This dataset contains the mean and variance of Deuterium delta precipitation values of weather stations sampled between 1960 and 2015. Data have been compiled by the International Atomic Energy Agency IAEA in Vienna (GNIP Project: Global Network of Isotopes in Precipitation).
data(GNIPdata)The dataframe includes 62040 observations on the following variables:
| [, 1] | lat | (numeric) | Latitude coordinate [decimal degrees] |
| [, 2] | long | (numeric) | Longitude coordinate [decimal degrees] |
| [, 3] | elev | (numeric) | Elevation asl [m] |
| [, 4] | isoscape.value | (numeric) | Deuterium stable hydrogen delta value [per thousand] |
| [, 5] | year | (numeric) | Year of sampling |
| [, 6] | month | (numeric) | Month of sampling |
| [, 7] | stationID | (Factor) | The unique identifier of the weather station |
The dataset contains non-aggregated data for 920 weather stations across the world.
This dataset is the raw data source and should not be directly used for fitting isoscapes.
Please use queryGNIP to filter the dataset by time and location.
If you want to use your own dataset, you must format your data as those produced by the function codequeryGNIP.
GNIP Project IAEA Global Network of Isotopes in Precipitation:
queryGNIP to prepare the dataset for the analyses and to filter by time and location.
# NOT RUN {
data(GNIPdata)
head(GNIPdata)
# }
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