Meta: a structure array containing the following metadata fields:
- deviceID: A unique identifier to represent the instrument within the NEPTUNE Canada network.
- 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.
- deviceName: A name given to the instrument.
- deviceCode: A unique string for the instrument which is used to generate data product filenames.
- deviceCategory: Device category to list under data search ('Echosounder').
- lat: Obtained at time of deployment.
- lon: Obtained at time of deployment.
- depth: Obtained at time of deployment.
- deviceHeading: Obtained at time of deployment. Will be NaN if mobile or if both site heading and device offset are null.
- devicePitch: Obtained at time of deployment. Will be NaN if mobile or if both site heading and device offset are null.
- deviceRoll: Obtained at time of deployment. Will be NaN if mobile or if both site heading and device offset are null.
- siteName: Name corresponding to its latitude, longitude, depth position.
- locationName: The node of the NEPTUNE Canada observatory. Each location contains many sites.
- 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.
- MobilePositionSensor.name: A cell array of sensor names for mobile position sensors. If not a mobile device, this will be an empty cell string.
- MobilePositionSensor.sensorID: A array of unique identifiers of sensors that provide position data for mobile devices - this data may be used in this data product.
- MobilePositionSensor.deviceID: An array of unique identifiers of sensors that provide position data for mobile devices - this data may be used in this data product.
- MobilePositionSensor.dateFrom: An array of datenums denoting the range of applicability of each mobile position sensor - this data may be used in this data product.
- MobilePositionSensor.dateTo: An array of datenums denoting the range of applicability of each mobile position sensor - this data may be used in this data product.
- MobilePositionSensor.typeName: A cell array of sensor names for mobile position sensors. If not a mobile device, this will be an empty cell string. One of: Latitude, Longitude, Depth, COMPASS_SENSOR, Pitch, Roll.
- MobilePositionSensor.offset: An array of offsets between the mobile position sensors' values and the position of the device (for instance, if cabled profiler has a depth sensor that is 1.2 m above the device, the offset will be -1.2m).
- MobilePositionSensor.units: A cell array of sensor names for mobile position sensors. If not a mobile device, this will be an empty cell string.
- deploymentDateFrom: The date of the deployment on which the data was acquired.
- deploymentDateTo: The date of the end of the deployment on which the data was acquired (may be omitted if still deployed).
- samplingPeriod: Sampling rate of the instrument in seconds (maybe omitted on some devices that have no scalar sensors).
- samplingPeriodDateFrom: matlab datenum of the start of the corresponding sample period (maybe omitted on some devices that have no scalar sensors).
- samplingPeriodDateTo: matlab datenum of the end of the corresponding sample period (maybe omitted on some devices that have no scalar sensors).
- searchID: unique number tracking this search request (not normally included).