Photo 3: B. F. Molnia, USGS Photograph, Kim Weaver In places, more than a 1.0 kilometer (0.62 mile) thickness of ice had been lost. Muir Glacier has retreated 20 km (12 miles) between 1941 and 2004 (lower), and 45 km (28 miles) since 1899. From 1941 to 2004, the front of the glacier moved back about seven miles while its thickness decreased by more than 2,625 feet, according to the National Snow and Ice Data Center. The images below show Muir Glacier, also in southern Alaska, first in August 1941 (left) and again in August 2004 (right). —Credit: Photographs by William Osgood Field (1941) and Bruce F. Molnia (2004). Muir Glacier, 2004. Got wisdom to pour? Selected Answer: d. estuary Correct Answer: d. estuary Question 7 4 out of 4 points The photos of the Muir Glacier taken in 1941 (left) and 2004 (right) demonstrate the consequences of____. Field), Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data. Unless otherwise indicated, the content on this blog is licensed under the Creative Commons Attribution 4.0 International licence (CC BY 4.0). Muir Glacier has retreated nearly 2 miles, exposing Muir Inlet, and thinned by more than 300 feet. For Muir, the movement of glaciers represented a key indicator of their status as what he called “living glaciers”, as detractors like Whitney routinely argued that Muir was confusing the presence of unmelted snowfields leftover from the winter for glaciers. Muir Glacier, Alaska, August 13, 1941, photo by B.F. Molnia. Originally uploaded in Cutting Edge:Topics:Climate Change. Photographs of the Muir Glacier taken in 1941 and 2004 showing the retreat of the glacier. Shown above is an image taken of the Muir glacier in Alaska in the year 1941, followed by an image of the glacier taken in 2004. However, it still is connected with tributary Riggs Glacier. Here is a photo of Alaska's Muir Glacier, pictured in August 1941 (left) and August 2004 (right). This contrasting and disturbing image spoke louder than any words had ever spoken before about this issue. From 1941 to 2004, the glacier receded over 7 … Muir Glacier has undergone very rapid, well-documented retreat since its maximum position at the mouth of Glacier Bay around 1780. Muir Glacier, Alaska, in 1941 (left) and 2004 (right). Muir and Riggs Glaciers 1941-2004 The upper Muir Inlet in the east arm of Glacier Bay has been completely transformed in 60 years. Muir Glacier has retreated 20 km (12 miles) between 1941 and 2004 (lower), and 45 km (28 miles) since 1899. Between the mid-1920s and early 1940s, and August 10, 2005. click image for more information. Pendersen Glacier, Alaska. The Muir is a valley glacier (Alaska) that has significantly retreated over the last 2 centuries. See the copyright page for more information. It's always struck me as a bit ironic that Alaska, … Field, # 41-64, courtesy of the National Snow and Ice Data Center and Glacier Bay National Park and Preserve Archive. Photographs from the 1940s to the 2000s show the … The Columbia Glacier near Valdez in Prince William Sound has retreated 15 km (9.3 mi) in the last 25 years. August 13, 1941; August 4, 1950; and August 31, 2004. click image for more information. Maps showing retreat of Muir Glacier from 1941 to 1982 There are thousands of glaciers in Alaska but only few have been named. Here, the latest fieldwork programmes, research projects or scientific results will be showcased by bloggers from the cryospheric community. 16.7k members in the the_meltdown community. Global warming causes sea level to rise in two ways. The 3 pictures have the same field of view and record the changes that occurred during the 63 years separating 1941 and 2004. Three repeat photos of the Muir Glacier, Alaska taken on 13 August 1941, 4 August 1950 and 31 August 2004 . Blue water in foreground, glacier in background, large amount of rock exposed. AS BG CL CR ESSI G GD GM GMPV HS NH NP OS SM SSP SSS ST TS. Muir Glacier in Alaska, as seen in 1941 and 2004 Credit: Photo courtesy of William Field (1941) and Bruce Molnia (2004) and the National Snow and Ice Data Center , University of Colorado, Boulder. Field, # 41-64, courtesy of the National Snow and Ice Data Center and Glacier Bay National Park and Preserve Archive. The once frozen Muir Glacier with snow-peaked mountains nearby in 1941 had turned into a lake having green trees around it by 2004. The séracs in the lower right-hand corner of the photograph mark Muir Glacier’s terminus. 9 • Melting glaciers, which supply drinking and irrigation water for hundreds of millions of people around the world, will be lost. These photographs are from the National Snow and Ice Data Center's repeat photography project. Carroll Glacier 1906 – 2004. While historical photos like these show change over many decades, satellites are giving us a better understanding of how Earth’s ice cover has changed in the more recent past. This August 1941 photograph is of Muir Glacier in Glacier Bay National Monument, Alaska. She tweets as, Cryospheric Sciences | Image of the Week : 63 years of the Muir Glacier’s retreat, The photo comes from and the text is inspired from the section “Repeat photography of the Alaskan Glaciers” on. The Riggs glacier is now disconnected to the Muir and has retreated by 0.25km. USGS Photo o Show More Show Less 6 of 7 USGS-01-Muir … Unfortunately, Muir Glacier is rapidly receding. McCarty Glacier, Alaska. Muir Glacier, Alaska, in 1880 (left) and 2005 (right). Alaska’s Muir Glacier, like many Alaskan glaciers, has retreated and thinned dramatically since the 19th century. Vegetation has invaded the place. Alaska. Muir Glacier had been retreating since the mid-eighteenth century, with maximum retreat exceeding 50 kilometers. This northeast-looking photograph, on the southeastern side of White Thunder Ridge ,shows the lower reaches of Muir Glacier, then a large tidewater calving valley glacier, and its tributary Riggs Glacier. Education in glaciology: Witnessing the death of a glacier, 2.2 Hydrosphere/Cryosphere-Muir Alaskan Glacier. In 1941 (upper) the ice was about 1000m (3000 feet) deep, and 3 km (1.8 miles) wide. In 1941 (upper) the ice was about 1000m (3000 feet) deep, and 3 km (1.8 miles) wide. Pingback: 2.2 Hydrosphere/Cryosphere-Muir Alaskan Glacier. Be sure to catch Muir on your cruise through Glacier Bay! Muir Glacier, 1941. Muir Glacier has undergone very rapid, well-documented retreat since its Little Ice Age maximum position at the mouth of Glacier Bay around 1780. Muir Glacier and Inlet (1950) This photo from August 1950 is the first of two repeat photos to document the significant changes in the 9 years since the 1941 shot. Muir Glacier, Alaska, in 1880 (left) and 2005 (right). 33 shares Martynas Klimas . Such photographic evidence makes it hard to argue against climate change. In 1794, the explorer Captain George Vancouver found that most of Glacier Bay was covered by an enormous ice sheet, some 1,200 meters (3,900 ft) in places. The Muir is a valley glacier (Alaska) that has significantly retreated over the last 2 centuries. Thumbnail Medium Original. July 30, 1909 and August 11, 2004. click image for more information. June 24, 2019, 1:15 am. Muir Glacier has retreated out of the field of view, Riggs Glacier has thinned and retreated significantly, and dense new vegetation has appeared. The 3 pictures have the same field of view and record the changes that occurred during the 63 years separating 1941 and 2004. Just under 90 miles from Juneau, Muir Glacier was a popular stop for many tourists in the late 19th century, and still is today. The once frozen Muir Glacier with snow-peaked mountains nearby in 1941 had turned into a lake having green trees around it by 2004. Ocean water has … Just under 90 miles from Juneau, Muir Glacier was a popular stop for many tourists in the late 19th century, and still is today. 9 years later, in 1950, the Muir Glacier has retreated by more than 3 km, is more than 100m thinner but is still connected to Riggs Glacier. Image … Between the 1890s and 2005, Muir retreated more than 30 miles, according to … Photo 1: W. O. 15 Muir Glacier, Alaska (August 1941/August 2004) While comparing the two photos of the Muir Glacier in Alaska, there has been an appalling transformation of the landscape within the past nineteen years. Welcome to the blog of the Cryospheric Sciences (CR) Division of the European Geosciences Union (EGU). First, over the last 50 years, the oceans have absorbed more than 90 percent of the heat that has been added to the climate system due to the build-up of heat-trapping gases. Between 1941 (left) and 2004 (right), the Muir Glacier in Alaska retreated more than twelve kilometers (seven miles) and thinned by over 800 meters (2625 feet). A place to share meltdowns from your friends, family, fellow Redditors … Between 1941 (left) and 2004 (right), the Muir Glacier in Alaska retreated more than twelve kilometers (seven miles) and thinned by over 800 meters (2625 feet). Muir and his partner, Galen Clark, discovered that the Maclure Glacier was moving at an inch per day. The photo comes from and the text is inspired from the section “Repeat photography of the Alaskan Glaciers” on U.S. Geological Survey website. Muir Glacier, 1941 Muir Glacier, 2004 It's always struck me as a bit ironic that Alaska, home to several of the most famous gubernatorial climate skeptics (including Sarah Palin) is … United States Geological Society (USGS) supported this account saying in 2012 that the Muir Glacier had melted more than 31 … Ocean water has … 9 • Melting glaciers, which supply drinking and irrigation water for hundreds of millions of people around the world, will be lost. Glacier covers most of photo, no water visible. Credit: U.S. Geological Survey, Sophie Berger is a postdoc at the Alfred Wegener Institut, Germany. Unfortunately, Muir Glacier is rapidly receding. The 3 pictures have the same field of view and record the changes that occurred during the 63 years separating 1941 and 2004. Please get in touch with the editor, Violaine Coulon. 1941-2004 comparison: Glacier Bay National Park and Reserve's White Thunder Ridge as seen on August 13, 1941 (left) and August 31, 2004 (right). Iceberg Glacier ~1940 – 2008. This 1941 photograph shows the lower reaches of Muir Glacier, then a large, tidewater calving valley glacier, and its tributary, Riggs Glacier. Muir Glacier, Alaska, in 1941 (left) and 2004 (right). Note the absence of vegetation and the bare bedrock faces present on both sides of the glacier. Muir and Riggs Glaciers, Alaska. USGS. Field, # F50-R29, courtesy of the Glacier Bay National Park and Preserve Archive. The Muir is a valley glacier (Alaska) that has significantly retreated over the last 2 centuries. The ice thickness is more than 700 meters. The images below show Muir Glacier, also in southern Alaska, first in August 1941 (left) and again in August 2004 (right). "Forty-six gigatons of ice from Alaskan glaciers was lost on average each year from 2003 to 2010" (Source). Muir and his partner, Galen Clark, discovered that the Maclure Glacier was moving at an inch per day. 1941 to 2004 comparison: Glacier Bay National Park and Preserve's White Thunder Ridge as seen on August 13, 1941 (left) and August 31, 2004 (right). Mouse over the image to see the difference in the Muir Glacier between 1941 and 2004. These photographs are from the National Snow and Ice Data Center's repeat photography project. By 2004, the Muir glacier has retreated further inland and its terminus is no longer visible on the picture. – Environmental Science-1301-Krystal Rocha, Seafloor secrets: traces of the past Patagonian ice sheet. From 1941 to 2004, the glacier receded over 7 … Muir Glacier, Alaska. Detailed Description. Grinnell Glacier from Overlook 1940 – 2006. For nearly two centuries prior to 1941, Muir Glacier had been retreating. For Muir, the movement of glaciers represented a key indicator of their status as what he called “living glaciers”, as detractors like Whitney routinely argued that Muir was confusing the presence of unmelted snowfields leftover from the winter for glaciers. This contrasting and disturbing image spoke louder than any words had ever spoken before about this issue. (W.O. Does anyone have a current photo taken at the same location? She completed her PhD at the Université Libre de Bruxelles (ULB), Brussels, Belgium. Image of The Week – The Pulsating Ice Sheet! Once the highlight attraction of Glacier Bay, the Muir Glacier filled the entire east arm of the bay. Required fields are marked *, You may use these HTML tags and attributes:
. Are glaciers changing? How do the ups and downs of the solid Earth influence the future of the West Antarctic ice sheet? It was a tidewater glacier, meaning that it flowed out onto the ocean. "Forty-six gigatons of ice from Alaskan glaciers was lost on average each year from 2003 to 2010" (Source). Muir and Riggs Glaciers, Muir Inlet, Alaska - 1941 (Public domain.) The aim of the blog is to get you, the reader, excited about all things related to ice, whether it be the tiniest ice crystals, snow drifts, beautiful mountain glaciers or the vast polar ice sheets. The glacier has gone through a rapid retreat since its maximum position at the mouth of Glacier Bay in 1780, scaling back more than 12km between 1941 and 2004 alone. Q18: How does the change in the Muir Glacier compare to changes in glaciers in the Alaska region as a whole? 464 votes, 154 comments. Between 1941 and 2004 the glacier retreated more than seven miles in distance and thinned by over 2625 feet by its thickness. Photographs of the Muir Glacier taken in 1941 and 2004 showing the retreat of the glacier. Photo 2 : W. O. Muir Glacier was more than 2,000 feet thick in 1941 (2004 USGS photograph by Bruce Molnia.) The Muir is then a tidewater glacier up to 700m thick and is well connected to its tributary, the Riggs Glacier (upper right part of the photo). All glacier images are all from Alaska, U.S. and were published by the National Snow and Ice Data Center - World Data Center for Glaciology (www.nsidc.org) Page numbers listed above correspond to the numbers on the following pages. Image 1: Muir Glacier, Alaska, 2004. Did you know… that you can read the edge of Greenland’s ice as an open book? In places, more than a kilometer thickness of ice had been lost. According to a 1914 book from the National Geographic Society, the Muir Glacier was 25 to 40 miles further south in 1794 than the early 1900s. Muir Glacier in 1941 and 1950 Maximum retreat exceeded 50 kilometers (31 miles). Between the 1890s and 2005, Muir retreated more than 30 miles, according to USGS. Muir Glacier, in 1941, was drowning in heaps of white snow. In 1941 (left), Muir Glacier filled this valley in Glacier National Park and Preserve in Alaska. Photo 1: W. O. Field, # F50-R29, courtesy of the Glacier Bay National Park and Preserve Archive. All in all, Muir documented 65 such living glaciers over … – Environmental Science-1301-Krystal Rocha, Your email address will not be published. Muir Glacier and Inlet, 1890s – 2005. In places, a thickness of more than two-thirds of a mile of ice had been lost. Click on thumbnail on the left below to view the Muir Glacier in Google Earth and click on the thumbnail on the right below to see how Muir Glacier changed from 1941 to 2014. In the 1941, the terminus of the glacier is on the lower right corner of the photo. For nearly two centuries before 1941, Muir Glacier had been retreating. Muir and Riggs Glaciers filled Muir Inlet. Would you like to write a blog entry about your research? How small changes can make a big difference: tipping points in Antarctica, Running a live stream of proglacial processes. Creative Commons Attribution 4.0 International. Writes like a mad dervish, rolls to dodge responsibility, might have bitten the Moon once. Image 2: Muir Glacier, Alaska in 1941. Back in 1925 Glacier Bay National Monument was established, in part, to protect "a number of tidewater glaciers ... in a magnificent setting of lofty peaks ..." Well, as these photos of Muir Glacier in Glacier Bay National Park and Preserve show, some of those glaciers are slip-sliding away. It shows the lower reaches of Muir Glacier, then a large, tidewater calving valley glacier and its tributary, Riggs Glacier. All in all, Muir documented 65 such living glaciers … She is using various remote sensing data and techniques to investigate the dynamics and stability of the ice shelves in Dronning Maud Land (East Antarctica). Muir Inlet, 1941-2004. The blog is currently run by Violaine Coulon and Marie Cavitte. Be sure to catch Muir on your cruise through Glacier Bay! Selected Answer: a. global climate change Correct Answer: a. global climate change This northeast-looking photograph, on the southeastern side of White Thunder Ridge ,shows the lower reaches of Muir Glacier, then a large tidewater calving valley glacier, and its tributary Riggs Glacier. Muir and Riggs Glaciers 1941-2004 The upper Muir Inlet in the east arm of Glacier Bay has been completely transformed in 60 years. Photo 2 : W. O. Today it is grounded and no longer touches the sea. By 2004 (right), Muir Glacier had retreated 12 kilometers (7 miles) and thinned by more than 800 meters (2,600 feet). In the 1941, the terminus of the glacier is on the lower right corner of the photo. In the 1941, the terminus of the glacier is on the lower right corner of the photo.