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). The 3 pictures have the same field of view and record the changes that occurred during the 63 years separating 1941 and 2004. The images below show Muir Glacier, also in southern Alaska, first in August 1941 (left) and again in August 2004 (right). 16.7k members in the the_meltdown community. The Riggs glacier is now disconnected to the Muir and has retreated by 0.25km. Thumbnail Medium Original. Detailed Description. She completed her PhD at the Université Libre de Bruxelles (ULB), Brussels, Belgium. July 30, 1909 and August 11, 2004. click image for more information. USGS Photo o Show More Show Less 6 of 7 USGS-01-Muir … 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). Mouse over the image to see the difference in the Muir Glacier between 1941 and 2004. Field, # F50-R29, courtesy of the Glacier Bay National Park and Preserve Archive. Between 1941 and 2004 the glacier retreated more than seven miles in distance and thinned by over 2625 feet by its thickness. Muir and Riggs Glaciers 1941-2004 The upper Muir Inlet in the east arm of Glacier Bay has been completely transformed in 60 years. Q18: How does the change in the Muir Glacier compare to changes in glaciers in the Alaska region as a whole? Selected Answer: a. global climate change Correct Answer: a. global climate change By 2004 (right), Muir Glacier had retreated 12 kilometers (7 miles) and thinned by more than 800 meters (2,600 feet). 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. Muir Glacier had been retreating since the mid-eighteenth century, with maximum retreat exceeding 50 kilometers. Photo 3: B. F. Molnia, USGS Photograph, Kim Weaver Glacier covers most of photo, no water visible. Muir Glacier and Inlet, 1890s – 2005. 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 … Muir and Riggs Glaciers filled Muir Inlet. Photographs of the Muir Glacier taken in 1941 and 2004 showing the retreat of the glacier. Muir Glacier, Alaska, in 1941 (left) and 2004 (right). Muir Glacier has undergone very rapid, well-documented retreat since its Little Ice Age maximum position at the mouth of Glacier Bay around 1780. Does anyone have a current photo taken at the same location? "Forty-six gigatons of ice from Alaskan glaciers was lost on average each year from 2003 to 2010" (Source). Three repeat photos of the Muir Glacier, Alaska taken on 13 August 1941, 4 August 1950 and 31 August 2004 . The séracs in the lower right-hand corner of the photograph mark Muir Glacier’s terminus. Muir Glacier in 1941 and 1950 However, it still is connected with tributary Riggs Glacier. In 1941 (left), Muir Glacier filled this valley in Glacier National Park and Preserve in Alaska. For nearly two centuries prior to 1941, Muir Glacier had been retreating. Alaska’s Muir Glacier, like many Alaskan glaciers, has retreated and thinned dramatically since the 19th century. Muir Glacier was more than 2,000 feet thick in 1941 (2004 USGS photograph by Bruce Molnia.) Photo 2 : W. O. Global warming causes sea level to rise in two ways. It was a tidewater glacier, meaning that it flowed out onto the ocean. This contrasting and disturbing image spoke louder than any words had ever spoken before about this issue. The once frozen Muir Glacier with snow-peaked mountains nearby in 1941 had turned into a lake having green trees around it by 2004. —Credit: Photographs by William Osgood Field (1941) and Bruce F. Molnia (2004). Image 2: Muir Glacier, Alaska in 1941. Today it is grounded and no longer touches the sea. 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). Unfortunately, Muir Glacier is rapidly receding. See the copyright page for more information. In 1941 (upper) the ice was about 1000m (3000 feet) deep, and 3 km (1.8 miles) wide. In the 1941, the terminus of the glacier is on the lower right corner of the photo. 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. Unless otherwise indicated, the content on this blog is licensed under the Creative Commons Attribution 4.0 International licence (CC BY 4.0). Unfortunately, Muir Glacier is rapidly receding. Muir Glacier has retreated 20 km (12 miles) between 1941 and 2004 (lower), and 45 km (28 miles) since 1899. Photo 1: W. O. Muir Glacier has retreated nearly 2 miles, exposing Muir Inlet, and thinned by more than 300 feet. 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. Pingback: 2.2 Hydrosphere/Cryosphere-Muir Alaskan 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. 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). – Environmental Science-1301-Krystal Rocha, Seafloor secrets: traces of the past Patagonian ice sheet. Muir Inlet, 1941-2004. August 13, 1941; August 4, 1950; and August 31, 2004. click image for more information. 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. The Muir is a valley glacier (Alaska) that has significantly retreated over the last 2 centuries. 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). 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. 9 • Melting glaciers, which supply drinking and irrigation water for hundreds of millions of people around the world, will be lost. Here, the latest fieldwork programmes, research projects or scientific results will be showcased by bloggers from the cryospheric community. Originally uploaded in Cutting Edge:Topics:Climate Change. Image 1: Muir Glacier, Alaska, 2004. The Columbia Glacier near Valdez in Prince William Sound has retreated 15 km (9.3 mi) in the last 25 years. Muir Glacier, Alaska, in 1880 (left) and 2005 (right). 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. Blue water in foreground, glacier in background, large amount of rock exposed. Ocean water has … 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. Did you know… that you can read the edge of Greenland’s ice as an open book? Between the 1890s and 2005, Muir retreated more than 30 miles, according to … Alaska. 33 shares Martynas Klimas . A place to share meltdowns from your friends, family, fellow Redditors … Such photographic evidence makes it hard to argue against climate change. Maximum retreat exceeded 50 kilometers (31 miles). Pendersen Glacier, Alaska. By 2004, the Muir glacier has retreated further inland and its terminus is no longer visible on the picture. In 1941 (upper) the ice was about 1000m (3000 feet) deep, and 3 km (1.8 miles) wide. In the 1941, the terminus of the glacier is on the lower right corner of the photo. This 1941 photograph shows the lower reaches of Muir Glacier, then a large, tidewater calving valley glacier, and its tributary, Riggs Glacier. Field), Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data. The Muir is a valley glacier (Alaska) that has significantly retreated over the last 2 centuries. Got wisdom to pour? 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. In places, a thickness of more than two-thirds of a mile of ice had been lost. 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. It shows the lower reaches of Muir Glacier, then a large, tidewater calving valley glacier and its tributary, Riggs Glacier. From 1941 to 2004, the glacier receded over 7 … 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. Required fields are marked *, You may use these HTML tags and attributes:
. Muir Glacier has retreated out of the field of view, Riggs Glacier has thinned and retreated significantly, and dense new vegetation has appeared. 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. Muir and Riggs Glaciers, Muir Inlet, Alaska - 1941 (Public domain.) How do the ups and downs of the solid Earth influence the future of the West Antarctic ice sheet? Muir Glacier, Alaska, August 13, 1941, photo by B.F. Molnia. Between the mid-1920s and early 1940s, and August 10, 2005. click image for more information. Be sure to catch Muir on your cruise through Glacier Bay! These photographs are from the National Snow and Ice Data Center's repeat photography project. Ocean water has … Carroll Glacier 1906 – 2004. Photographs of the Muir Glacier taken in 1941 and 2004 showing the retreat of the glacier. The ice thickness is more than 700 meters. For nearly two centuries before 1941, Muir Glacier had been retreating. Muir Glacier, Alaska, in 1880 (left) and 2005 (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. 9 • Melting glaciers, which supply drinking and irrigation water for hundreds of millions of people around the world, will be lost. 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, # 41-64, courtesy of the National Snow and Ice Data Center and Glacier Bay National Park and Preserve Archive. 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. The 3 pictures have the same field of view and record the changes that occurred during the 63 years separating 1941 and 2004. Vegetation has invaded the place. Iceberg Glacier ~1940 – 2008. Field, # 41-64, courtesy of the National Snow and Ice Data Center and Glacier Bay National Park and Preserve Archive. United States Geological Society (USGS) supported this account saying in 2012 that the Muir Glacier had melted more than 31 … Muir Glacier, Alaska. Muir Glacier has undergone very rapid, well-documented retreat since its maximum position at the mouth of Glacier Bay around 1780. The Muir is a valley glacier (Alaska) that has significantly retreated over the last 2 centuries. Between the 1890s and 2005, Muir retreated more than 30 miles, according to USGS. Image … 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. How small changes can make a big difference: tipping points in Antarctica, Running a live stream of proglacial processes. Muir and Riggs Glaciers, Alaska. 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. Muir Glacier has retreated 20 km (12 miles) between 1941 and 2004 (lower), and 45 km (28 miles) since 1899. 464 votes, 154 comments. Photo 1: W. O. All in all, Muir documented 65 such living glaciers … 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. Just under 90 miles from Juneau, Muir Glacier was a popular stop for many tourists in the late 19th century, and still is today. Image of The Week – The Pulsating Ice Sheet! The blog is currently run by Violaine Coulon and Marie Cavitte. 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). AS BG CL CR ESSI G GD GM GMPV HS NH NP OS SM SSP SSS ST TS. Note the absence of vegetation and the bare bedrock faces present on both sides of the glacier. The images below show Muir Glacier, also in southern Alaska, first in August 1941 (left) and again in August 2004 (right). 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, 2004. In places, more than a 1.0 kilometer (0.62 mile) thickness of ice had been lost. All in all, Muir documented 65 such living glaciers over … Creative Commons Attribution 4.0 International. These photographs are from the National Snow and Ice Data Center's repeat photography project. The 3 pictures have the same field of view and record the changes that occurred during the 63 years separating 1941 and 2004. From 1941 to 2004, the glacier receded over 7 … 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. It's always struck me as a bit ironic that Alaska, … Muir and his partner, Galen Clark, discovered that the Maclure Glacier was moving at an inch per day. Maps showing retreat of Muir Glacier from 1941 to 1982 There are thousands of glaciers in Alaska but only few have been named. Please get in touch with the editor, Violaine Coulon. McCarty Glacier, Alaska. Grinnell Glacier from Overlook 1940 – 2006. 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. In the 1941, the terminus of the glacier is on the lower right corner of the photo. Photo 2 : W. O. Field, # F50-R29, courtesy of the Glacier Bay National Park and Preserve Archive. 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. 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. Muir Glacier, in 1941, was drowning in heaps of white snow. Once the highlight attraction of Glacier Bay, the Muir Glacier filled the entire east arm of the bay. Photographs from the 1940s to the 2000s show the … USGS. (W.O. Are glaciers changing? Would you like to write a blog entry about your research? "Forty-six gigatons of ice from Alaskan glaciers was lost on average each year from 2003 to 2010" (Source). Education in glaciology: Witnessing the death of a glacier, 2.2 Hydrosphere/Cryosphere-Muir Alaskan Glacier. – Environmental Science-1301-Krystal Rocha, Your email address will not be published. Just under 90 miles from Juneau, Muir Glacier was a popular stop for many tourists in the late 19th century, and still is today. Credit: U.S. Geological Survey, Sophie Berger is a postdoc at the Alfred Wegener Institut, Germany. Welcome to the blog of the Cryospheric Sciences (CR) Division of the European Geosciences Union (EGU). June 24, 2019, 1:15 am. Muir Glacier, 1941. Be sure to catch Muir on your cruise through Glacier Bay! Muir Glacier, Alaska, in 1941 (left) and 2004 (right). Writes like a mad dervish, rolls to dodge responsibility, might have bitten the Moon once. 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. The once frozen Muir Glacier with snow-peaked mountains nearby in 1941 had turned into a lake having green trees around it by 2004. This August 1941 photograph is of Muir Glacier in Glacier Bay National Monument, Alaska. In places, more than a kilometer thickness of ice had been lost.
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