News and Updates
The latest in e-RA and the Long Term experiments
Broadbalk
More than 175 years of data on Winter Wheat
Park Grass
150 years of ecological studies
Hoosfield
Experiments on Barley
Geescroft
A wilderness experiment
e-RA provides a permanent managed database for secure storage of data from Rothamsted's Long-term Experiments, the oldest, continuous agronomic experiments in the world. Together with the accompanying meteorological records, associated documentation and sample archive, it is a unique historical record of experiments that have been measured continuously since 1843.
Browse the e-RA site using the top menu:
- Sites: Rothamsted Research has experimental arable farms across four sites in England, the original and most important is at Rothamsted, Harpenden (since 1843), with others at Woburn (since 1876), Brooms Barn (since 1962) and Saxmundham (1965-2010).
- Experiments: Lists the main long-term experiments, grouped by research farm. Each experiment is described extensively and has a list of all the collated datasets currently available for it, supporting documentation, site details, history and images.
- Datasets: The Open Access Datasets (OADs) currently available for the long-term experiments. We include advice on copyright, appropriate credits, data quality and how to access the two different types of datasets. New prepared datasets are announced on Twitter.
- Meteorological Data: Daily meteorological data is recorded at three of the Rothamsted Research sites: Rothamsted, Woburn and Brooms Barn. Summary data is available for Saxmundham. This section provides information on the available collated datasets plus data collection and processing methods, advice on copyright, appropriate credits, data quality and how to access the three different types of datasets. We also provide educational activities and datasets for schools.
- About: Information on the e-RA project, who to contact, how to give credit and news on Twitter.
Use our tools to search the database, publications and scanned historical documents
Types of Data
- Open Access Datasets (OADs): Data directly downloadable with accompanying metadata, no password required.
e-RAdata: This database (previously the Data Extraction Tool, DET) provides the daily meteorological data. It also contains original LTE data, no accompanying metadata. It requires registration for a password.
Summary Open Access Datasets (Summary OADs) - Provide averaged or selected data with some accompanying metadata and descriptions. These provide a summary overview of key data, findings, trends, or changes in the data averaged across a restricted number of plots and/or years. Both LTE and met data are in this format. Meteorological (met) data present daily data averaged to monthly or annual values.
Complete Open Access Datasets (Complete OADs) - 'Frictionless' format providing comprehensive data with full metadata contained in file. These provide all plots and years relating to a distinct period of time in an LTE, in a machine-readable format with treatments, agronomic information and yields provided. Currently only LTE data is provided in this format.,
Please read the complete information in our "How to Access Datasets Page"
e-RA tools
e-RAdata
Access the e-RA database using the Data Extraction Tool. Contact the e-RA Data Curators for access.
e-RApubs
Search e-RA publications database for publications which have used the Rothamsted Long-term Experiments.
e-RAdoc
Access the e-RA scanned document archive, including annual reports, annual yield books, maps and other documents relating to the Long-Term Experiments.
For further information and assistance, please contact the e-RA curators, Sarah Perryman and Margaret Glendining using the e-RA email address: era@rothamsted.ac.uk
The e-RA Project Team Today
Project Management Team
Richard Ostler
Project Leader
Nathalie Castells
Software Developer
Margaret Glendining
Data curator
Sarah Perryman
Data curator
Data Provision, Preparation and Analysis
Chris Hall
Field Technician
Andy Gregory
Project leader
Tony Scott
Environmental Scientist
Suzanne Clark
Statistician
For further information and assistance, please contact the e-RA curators, Sarah Perryman and Margaret Glendining using the e-RA email address: era@rothamsted.ac.uk