|Understand the different types of data products available in OOIN and learn about the information and details provided on the data product Facepage.|
|Details below outline a typical data product's Facepage, click here for details on navigating to through OOIN.|
A data product is any information product handled by OOIN. A data product can be observational data, derived data, aggregated data, or analysis and visualization products. Data products can represent ongoing streams of information, which are augmented with arrival of new data supplements.
Some data products (marked as processing level L0) are unprocessed, except for bringing the data into the OOI internal database. Other data products have been converted from instrument units to scientific units (processing level L1) or have undergone further processing to create derived products (processing level L2). The quality control level also varies: data products with QC level "a" have had no quality assessment or quality control. Those marked as QC level "b" have undergone automated quality control has have QC flags included in the data product. Data products that have had human evaluation are marked as QC level "c."
OOI provides access to data from OOI instruments, partner organizations with observational data, and products that its user community have created and shared.
The data as they are received from the instrument.1 These data are in instrument specific format and may, depending on the instrument, contain data for multiple sensors (interleaved), be in native senor units (e.g., counts, volts) or have processing steps already performed within the instrument (e.g., primary calibration.) They are persisted by the OOI. Instrument raw data should not be confused with Level 0 data products. An example of instrument raw data would be a format 0 binary file from an SBE-371M on a Global Flanking Mooring.
An easy way to view and choose variables, from the raw data streams coming off the instrument. The raw data is parsed into a canonical format. This allows for no loss of precision and is akin to L0 data in that it is unprocessed. For a given instrument, multiple parsed components may be available that represent the various data streams coming off the device.
Unprocessed data:1 Data that are in instrument/sensor units and at instrument/sensor resolution. They are sensor by sensor (unpacked and/or de interleaved) and are available in 001 supported formats (e.g., NetCDF). These data are sometimes mistakenly called "raw" data. They are always persisted and archived by the OOI. Storage of Level 0 data enables reprocessing or reanalysis. It also enables researchers to perform their own fundamental quality control and calibration.
Basic Data:1 LO data that have been calibrated, are in well-defined scientific units and may have some QC applied. The amount and type of applied QC in the delivered data set may be selectable by the end user (e.g., user may request only good data or all data). QC may utilize simple automated techniques, complex algorithms or human inspection. Level 1 data are sometimes called "processed" data, though this is not encouraged because it can be confusing. Actions to transform Level 0 to Level 1 data are captured and presented in the metadata of the Level 1 data.
Derived Data Products:1 Data that have been manipulated and/or combined and include new values not present in original data. The OOI provides only a limited number of derived products.
1 Wording taken from the OOI Data Management Plan version 1-27, DCN 1102-00000, 2012-11-06.
Multiple tabs are in view or selectable and allow the user to investigate the various aspects of the data product that is selected.
The left hand column of the page includes sections show Identification, Data Bounds, Description, and Contact Information. Note also the Connections block that allows a user to link to other pages directly, the source, facility, and direct data link.
The Data block displays data graphically or in table format and allows the user to view the data product variables interactively.
The Variables Information block lists all of the available variables by name along with the units, data type, and any pertinent comments.
For details on how to optimize the graphic view, see
Click here for information on Downloading Data.
Three different tabs allow the user access to more information about the data and the processes associated with the data products.
Shows entries for the most recent events associated with the data product.
Includes a general sections outlining the licensing information and data statistics. Additional blocks show acknowledgement notes and a usage statistics.
Displays any attachments accompanying the data product.