pressure ridge


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pressure ridge

[′presh·ər ‚rij]
(geology)
A seismic feature resulting from transverse pressure and shortening of the land surface.
An elongate upward movement of the congealing crust of a lava flow.
A ridge of glacier ice.
(oceanography)
A ridge or wall of hummocks where one ice floe has been pressed against another.
References in periodicals archive ?
The reductions in sea ice and increase in snowfall have the effect of damping the climatological pressure ridge structure over China," Wang explains.
Every time we neared a climbable pressure ridge, he would stop to glass, scanning the ahead.
The National Weather Service reported 17 daily heat records were broken in Southern California on Sunday, because of a high pressure ridge over the Four Corners region of the Southwest.
Right now, my research team is looking at what size pressure ridge should we consider?
A high pressure ridge is going to cause the weather to fine up in Tasmania and Victoria on Jan 1.
A cold front is by definition the estimated position of the interactive zone between a low pressure col and a high pressure ridge behind it.
When we came to a pressure ridge we unhooked the dogs and portaged the sled over the treacherous ice chunks.
Earlier the same day both had taken dramatic falls, with 33-year-old Parks ending up "dazed" after he slipped on another pressure ridge and was hit on the head by his 50kg sleigh.
On several occasions the sleds actually left the ground as they hurtled back down the other side of a pressure ridge before crashing into the next wall of ice.
Efforts to secure a hovercraft barge to cut a channel for the whales were stymied by technical problems and an impregnable 30-foot-high pressure ridge.
The high pressure ridge coming in from the Southwest states will change that, the National Weather Service said, driving some smoke into the valley Saturday through Tuesday, and bringing highs of 89, 96, 95 and 87, respectively, on those days.
A high pressure ridge off the West Coast (typical of historic droughts) prevailed for three winters, blocking important wet season storms, with ocean surface temperature patterns making such a ridge much more likely.