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Waiting for clear weather

January 19, 2010

A moment of sunshine reveals the landscape of the western Antarctic Peninsula

Ted writes: The N.B. Palmer now sits off the west coast of the Antarctic Peninsula. We are waiting for clear conditions to install the AMIGOS stations and other instruments. Most of the time the landscape invisible with drizzle, snow flurries, and fog. It’s quite amazing when the fog lifts momentarily to reveal an astoundingly stark and majestic setting. We are typically cruising in fjords with 1000-foot cliffs, ridges, and glaciers surrounding us.

Almost as soon as we arrived, we saw the closest thing to a break in the clouds. Marin and Erin set up a flight to recon the AMIGOS and UNAVCO GPS sites, and from this side it looked like a “go.” As we watched from below, the helo took off, heading for the glacier pass to the eastern side of the peninsula, and then slowed,hovered, and moved in sequence to each of the valleys, peering at the ridge crest. Within 20 minutes they were back. The entire eastern side was clouded, with no breaks at all.

We are continuing to improve the software and integrate the newest sensor on the AMIGOS, a precision GPS sensor (centimeter to millimeter level positioning) incorporated into a single electronic board (built by TopCon, Inc., a new system called GRS-1). Ronald and Terry have most of the AMIGOS brains–the white boxes that contain their electronics–out in the workspace on the first deck of the ship. Ronald and Terry are re-writing the code that they will run when we install them to maximize data collection and power/upload efficiency.

We await clear weather…in one of the cloudiest places on Earth.

Patience.

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