PPT-The impact of retreating glaciers on water

supply Dennis P Lettenmaier Department of Geography University of California Los Angeles CASNASA Workshop on the use of earth observations to address glacier change and associated hazards. Laura Allen | Research Output 2 | Retreating Village Image 7 (above)Tractors and haulage machinery now abandoned on the cliff top since the erosion overnight of Cart Gap.Image 8 (below)Medieval ྰ Efficiency of Iterative Algorithms. Reducible Flow Graphs. Jeffrey D. Ullman. Stanford University. Flow Graph Theory. 2. Roadmap. Proper ordering of nodes of a flow graph speeds up the iterative algorithms: “. CGC 1D1. What are Glaciers? . Glaciers . are . huge masses of ice, formed on land by the compaction and re-crystallization of snow, that move very slowly down slopes, or move outward due to their own weight. 5.7B. Thinking About Glaciers. Glaciers cover about one-tenth of the Earth’s surface. Most of the fresh water found on the Earth is frozen in glaciers.. Glaciers move very slowly and can cause very slow changes to the Earth’s surface.. Prairie School. Earth Science. Glaciers: Moving Ice. When you take a handful of snow and squeeze it, you are creating a product that is similar to that of glaciers. . Glacier: fast moving, large mass of ice. . Do Now:. The material seen below was left behind by a retreating glacier. Describe the sediments seen in the picture. . . Tasman Glacial Moraine, New Zealand. Formed from the accumulation of ice and snow over thousands of years. . More winter snowfall than summer melt. Glacier formation is similar to sedimentary rock formation. Types of Glaciers. Valley glaciers or alpine glaciation. Ice sheets or continental glaciation. Glaciers of the world. Glacier Movement. Deposits by Glaciers. The Ice Age. Glaciers and Global Warming. Glacial Rebound . …………………. Snow. Line. …………………... Glaciers form in areas covered by snow, where more snow falls than melts each year.. Glacier – thick ice mass that forms over hundreds or thousands of years.. 15, 000 years ago > 30 % coverage - Today 10 % coverage. Valley Glaciers. Ice Sheets. Types of Glaciers. Valley Glaciers. Kelly Cronin, Beth . Stricker. , Richard . Kissel. , Rob Ross, Cassie Mundt. cronin@museumoftheearth.org. Paleontological Research Institution and its Museum of the Earth. Pic of current exhibit. A Visitor Survey. Taku Glacier 2 Calculate the gradient of the Taku Glacier from 1000 ft It originates on land from the accumulation, compaction, and . recrystallization. of snow. .. A glacier appears to be motionless, but glaciers move very slowly.. Glaciers are dynamic weathering . and erosional . Section. for . glaciers. , . snow. and . ice. Norwegian. Water Resources and Energy . Directorate. . lma@nve.no. Glaciers in Norway . are. . changing. . too. ~1900: . Library. . of. . congress. An Inquiry into “Snowball Earth”. Chris . Rackauckas. Advisor: Jim . Walsh. What is the nature of this glaciation?. Did the glaciers reach the equator or simply stop near the equator?. VS. Snowball Earth.