Tag Archives: sea-ice

First CryoSat underflight – a perspective from the Twin...

From Rene Forsberg (DTU-Space), Alert, 1 April The ESA Norlandair Twin-Otter, which we are responsible for during the ESA CryoVEx campaign, is equipped with a CryoSat-like radar called ASIRAS and a laser scanner. Last Thursday, we flew over the Arctic sea-ice on a 5-hr  mission starting from our Alert home base at the northern tip of Canada. By taking off quickly early in the crisp cold Arctic morning we reached the CryoSat track at about 8:25 local time, which is within two minutes of the overhead pass of CryoSat satellite more than 600 km above.  That morning the NASA IceBridge P-3 aircraft also underflew the same track, six minutes ahead of our...

Great day for sea-ice research as ESA and NASA work tog...

From Michael (NASA), over Alert, 15 April Today’s flight was a coordinated effort between ESA’s CryoVEx campaign and NASA’s Operation IceBridge. The CryoVEx 2011 teams are currently operating from Canadian Forces Station (CFS) Alert and have installed corner reflectors and GPS buoys on the sea ice north of Alert yesterday using a Kenn Borek Twin Otter. Today and tomorrow, teams from the University College London and the University of Alberta are on the ice making in situ measurements along the profiles between the corner reflectors. Campaign corner reflector from NASA plane (credits: NASA/Digital Mapping System) A DC-3/BT-67 Basler from the Alfred Wegener Institute in Germany participates in the experiment with a towed EM-bird...