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. GLACIERS OF GLACIERS OF SWEDEN By VALTER SCHYTT 1 2 Abstract The most recent glacier inventory lists a total glacier area for Sweden of 314 square kilometers. The first glaciological were made in 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. 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. . another.. 2 . kinds:. 1) . Rill erosion. is the erosion by running water in small channels. , on the side of a slope.. 2) . Gully erosion. is when a rill channel evolves to become deep and wide.. 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. Chapter 9 - Section 3, 4, 5, and 6. How Water Erodes. Most sediment washes or falls into a river as a result of mass movement and runoff. Other sediment erodes from the bottom or sides of the river. Streams carry sediment in several . Glaciers. Earthquakes. Rivers. GEOL 131:Running Water. GEOL 131:Running Water. GEOL 131:Running Water. Precipitation and snowmelt can:. Infiltrate . absorbed into ground. becomes part of groundwater. Taku Glacier 2 Calculate the gradient of the Taku Glacier from 1000 ft 2. Rocks & Landforms. 3 influences. Crust movement = Landform creation (endogenic). Rock movement. Reactions to crustal stresses. Weak (greatly affected by weathering & erosion). Strong (less affected by weathering & erosion). 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. 4-Seppanen . October 24. th. , 2017. Photo courtesy of Alaska.gov. How Glaciers are Formed. Glaciers are formed with snow that doesn’t melt. When snow builds up on itself the snow will build up weight and will compress and turn into ice..