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Attention:

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). Helium is calculated to supply one 600 gramm balloon per day. If additional radio sonde ascents are planned, the user has to organize the additional sondes, balloons and helium. 

Summary

The radiosonde sounding system gathers meteorological data (pressure, temperature, humidity, wind, position) from a mandatory radiosonde.

Manufacturer Vaisala
Model
Serial No. n/a
Type radiosonde
SENSOR-Link ↪

Contacts

Name Institution Role
Bernd Loose Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Engineer In Charge
Holger Schmithüsen Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Data Provider
Alfred Wegener Institute for Polar and Marine Research Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Owner
Marion Maturilli Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Editor
Loretta Preis Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Device Contact

Components

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

Name Model Serial Number SENSOR-
Link
DigiCORA Sounding System MW41 MW41 n/a ↪
RS41-SGP Radiosonde RS41-SGP n/a ↪

Position

Infono xyz-position given, antenna located on upper observation deck, receiving station located in A112

Data logging, storage and archiving

Logged parameters

Parameter Sensor Output Type Unit
Atmospheric Temperature temperature K
Relative Humidity relative humidity %
pressure pressure hPa
wind speed wind speed m/s
wind direction wind direction deg

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 consultation with the data scientist and AWI Logistics they are uploaded to the PANGAEA repository. 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

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