Introduction (base directory)

O2A data is archived. The data structure for archiving is described here. The SENSOR's parameter codes (URNs, Uniform Resource Names), e.g. vessel:polarstern:hydrosweep_ds3 describes the base storage directory for this specific device. This base directory is defined by the metadata description in sensor.awi.de.   Examples for base directory:   vessel:polarstern:hydrosweep_ds3 , towed_systems:loki_10001_02

...

Datastructure below Sensor URN base directory

/exdata/

The base-directory is given by the sensor urn. Expedition data is located under /base-directory/exdata/   The level below /exdata/ describes the expedition and if applicable the science activity and device operation. 

...

examples: vessel/polarstern/hydrosweep_ds3/exdata/PS122_.1/,  towed_systems/ofos_1/digital_camera/exdata/PS121_49-1/       TODO: _ is ambiguous   if used for expedition_leg vs expedition_scienceactivity. _ shall therefore not be used in the expedition name for legs.  "." has to be used instead for splitting expeditions into several legs.

...