard deviation
|
| O_H2O_MIN
|
Double
|
Minimum oxygen isotope value from water samples
|
| O_H20_MAX
|
Double
|
Maximum oxygen isotope value from water samples
|
| O_TE_MIN
|
Double
|
Minimum oxygen isotope value from tooth enamel
|
| O_TE_MAX
|
Double
|
Maximum oxygen isotope value from tooth enamel
|
| VERSION
|
String (50)
|
Version number of the Biosphere Isotope Domains GB GIS dataset
|