• Lighter-than-air ships  
  • How man copes with the cold  
  • Organisation of the measurement flights  
  • Flying conditions and risks during the expedition  
  • The measurement campaign  
  • Communications - Safety - Emergency assistance  
  • Earth observation satellites  
  • Our airship  
  • The earth's atmosphere  
  • Weather forecasting and modeling  
  • The climate and the north pole  
  • The solar energy balance  
  • The greenhouse effect  
  • The ice pack: frozen saltwater  
  • Icebergs : frozen seawater  
  • The arctic ice: climate archives  
  • Ice ages and landscapes  
  • The Arctic Ocean and the ocean currents  
  • Genesis of the arctic ocean  
  • Arctic plankton  
  • Oceanic biodiversity and the food chain  
  • Whales and other cetaceans  
  • Seals and walruses  
  • Arctic flora  
  • Arctic fauna  
  • Polar bears  
  • Birds of the arctic  
  • Evolution of species and climate  
  • Geography of the Arctic regions  
  • Geographic North Pole and magnetic North Pole  
  • Who owns the arctic?  
  • Exploring the deep north  
  • The Inuit people  
  • The other peoples of the deep North  
  • The Arctic today  
  • Man and arctic biodiversity  
  • Pollution in the arctic  
  • Climate warming: the natural cycles  
  • The increase in the greenhouse effect  
  • The impact of global warming  

An airship at the North Pole
Communications - Safety - Emergency assistance

Communications via Iridium
The geostationary satellites used for communication purposes (telephone, Internet, television) are placed in orbit over the equator and are not accessible from the poles. So in the polar regions, communication is via the low-speed (64 Kbit) Iridium satellite system. For meteorological transmissions we use an EADS

Distress beacons
For safety purposes, the airship carries a Sarsat distress beacon. If it is activated, the beacon sends out a distress signal giving the position of the airship. The signal is picked up by a monitoring satellite that relays the distress signal to the base camp. Telephone communication with the airship is always possible too.

Emergency assistance

In the area around the Geographic North Pole, emergency assistance can be provided by MI-8 helicopters based at Russia's Borneo station that is set up every year in April close to the Pole. In the area around the Magnetic North Pole, assistance can be provided by Twin Otter aircraft based at Resolute Bay (Canada), and in the event of an emergency in the Beaufort Sea Twin Otters can reach us from Inuvik on the Mackenzie River delta or from Prudhoe Bay in Alaska.

Satellite phones allow travellers to stay in touch even from the most remote regions.