metadata: a structure array (one structure per device) containing the following metadata fields:
- creationDate:Date and time (using ISO8601 format) that the data product was produced. This is a valuable indicator for comparing to other revisions of the same data product.
- deviceDetails: a structure array with a structure for each deployment, with the following fields:
- deviceDeploymentDateFrom
- deviceDeploymentDateTo
- deviceID: A unique identifier to represent the instrument within the ONC observatory.
- deviceName: A name given to the instrument.
- deviceCategory: A unique name given to the category of devices, such as 'CTD'
- deviceCategoryCode: Code representing the device category. Used for accessing webservices, as described here: API / webservice documentation.
- deviceCode: A unique string for the instrument which is used to generate instrument search data product file names.
- location: a structure array with a structure for each deployment location, with the following fields:
- locationName: The node of the ONC observatory. Each location contains many sites.
- stationName: Secondary location name.
- stationCode: Code representing the station. Used for accessing webservices, as described here: API / webservice documentation.
- depth_metres: Obtained at time of deployment. If NaN, the device is mobile and this position is a variable, the data for which is supplied by a sensor in the data struct.
- lat_degrees: Obtained at time of deployment. If NaN, the device is mobile and this position is a variable, the data for which is supplied by a sensor in the data struct.
- lon_degrees: Obtained at time of deployment. If NaN, the device is mobile and this position is a variable, the data for which is supplied by a sensor in the data struct.
- heading_degrees: Obtained at time of deployment. If NaN, the device is mobile and this position is a variable, the data for which is supplied by a sensor in the data struct.
- pitch_degrees: Obtained at time of deployment. If NaN, the device is mobile and this position is a variable, the data for which is supplied by a sensor in the data struct.
- roll_degrees: Obtained at time of deployment. If NaN, the device is mobile and this position is a variable, the data for which is supplied by a sensor in the data struct.
- dataQualityComments: In some cases, there are particular quality-related issues that are mentioned here. This is distinct from QAQC information contained in the data structure.
- totalScalarSamplesReceived: The number of time stamps that have any valid data on any sensor (at each time stamp). Only defined for metaData(1).totalScalarSamplesReceived, as this total is a summary of all device deployments in the data product.