Using the CEDA Data Catalogue
The CEDA data catalogue has been designed to allow users to quickly find relevant data and related background information and related data of interest. This introduction gives some basic information about how it is structured and therefore how best to find data you wish to use.
Underpinning CEDA's data catalogue are some key concepts that are useful to understand. The catalogue is centred on the following key types of record:
- Dataset - these records describe and link to the actual data in our archive. They also provide spatial and temporal information, access and usage information and link to background information on why and how the data were collected.
- Dataset Collection - a collection of Datasets that share some common purpose, theme or association. These collections link to one or more Dataset records.
- Project - background information about a project, programme or other major activity that provides the purpose for producing the data. Navigate from this record to the related Dataset record(s) (via the relevant Dataset Collection) to access the data.
- Instrument - describes an instrument that is used to collect data via observations. Follow the link to the associated Dataset records to access the relevant data.
- Platform- describes a platform (e.g. sites, stations, aircraft) on which instruments were mounted/located during the data collected during a project. Follow the link to the associated Dataset records to access the relevant data.
- Computation - describes computational stages in producing data - e.g. models, processing algorithms, used to produce data such as NWP and climate model output and Earth Observation higher level processed products. Follow the link to the associated Dataset records to access the relevant data.
What happens when I search?
You can search the CEDA Catalogue in a number of ways. By selecting the "Find data related to" option your search will always respond with a list of Datasets.
You can also search for information about each of the above records by selecting the "Find information about" option. When doing so your search will respond with a list of the record types specified.
In either case you can choose to search a variety of record types: Datasets, Projects, Dataset Collections, Instruments, Platforms and Computations. The default search selects Datasets.
All searches will look for matches in the "Title", "Abstract" and "Keywords" fields of the record type you have selected to search by. A summary of matching records will be displayed with links to the full catalogue entry and associated Dataset records (if relevant).
Browsing from one record to another
The various record types held in the catalogue are connected ways that you would expect. For example, a Dataset Collection may consist of many Datasets and they can both be related to a particular Project. Once you are viewing a particular record a set of related records will be shown on the right hand side of the screen so you can browse the linkages between different records in a logical manner.
View records with DOIs
View some records
The following sets of links connect to the first few records of each record type in the catalogue. Click on the title to see all the records of that type.