The system is operated by staff from the German weather service (DWD). Scientific co-use is possible according to prior agreement with AWI Logistics and Principal Investigator of the Polarstern Meteorological Observatory (Holger Schmithüsen).

Summary

The Digicora Sounding System receives measurements (temperature, humidity, position) from a radiosonde and processes them for further use.



ManufacturerVaisala
ModelDigiCORA III MW41
Serial No.n/a
Typemeteorological package





Contacts


NameInstitutionRole
Bernd LooseAlfred-Wegener-InstituteEngineer In Charge
Bernd LooseAlfred-Wegener-InstituteEditor
Lewin ProbstAlfred-Wegener-InstituteEditor
Holger SchmithüsenAlfred-Wegener-InstitutePrincipal Investigator
Holger SchmithüsenAlfred-Wegener-InstituteEditor
Peter von der GathenAlfred-Wegener-InstituteEditor
Marion MaturilliAlfred-Wegener-InstituteEditor


Components

The system consists of a sounding PC, electronic unit "DigiCora", ground check set, GPS antenna, telemtry antenna, Helium filling unit.

Position


Origin Description:no xyz-position given, antenna located on upper observation deck, receiving station located in A112


Data logging, storage and archiving

Logged parameters


ParameterSensor Output TypeUnit
relative humidityhumidity, relative%
latitudelatitudedegree
longitudelongitudedegree
temperatureair temperature°C


Central geographical ship's position and time standard

Time synchronising is regulated via onboard NTP server.
Geographical ship's position via unit's GPS receiver.

Rawdata storage on board

Mass data: The data acquisition software creates rawdata on the local drive of the sounding computer and in the mass storage.


|| root directory | data01 ||
|| directory name | CruiseNo \\ e.g. \\ ANT25_3 ||
|| file name | DBLK_YYYYMMDD_hhmmss.mwx || 
|| Data volume (MB per day) ca | 16 or 32 || 
|| Number of files per day ca | 1 or 2 ||

Data archiving on land

After the cruise, the operator transfers the measurement data along with required meta data to AWI after consultaion with the data scientist and AWI Logistics. Then, the data (including meta data) can be extracted from https://www.pangaea.de/ (for authorized users only).


|| File format(s) | *.txt || 
|| Calibration certificates | NO ||

Documentation