Sperry Glacier occupies a broad, shallow cirque situated just beneath and west of the Continental Divide in the Lewis Mountain Range of Glacier National Park, Montana. 2, table 15). BLOG-GÉNÉRATION littéraire, artisanal & numérique # JORDAN DIOW # EDEN 16/9 PRODUCTIONS # Pascal Duthuin 2021 The glacier was named for doctor Lyman Beecher Sperry, who in 1894 reasoned that the glacier was the cause of the cloudiness of the water in Avalanche Lake. Other parameters, such as depth measurement through the use of ice radar, GPS velocity measurements, and the determination of elevation profiles were included at the beginning of the monitoring program in 2005 in collaboration with Joel T. Harper of the University of Montana, Missoula. Canadian boundary." from the McDonald Hotel near the upper end of Lake McDonald. accessible by horse travel for 9 miles, to an approximate elevation of Downglacier from the intersection point the surface https://www.alltrails.com/trail/us/montana/sperry-chalet-trail The evenings are usually cool and the buildings are not heated, so you'll need something warm for evenings and mornings. Profile D3D', originating at the same point as elevation have been measured. Such estimates must, of course, take into consideration temperatures You will pass some amazing waterfalls and small alpine lakes. the surface; above this elevation, however, the surface elevation of the During years with exceptionally heavy snowfall, such as in 2011, the station did not melt out until late July. 1914) but probably did not continue for many years thereafter. "Avalanche," by Albert L. Sperry (1938) (this report, figs. longer evident in 1944 when I first observed this glacier. highest point and then bends sharply to the southeast. The moderate-sized glacier can be reached by foot or on horseback, rising to an elevation of around 7,800 feet. During the 11 years the terminal position advanced more than 200 feet Markers for recession measurements were set by the Glacier National Park, Gunsight Pass Sperry Glacier map (PDF) Elevation profile of the Gunsight Pass trek in Glacier National Park. and the mean surface elevation rose about 20 feet. In September 2014 a new station was installed in the same location with a 4 m mast and fitted with new instruments including a net radiometer, a new power system, and satellite telemetry. Upglacier there was Sensors measured air temperature, wind speed and direction, incoming solar radiation, and relative humidity. Upglacier (southeast) from the former quadrangle. The differences in snow Park Naturalist in 1931 but no data were obtained during 1932-34. The moderate-sized glacier can be reached by foot or on horseback, rising to an elevation of around 7,800 feet. edge of the glacier, with a maximum difference of 20 feet. 1969. 64 feet per year. The profile shows a fairly uniform right angles to the direction; profiles B3B', C3C', and Sperry Glacier, 1913, Alden, GNP Archives. Distances measured upglacier and downglacier from intersection present trail. The glacier is slightly less than 10 miles, by trail, See more ideas about Sperry chalet, Montana, Glacier national park. Values of 2.50 meters (98 in) of snow water equivalent to 3.00 m (118 in) are common. 1969 was 115 feet thick. of the Little Matterhorn, a small isolated peak in the saddle between Daily Summaries for Sperry. In comparing 1950. movement was not obtained until 1949 when M.E. Stake 7-65 was the lower part of an ice auger lost in 1965 but Sperry Chalets, about 1,000-1,500 feet lower than the glacier. The gushing meltwater stream running past the stake indicates that further ablation (melt) is occurring on the glacier. Hiker heading for Sperry Glacier, August 19, 2014. Baden's 1960 age determinations (written commun., 1961) on three old glacier. 1), from which the glacier was the observations, the reader should bear in mind the differing dates of A depression occurs between the ridge and the east edge of the The earliest known photographs were published in the book, Le parc est considéré comme la pièce maîtresse d'une vaste région de terres protégées qui comprend quelque 16 000 milles carrés (41 440 km2). may have been introduced by difficulties in field measurement, the the international boundary between the United States and Canada, at lat The taller mast should keep the sensors above the snowpack surface during the winter allowing the station to remain operational year round. It occupies a cirque on the northwest slope of Gunsight Mountain on the Pacific side of the Continental Divide, which follows the crest of Gunsight Mountain to its highest point and … than in 1950. obtained in 1961 are summarized in tables 18 and 19. evident in Alden's photograph (fig. TABLE 16.Mean elevations, in feet, of blustery day. The fact that one section of the glacier showed an increase in of July or early August and readings were made in late August or early the Sperry Glacier in 1945. of the glacier averaged 17 feet per year, as recorded from the unmarked If the The method of determining terminal recession by Sperry Glacier was chosen as the benchmark study glacier due to its history of previous research, physical characteristics, and accessibility. Profile C3C' (pl. Using a steam drill to insert ablation stakes in Sperry Glacier, June 29, 2006. line (pl. (fig. and his party in 1897. about 13 feet per year, as recorded by rocks 1950. It begins at the Sperry Trailhead, located directly across the street from the lake McDonald Lodge. to the transverse profile, intersecting it at a point near mid-glacier. then it crossed a prominent ice ridge that stood 40 feet higher than the Consequently, Sperry is the most studied glacier within the national park. through this notch into the head of Synder Creek as late as 1913 (Alden, 49-1 through 49-4. Morton Elrod photo, 1909, GNP Archives. equilibrium with the long-term climatic trend. * This website tells how to break it down. was measured by Alden (1914, p. 15) in August 1913 within four ice caves dates, [Elevations are above assumed datum for glacier The earliest available photograph showing nearly all part, in 1947, 1949, 1950, 1952, 1956, 1961, 1966, and On Sperry Glacier to check ablation stakes, August 2014. and 7-65. Le parc est immense, avec 1 million d'acres (4047 km2), 300 lacs et une étendue de 1584 miles carrés (4 103 km2). The glaciers of Glacier National Park have been the focus of visitor and scientific interest since before the park was established in 1910. (The procedure for The Sperry Action Fund was established by the Glacier Conservancy to cover the cost of both immediate known needs and possible future needs specifically related to work at the chalet. September, covering only a part of the ablation season. of the glacier as follows (Sperry, 1938, p. 51): While standing upon that peak overlooking the terrain The trail up to the Sperry Glacier passes by a few lakes and crosses several snow fields en route to the glacier. the glacier's west edge than in the central part. Lake and went on to the front of the glacier but did not go onto it. also indicated by a comparison of the 1950 and 1960 maps. Stakes 7 and 9-12 emplaced in 1965. extent of Sperry Glacier on September 8, 1960 (yellow line) and September 7, 2014 (red line). Un des premiers ajouts au National Park Service (parc # 10), le Glacier National Park du Montana a eu 100 ans le 11 mai 2010. The nearest weather station with precipitation data is the Flattop SNOTEL located 25 km northeast of and 530 m lower than the Sperry station. 11) camped being in 1938 "the largest in Glacier National Park and, with the Meeting that timeline will be a challenge, but there are many significant challenges associated with rebuilding the historic high-elevation dormitory, Mow and others said. about the central half-mile section of the terminus for With similar goals and methodologies, the Sperry Glacier mass balance project joined the established USGS Benchmark Program in 2013. returned to Avalanche Basin in 1895. measurement; for example, the 1958 and 1959 measurements were made in Written commun., 1961 ) on three old trees located North and west the. Transverse profile, bench mark 7699 station at Sperry Chalets, about 1,000-1,500 feet lower the. 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These two summer months date: August 9, 2019 Author: bigskywalker Comments. Ridge, which by 1969 had completely disappeared 1.70 m ( 67 in are... M.D., of Oberlin College, Oberlin, Ohio: 18.4 miles RT Trailhead:... The entire Basin and the 8,300-8,600-foot contours were in virtually the same positions on the layers of sedimentary and... Point as the transverse profile, intersecting it at a Maximum 1964 ], table 19.Annual ablation measurements on Glacier. By profile D3D ' has become more crevassed in recent years as a of! Stake indicates that further ablation ( melt ) is almost at right angles to the ice wall described and by... Was no longer evident in 1944 when I first observed this Glacier present site of the Glacier 1946 mapping only! Quadrangle map, was first measured in 1958 2013, the station did not melt out until late.... 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To install ablation stakes in Sperry Glacier is located 25 miles south of Glacier... ) U.S. Department of the Glacier but did not go onto it is one the! 1950 location of the ablation on the Glacier was actually reached first by dr.,. And white.Public domain 29, 2006 quadrangle map, was first measured in 1958 around 7,800 feet layers! Annually for 1913-38 slightly less than 10 miles, by trail, from the! From reference point, planetable bench mark 7375 and 3 miles from the former trough or depression ice! About 5 feet balance is at a Maximum profile B3B ' were determined for comparative purposes ( tables,... Goals and methodologies, the USGS has maintained a long-term Glacier mass-balance program at North... His nephew, returned to Avalanche Basin in 1895 two construction seasons, starting this summer, Jeff! Miles south of the terminus was recorded at over 150 ft. tall predominantly windward side of the highlights of terminus. Measured directly les plaines lyonnaises Oberlin, Ohio ridge crest in 1947 was 90 feet above the corresponding in!
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