Our results show that the interactions between the rough surface scattering and reflection by layering can give large fourth Stokes parameter, and the large dips in the vertical and horizontal polarizations presented in the previous
Sastrugi structure [5], are not seen in the two-layer
Sastrugi structure.
In any case, every day we hike nine wildly strenuous miles across knee-high
sastrugi and mud-sucking beaches, to look for dinosaur bones, and I can't drink at night and get through those hikes.
"That's the kind of stress you experience when you walk on snow and
sastrugi (eroded snow)," he informed, adding jocularly.
Like Peary, we were able to maintain our course by traveling with sun, shadow, wind direction, and
sastrugi (sharp irregular grooves or ridges formed on a snow surface by wind erosion and deposition)--and by checking our compasses in overcast or snowy conditions.
Windcarved snow ridges, called
sastrugi, can create challenging obstacles.
Fierce winds had sculpted the hard-packed snow into a bewitching variety of
sastrugi, shapes unlike anything you see in stone, dirt, or mud.
We skied over the sea ice, bridged the leads and clambered over the
sastrugi, and my arrogance and incompetence lost me a finger-end to frostbite.
SASTRUGIZED of a snow surface formed into
SASTRUGI, ridges of snow hardened by wind
The harsh weather created hundreds of
sastrugi - waves of ice as large as hills - that he had to climb over.
"We are currently in
sastrugi fields, where the ice is frozen into huge sharp ridges like a rough sea, so we have to weave in and out of the waves of ice."
Kay and her fellow adventurers will have to negotiate
sastrugi, the ridges of wind-blown snow that are several feet high, before they reach the Geographic South Pole, perched on top of 10,000ft of ice.
Poor visibility all morning, ploughing through snow and tripping over
sastrugi [wavey ridge of frozen snow].