ISRaD Database

Accessing ISRaD Data

Using R, the compiled database or individual ISRaD datasets can be downloaded (in .xlsx, .csv, and .rda format) and easily loaded into an R session following this tutorial. For more information see the R package page of this website.

For non-R users, ISRaD data is available in .xlsx and .csv formats. Contents of the zip archive are described in detail in the Data Files section below.

Terms of Use and Citing ISRaD

Anyone may share or adapt the ISRaD dataset, provided they do so in accordance with the Creative Commons Attribution 4.0 International Public License, also referred to as CC BY. In addition, we strongly encourage ISRaD users to follow two simple guidelines for use:

Cite Publication and Version

When utilizing the resources provided by ISRaD, including the complete dataset, individually curated entries, or value-added calculations included in the R-package, users should cite the source publication (Lawrence, et al. 2020) and reference the version of ISRaD data that was used for their work (e.g. ISRaD_data_v1.2.3.2020-01-30). Additionally, if users leverage individual data entries from the database, they should also cite the original source dataset and/or paper.

Contribute data

When users interpret their own data in the context of data accessed from ISRaD, they should submit those new data for inclusion in ISRaD after they have published their results and/or obtained a DOI for their dataset. New entries should be submitted to: info.israd@gmail.com

Raw vs. “Extra” Data

  • Raw Data Files

    (with names beginning in “ISRaD_data”)

    Contains only data ingested from the original source datasets.

    Description of ISRaD variables can be dowloaded here (.xlsx):

    ISRaD Template Information

  • "Extra" Data Files

    (with names begnining in “ISRaD_extra”)

    Includes the original raw data as well as additional variables that have either been calculated from existing data or imported based on geospatial coordinates, such as geospatially referenced land cover, climate, and soil data.

    Description of ISRaD Extra variables can be dowloaded here (.xlsx):

    ISRaD Extra Information

Data Files

The following files are included in the ISRaD_database_files.zip archive:

  • ISRaD_data_vX.date.xlsx - Full hierarchical database compiled in a single .xlsx workbook

    ISRaD_data_vX.date.rda - Same but in (binary) R data format

  • ISRaD_data_flat_layer_vX.date.csv - Layer data and associated information (Layer, Profile, Site, Metadata)

    ISRaD_data_flat_flux_vX.date.csv - Flux data and associated information (Flux, Profile, Site, Metadata)

    ISRaD_data_flat_interstitial_vX.date.csv - Interstitial data and associated information (Interstitial, Profile, Site, Metadata)

    ISRaD_data_flat_fraction_vX.date.csv - Fraction data and associated information (Fraction, Layer, Profile, Site, Metadata)

    ISRaD_data_flat_incubation_vX.date.csv- Incubation data and associated information (Incubation, Layer, Profile, Site, Metadata)

  • ISRaD_extra_vX.date.xlsx - Same as ISRaD_data_vX.date.xlsx, but with additional calculated/filled data fields

    ISRaD_extra_vX.date.rda - Same but in (binary) R data format

  • ISRaD_extra_flat_layer_vX.date.csv - Layer data and associated information (Layer, Profile, Site, Metadata)

    ISRaD_extra_flat_flux_vX.date.csv - Flux data and associated information (Flux, Profile, Site, Metadata)

    ISRaD_extra_flat_interstitial_vX.date.csv - Interstitial data and associated information (Interstitial, Profile, Site, Metadata)

    ISRaD_extra_flat_fraction_vX.date.csv - Fraction data and associated information (Fraction, Layer, Profile, Site, Metadata)

    ISRaD_extra_flat_incubation_vX.date.csv - Incubation data and associated information (Incubation, Layer, Profile, Site, Metadata)

  • readme.txt - Metadata and information about zip archive contents.

Versioning

The names of the data files reflect the version of ISRaD used and the date on which the database was compiled. Names are constructed in the format (data name)_(vX).(date).(format), where data name tells what data this is (ie. ISRaD_extra_flat_layer), vX refers to the official ISRaD version number (e.g. “v1.2.3”), date gives the date when the data were compiled (yyyy-mm-dd), and format is the file type.

ISRaD Data Structure

The ISRaD database is compiled from individual template files, each of which describes a single data set (i.e. linked to a DOI).

In ISRaD we strive to incorporate radicoarbon data collected at many different spatial and temporal scales: from laboratory fractionations to gaseous fluxes and dissolved organics observed in the field. The ISRaD database is structured accordingly as a list of hierarchically-linked tables designed for recording these different kinds of data.

ISRaD data tables (in descending hierarchical order)

  • General information

    • Metadata identify the source of the data (DOI, citation)

    • Site data provide location information (spatial coordinates)

    • Profiles are places sampled within the general area of the site (e.g. soil profiles, flux chambers, etc.). Finer scale spatial coordinates should be reported if available. Report general data on vegetation, soil taxonomy, and local climate (mean annual temperature and precipitation) at the profile level.

  • Data associated with an individual Profile

    • Flux and Interstitial measurements, e.g. CO2, methane, dissolved organic matter, etc.

    • Layer %C, %N, bulk density, etc. data from individual depth layers of a soil Profile.

  • Data associated with a specific Layer are reported in the following tables:

    • Fractions of soil as defined by physical, chemical, or biological methods

    • Amount and isotoptic signature of CO2 or methane produced during laboratory Incubations

Detailed database structure:

An overview of variables included in ISRaD can be found here.

Current ISRaD Data

List of datasets in ISRaD

In progress datasets