Tag Archives: ASIRAS

Cryovex: Mowing the lawn in the Arctic

Today – Saturday 29 March had been seen as the most challenging day. We had prayed to the polar weather gods to bless us with good conditions for a survey of the sea ice in the region...

NASA IceBridge flies Greenland EGIG line for CryoSat

From Michael (NASA), Greenland, 26 April Today was our last opportunity to fly a science mission from Kangerlussuaq and the weather was favourable for Geikie 01, our last remaining high priority mission plan. We expected some clouds over the interior of the ice sheet and down in the fjords and had to abort our flight up Nansen Fjord and Christian Gletscher because of a 3000 ft clouds base and 13 000 ft terrain. Other than that, it was a perfect day. As the photo above shows, the razor sharp flood basalts of the Geikie Plateau are spectacular. After we had finished the glacier runs around the Geikie Plateau, we went up Daugaard...

Mapping sea ice up close with ASIRAS

From Malcolm (ESA), Alert, 16 April As an ESA campaign coordinator, I sometimes fly along with airborne scientists and observe how data are collected and how the different instruments on the plane are run. This part of my work has always been fascinating and of great value in understanding how to run campaigns together with participants. Today, I was a guest on the Norlandair Twin Otter at Alert, Canada, carrying the CryoSat airborne simulator ASIRAS. Its cramped interior is packed with instruments and, thankfully, the odd seat for the scientists operating the instruments. In the past few days, the ASIRAS team members – guided by their friendly and experienced scientist Henriette Skourup...

ASIRAS arrives in Alert

From Malcolm (ESA), in Alert, 13 April The whole team was more than pleased – relieved and happy might be the right description – to see Henriette and her team from the Danish Technical University arrive from Greenland today. Today’s arrival of the Nordlandair Twin Otter plane in Alert marks a new and crucial phase of the CryoSat campaign. The plane carries precious cargo: the ASIRAS radar instrument which – much as the CryoSat satellite does much higher up in its orbit about Earth – emits a series of radar pulses as the plane travels over the ice and snow  surfaces and very carefully records the faint return echo from the surface. ...