subsequent section provides guidelines for data and metadata structures that will allow mariners to collect data in a format that is uniform and allows for easy data-sharing and crowdsourcing. Data and Metadata Descriptions [Add text that describes unique identifier requirement] tables conform to the CSB GeoJSON data format 2.0 [include hyperlink to GeoJSON] 3.1 Data Field Description Example Longitude *(Required) Describes the longitude value of the 19.005236 horizontal geographic position; in WGS84; Decimal Degrees to six decimal places; Normally derived from the GPS NMEA GGA String; Positive = East; Negative = West Latitude *(Required) Describes the latitude value of the 40.914812 horizontal geographic position; in WGS84; Decimal Degrees to six decimal places; Normally derived from the GPS NMEA GGA String; Positive = North; Negative = South (request as many decimals as can be provided) Depth *(Required) Describes the measured distance to the 7.3 sea floor. Depth is always a positive value in meters with accuracy of tenths of meters; Normally derived from NMEA DPT data string Date & Time ISO 8601/UTC Time Stamp of the depth *(Required) measurement; Normally derived from NMEA GGA string Table 3.2 Metadata Field Description Example Convention Describes what CSB JSON format CSB 2.0 version used Unique Vessel ID Identifies the trusted node source, and SEAID-UUID *(Required) uniquely identifies the contributing vessel; the first five characters Use ROSEP for Rose Point designate the trusted node source, the Navigation contributors “platform.uniqueID” sixth character is a hyphen (-), and the
subsequent section provides guidelines for data and metadata structures that will allow mariners to collect data in a format that is uniform and allows for easy data-sharing and crowdsourcing. Data and Metadata Descriptions [Add text that describes unique identifier requirement] tables conform to the CSB GeoJSON data format 2.0 [include hyperlink to GeoJSON] 3.1 Data Field Description Example Longitude *(Required) Describes the longitude value of the horizontal geographic position; in WGS84; Decimal Degrees to six decimal places; Normally derived from the GPS NMEA GGA String; Positive = East; Negative = West 19.005236 Latitude *(Required) Describes the latitude value of the horizontal geographic position; in WGS84; Decimal Degrees to six decimal places; Normally derived from the GPS NMEA GGA String; Positive = North; Negative = South (request as many decimals as can be provided) 40.914812 Depth *(Required) Describes the measured distance to the sea floor. Depth is always a positive value in meters with accuracy of tenths of meters; Normally derived from NMEA DPT data string 7.3 Date & Time *(Required) ISO 8601/UTC Time Stamp of the depth measurement; Normally derived from NMEA GGA string Table 3.2 Metadata Field Description Example Convention Describes what CSB JSON format version used CSB 2.0 Unique Vessel ID *(Required) “platform.uniqueID” Identifies the trusted node source, and uniquely identifies the contributing vessel; the first five characters designate the trusted node source, the sixth character is a hyphen (-), and the SEAID-UUID Use ROSEP for Rose Point Navigation contributors
IRCC8-07F2-Draft_CSB-guidance.docx