페이지 이력

...

The EMSO data acquisition sub-system collects raw data from EMSO's marine observatories, which represent sensor arrays of varying geometry and various instruments or human observers, and brings the measures (data streams) into the system.

Depending on the deployment situation and nature of collected data, EMSO data is collected in real-time or delayed mode. Both   SV Community Behaviours#beh_acq_data collectionmethods are performed by the regional nodes of EMSO that are responsible for the operation of marine observatories. Marine observatories have to deal with many technological challenges due to their extreme, deep sea deployment locations. Therefore data acquired by marine observatory sensor systems is most often temporarily staged within the instruments or the observatory’s internal storage systems, and real-time transmission of data is only provided by observatories that are connected by submarine cables or permanent satellite connections. Whereas real time data are immediately available, the staged data becomes available for these systems only after visits during dedicated ship expeditions when the instruments are recovered or maintained. In addition, data are acquired through laboratory studies performed on material or samples collected at marine observatory sites such as multidisciplinary analyses of water samples, sediment cores, tow or trap catches.

Depending on the instrumentation and observatory design, on-site quality control and data filtering is applied, generally followed by a transformation process which converts the instrument specific data format into a transmission format required by EMSOs   Model Overview#subsys_cur  curatiand   Model Overview#subsys_pro systems at the regional data centre nodes. The data collected by the    data acquisition sub-system are transmitted to the   data curation sub-system , to be maintained and archived there.

...