Several types of file are available, all described in their accompanying technical reports (linked below)

• 2003: Data report | Data directory (365 MB) | DNSC source
• 2004: Data report | Data directory (743 MB)| DNSC source
• 2005: (report to follow) | Data directory (167 MB) | DNSC source

The helicopter EM allows the "ice+snow" thickness to be determined on scales of 100km. The instrument was used extensively during both campaigns, but weather conditions did not allow its use in 2005.

• 2003: Data report | Data (14.2 MB)| AWI source
• 2004: Overview | Data (12.7 MB)| AWI source
• 2005: (to follow)

AWI also have a nice system for geo-coding photographs taken during the HEM flights and these are available from the source institute (it doesn't quite work if I grab the pages here, so these links may break in the future):

• 2003: 1-Apr | 10-Apr | 11-Apr | 15-Apr | 19-Apr

A Geonics EM-31 was mounted in an AWI sledge or kayak and used to bridge the gap between the scales measured by drilling and the helicopter EM. It measures the distance from the instrument to the water, in the same manner as the HEM, giving total "ice+snow" thickness.

• 2003: Data report | Data
• 2004

The various 'clever' thickness measurement techniques were ground-truthed by good-old-fashioned hole drilling. This was done using both augers (2") and a hot water drill.

• 2003
• 2004

Drifting buoys: GPS position, Argos position, air temperature

Buoys were deployed in May 2004 and survived throughout the project. Positions and data are given until August 2006

• GPS position:
  Buoy 2 | Buoy 3 | Buoy 4 | Buoy 5 | Buoy 6 | Buoy 7
• Argos position, air pressure (11 MB)

An array of buoys was also deployed by the University of Hamburg during the 2003 experiment, and this has been kindly made available:

• 2003 Hamburg buoy positions

The buoys measured the long-period waves passing through the ice cover using sensitive orthogonal tiltmeters. Files give timeseries for X and Y tilt in ADC counts (=2.46129e-8 radians). Filename is start time of the record. Sampling interval is 0.459 seconds.

• 2004 Zip file 61 MB
• 2005 Zip file 63 MB
• 2006 (to Aug 15th) Zip file 26 MB

A meteorological mast was setup during the ice camp, from May 10th to 19th by the GEUS team. The comprehensive suite of measurements includes wind speed and direction, relative humidity, and air temperature at at two heights, together with SW up- and down-welling radiation, PIR incoming LW radiation and direction/inclination information. Measurements were recorded hourly.

• 2004: Met. data

The cruise track and measured parameters was downloaded from the Polarstern's data server during the ARK-XIX/1 cruise leg. File also includes ship's met data parameters: wind direction (true), wind speed, air temp and air pressure. Data are given every three hours.

• 2003: PODAS

These data are also available with other past Polarstern cruises direct from the AWI site at:
http://www.awi-bremerhaven.de/MET/java/PoldatJava.html