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The OpenEarth philosophy related to data involves that important data sets, rather than working on a project-by-project basis, should be collected and be made available in a project-superseding manner.
OpenEarth intends all datasets to conform with a number of basic quality criteria:
- data is not just numbers and meta-information, but consists of raw data produced by the measuring equipment (e.g. volts) + processing scripts.
- raw data should be stored in the OpenEarthRawData repository enabling version control
- raw data should then be enriched with metadata and processed into useful data products (netCDF) using transformation scripts also put under version control in a repository
- resulting data products should conform to the best open source standards available
- data products should be made available easily via webbased interfaces but also with automated procedures for widely-used data processing languages (matlab, IDL, python, fortran, C, java)
- data products are primarily meant for dissemination, raw data and scripts are primarily meant for archiving.
To achieve this international standards are embraced like:
- NetCDF (self-describing, open source, widely-used file-format standard)
- CF parameter meta-data (vocabulary of quantities)
- Unidata units (vocabulary of units)
- EPSG spatial meta-data codes (vocabulary of coordinates)
- INSPIRE owner meta-data
- Open source Creative Commons philosophy or GNU
- OPeNDAP (as running operationally for MATROOS)
- OpenGIS
The data collection procedure and the relation between those standards is explained in the OpenEarth Data Standards document, developed in the framework of the EU FP7 Project MICORE. Currently data sets are being uploaded to the OPeNDAP test server. Examples from open datasets from the internet on OpenEarth include:
- Rijkswaterstaat coastal bathymetry data (JARKUS) bathymetry data (vaklodingen).
- Rijkswaterstaat coastal grain size fields.
- Rijkswaterstaat sediment atlas Wadden Sea (web source).
- Rijkswaterstaat DONAR database subset from www.waterbase.nl (water levels, salinity, temperature, SPM, chlorofyll) (web source).
- KNMI potential wind time series (web source).
- KNMI daily averaged meteo time series (web source).
Numerous other datasets have been or are being uploaded continually in the MICORE and Building with Nature research programmes.
Some related initiatives (which OpenEarth does not intend to compete with, but to share with and to learn from):
Unknown macro: {lozenge} OpenEarth data collection protocol |
Unknown macro: {lozenge} OpenEarth Tutorials |
Unknown macro: {lozenge} Store your raw data here |
Unknown macro: {lozenge} Access using OpenDAP protocol (currently pre-production server) |
Unknown macro: {lozenge} Access data using the WMS and WFS services |