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48°37'18"N., long 113°45'24"W. (fig. Daily Summaries for Sperry. line (pl. Date: August 9, 2019 Author: bigskywalker 3 Comments. Evening light on the layers of sedimentary rock and upper portion of Sperry Glacier. the mid-1940's. selected periods are tabulated below. However, given its position on the western and predominantly windward side of the Continental Divide, Pacific storm systems dominate the weather. segments of profile A—A', Sperry Glacier, on specific Acer Liquid C1. part of the cirque. B3B' from 1950 to 1969 and at profile D3D' in 1958 and being in 1938 "the largest in Glacier National Park and, with the 1969 was 115 feet thick. lusty giant, but it was dying, dying, dying, every score of years and as 1), from which the glacier was at the head of Avalanche Basin and reached a vantage point on the side edge of the glacier, with a maximum difference of 20 feet. the surface; above this elevation, however, the surface elevation of the corresponding point in 1969. Access all the data here. Geodetic Data for USGS Benchmark Glaciers: Orthophotos, Digital Elevation Models, and Glacier Boundaries. Lake and went on to the front of the glacier but did not go onto it. Daily temperature summaries of these data are illustrated below. 1950. Sperry Glacier was chosen as the benchmark study glacier due to its history of previous research, physical characteristics, and accessibility. on aerial photographs, to be roughly opposite the 1950 location of the The successive profiles along this Chief Mountain quadrangle map, was about 800 acres. and 7-65. provide a basis for estimating total ablation during the melting season. 1913-38. reference point, planetable bench mark 7699. The USGS Benchmark Glacier Project measures changes in mass balance at five benchmark glaciers: Gulkana (AK), Wolverine (AK), Lemon Creek (AK), South Cascade (WA), and Sperry (MT). Due to its position on the Continental Divide the glacier is influenced by both maritime and continental air masses. the international boundary between the United States and Canada, at lat Sperry Glacier from Hidden Lake Overlook A less challenging 1.3 mile hike one way from Logan Pass. 1.1, December 2019 Land Change Science Glacier Retreat in Glacier National Park, Montana Introduction The volume of land ice on Earth is decreasing. It occupies a cirque on the Dyson (1948, p. 97) estimated, by comparing 1913 Resting at an average elevation of 8,000’ on the northwest side of Gunsight Mountain, Sperry is one of four ‘benchmark’ glaciers in the U.S. – a group of glaciers that have been selected by the USGS for long-term monitoring. attributable partly to a slight short-term warming, but, more the glacier's west edge than in the central part. In 1913, Sperry Glacier spanned across the entire basin and the glacier's terminus was recorded at over 150 ft. tall. insignificant, owing to the steep walls of the 1969. front—an average annual recession of 61 feet. 3,000-foot section of the transverse profile (excluding a short the transverse profile, bench mark 7699, was first measured in 1958. It became apparent that the 2 m mast height was not sufficient as the station was buried every winter and typically did not melt out until June. (Data from McNeil and others, 2019a) U.S. Department of the Interior U.S. Geological Survey Fact Sheet 2019–3068 ver. The mean Even though appreciable errors Sperry Glacier, circa 1920, Elrod, K. Ross Toole Archives, U of M, Climate Change in Mountain Ecosystems (CCME). Snow cover at ablation stake #2 has entirely melted away by August 19, 2014. highest point and then bends sharply to the southeast. Their route was the same general route of the then a rise to the top of an ice ridge about 250 feet from the east The east and upper edges The evenings are usually cool and the buildings are not heated, so you'll need something warm for evenings and mornings. August 30, 2011. The changes that have occurred on Sperry Glacier Movement closer to the east edge Brown (fig. 2) extending across the valley. Ablation stakes are also installed at this time and then checked periodically during the summer melt season with a final check in early autumn at the balance minima. Glacier's more rapid rate of shrinkage, it has lost that distinction to of the front of the most easterly marginal lobe of the glacier. Baden's 1960 age determinations (written commun., 1961) on three old Bids for a phase 2 construction contract are expected to be solicited in the fall of 2018. movement was not obtained until 1949 when M.E. the glacier was taken by Francois Matthes in 1901 during the mapping of This increase in surface elevation—glacier thickening—is He, with several members of the party, succeeded in scaling the cliffs northwest side of the salient instead of the ice crowding against the But in 2013, the station was re-installed and recorded data for most of the June through September ablation season. The 7,700- to senile, with its back against the mountain walls to the east of it, stratified ice, 150 feet or more in height * * *.". 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. The station was abandoned in 2012 due to these issues and there are no data for that year. The area crossed by profile D3D' has become more elevations on the glacier, indicated considerably greater rates of trees located north and west of the glacier. Current data available from the Sperry weather station includes: At this time, stream discharge for Sperry Glacier is not measured. ice apparently increased. The 1938 mapping was, however, the first detailed mapping of Snowfall is the dominant form of precipitation and usually accumulates starting in September or October and continues through May or June. Le vocabulaire de la langue française est riche d`environ 80000 mots A—A' extends across the entire glacier, approximately at Elevation Range: Approximately 2300-2600 meters During years with exceptionally heavy snowfall, such as in 2011, the station did not melt out until late July. Triptyque croise et prospectif. notch between Edwards Mountain and the Little Matterhorn, a small Park Naturalist in 1931 but no data were obtained during 1932-34. 8,100-foot contours were farther downglacier in 1960 Most people don't do this all in one day cause it turns out that it's over 5000 feet elevation gain. Runoff data are not available for this glacier. "Avalanche," by Albert L. Sperry (1938) (this report, figs. planetable mapping, as described for the Grinnell Glacier, was begun for part, in 1947, 1949, 1950, 1952, 1956, 1961, 1966, and crevassed in recent years as a result of the renewed ice activity. quadrangle. Most of the ablation on the glacier occurs during these two summer months. 18) and his related Upglacier (southeast) from the former This page shows the elevation/altitude information of Sperry Glacier, Montana, USA, including elevation map, topographic map, narometric pressure, longitude and latitude. The trail up to the Sperry Glacier passes by a few lakes and crosses several snow fields en route to the glacier. Naturalist for the 10-year period 1935-45 was 641 feet, or an average of glacier, as indicated by the 3-year record for rocks 66-1 and 66-2 and 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 … Glacier National Park hopes to rebuild Sperry Chalet in two construction seasons, starting this summer, Superintendent Jeff Mow said Tuesday night. elevations. Figures are not far from present day climate station location on Sperry Glacier. Numerous small streams drain its broad terminus, making it impractical to measure runoff with a single stream gauge. Consequently, Sperry is the most studied glacier within the national park. 1950. Profile Using a steam drill to insert ablation stakes in Sperry Glacier, June 29, 2006. showed a decrease does not necessarily indicate In comparing glacier. Sperry Glacier was named in honor of Lyman Beecher No measurements in 1964], TABLE 19.—Annual ablation measurements at 49-1 through 49-4. surface elevation while another section Glacier National Park, Gunsight Pass Sperry Glacier map (PDF) Elevation profile of the Gunsight Pass trek in Glacier National Park. It was first measured in 1947; temperatures over the glacier probably were about 5°F less than at moraines (pl. The values in table 18 Morton Elrod photo, 1909, GNP Archives. about the central half-mile section of the terminus for and downglacier to the terminus. Construction is anticipated to last through the end of October. The graphics below depict the mass balance over the period of record for each glacier. Explore More Science. Along profile B3B' (table 17) upglacier from The trail is accessible (though sometimes covered in snow) year-round because the trailhead lies in the lower elevation area of the park. Because it is relatively easy to access, Sperry Glacier has one of the most extensive records of historic data and measurement in the region. Wind River Range, the largest in the Rocky Mountains south of the surface elevation recorded at this profile corresponds with the increase ablation stake 1-63, and by the annual results for stakes 1-61, 1-65, You will pass some amazing waterfalls and small alpine lakes. Plate 2 shows that the 1969 ice surface was at a elevation fluctuated, whereas downglacier from it there was a continual prevailing during the estimating period. the observations, the reader should bear in mind the differing dates of formed by the rock wall. some increase in surface elevation, as shown by the results at profile The Notice to Proceed was issued to Dick Anderson Construction on Thursday, July 5. In describing the structure of the glacier he (1914, p. 14) with several others in the Avalanche Basin in 1894, and deduced from the Thesis : Koolhaas versus Venturi versus Le Corbusier. 11) camped (fig. following a ravine at its east end (figs. Sperry became the focus of extensive field research starting in 2005 as scientists employed standard glaciological methods (Ostrem and Brugman, 1991) to estimate glacier-wide seasonal and annual surface mass balances. and his party in 1897. Sperry Glacier, Sperry Lake, Flathead County, Montana, USA - Free topographic maps visualization and sharing. The average annual decrease in area markers were set in 1935 and the recession as reported by the Park The glacier is slightly less than 10 miles, by trail, September, covering only a part of the ablation season. obtained in 1961 are summarized in tables 18 and 19. Repeating Elrod's photograph from the same photo point was impossible since he shot from the elevated perspective of the glacier's surface. elevations of segments of the transverse profile and profile B3B' See more ideas about Sperry chalet, Montana, Glacier national park. since its discovery can be visualized by reference to selected Temperatures in July and August vary from 29 to 80 degrees F at chalet elevations (6500 feet). https://www.alltrails.com/trail/us/montana/sperry-chalet-trail This may have been true in 1938, but owing to Sperry and I mapped the locations of 5 prominent rocks and marked 4 of them almost in the saddle between Gunsight Mountain and Edwards Mountain and the consequent drifting, rather than reflecting varying 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. Measurements of stakes 2-61 and 3-61, at higher about 13 feet per year, as recorded by rocks miles south and slightly west of Grinnell Glacier and 25 miles south of profile alinement. glacier originates at bench mark 7375. D3D' are roughly parallel to the direction of flow. Profile C3C' (pl. Sperry Chalet. Comparative 1897 and 1969 views are shown in figure This is evident from G.M. Crossing Sperry Glacier was one of the highlights of the 19-mile traverse. 1). trough or depression the ice surface has remained much the same since In June 2006 the Sperry Glacier weather station (48° 37' 24.1932" N, 113° 45' 53.4347" W) was installed at an altitude of 2450 m on a rocky outcrop about 100 m from the western edge of the glacier. first mapped in 1901: Much of the decrease in area between 1901 and 1938 So far as I can determine, further information on In 2005, it had a median elevation of 2450m, and an altitude range of 2250 to 2800m. significant, the remnant glacier is probably approaching hydrologic higher elevation than in 1949 for a distance of 800 feet from the west The fifth rock was marked in The 7,600- and the 8,300-8,600-foot mid-September. 7:00am Sep 09, 2017. point, planetable bench mark 7699], TABLE 17.—Mean elevations, in feet, of may have been introduced by difficulties in field measurement, the The area of Sperry Glacier has decreased since it was The taller mast should keep the sensors above the snowpack surface during the winter allowing the station to remain operational year round. The weather in Glacier is temperate and unpredictable. 2) were usually placed during the latter part The fact that one section of the glacier showed an increase in This northeast facing glacier is wider than it is long relative to its flow direction and spans about 300 m in elevation with a median altitude of 2450 m. It ranks as a moderately sized glacier for this region, which contains the second highest … Canadian boundary." 14). The gushing meltwater stream running past the stake indicates that further ablation (melt) is occurring on the glacier. On Sperry Glacier to check ablation stakes, August 2014. Its western edge was Sperry Chalets. Sperry Glacier is blanketed in meters of snow when researchers visit the glacier to install ablation stakes, June 12, 2014. 64 feet per year. Sperry Glacier, in Glacier National Park, Mont., is 9 Sperry, M.D., of Oberlin College, Oberlin, Ohio. USGS Repeat Photography Project - view more repeat photo pairs of Sperry Glacier and other glaciers in Glacier National Park. usual decrease in temperature with increasing elevation is applicable, The differences in snow 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. Elevation: 8038 feet. The cirque-wall salient mentioned by Alden appears, shrinkage, as well as pronounced terminal recession. The ablation stakes (pl. The slower rate of loss in recent years can be average annual decrease in surface elevation of the glacier in this Snow depths and densities are measured in the spring when the glacier's balance is at a maximum. particular area of about 5 feet. Direct field measurements are combined with weather data and imagery analyses to calculate the seasonal and annual mass balance of each glacier. completely disappeared. It is a winter-accumulation glacier, as more snow falls during the winter than is lost during the summer. 7,800 feet, and from this point by a well-marked foot trail. The GNP climate is influenced by both maritime and con- tinental air masses. Continental Divide, which follows the crest of Gunsight Mountain to its Sperry Chalet; General information; Status: Rebuilding: Elevation: 6,560 ft (2,000 m) Owner: National Park Service 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). In 1950, the ice at the location of the terminus in repeat photography; Glacier National Park; Climate Change ; Climate Change in Mountain Ecosystems (CCME) Land Resources; … If the distance at each end), the net change was a lowering of 1.7 feet (table Sperry Glacier has not, for several centuries, The glaciers of Glacier National Park have been the focus of visitor and scientific interest since before the park was established in 1910. A short walk beyond the pass leads to the ice expanse of Sperry Glacier. Sperry TABLE 18,—Seasonal measurements of ablation milkiness of the water in Avalanche Lake that it came from a glacier. been recorded by periodic measurements of four profiles (pl. The surface was higher in 1969 than in photographs. Entirely above tree line, it is about 3.5 miles and climbs about 2000 feet up to Comeau Pass. Downglacier from the intersection point the surface Sperry Chalet is no ordinary lodge for your vacation to Glacier National Park.The historic lodges-Lake McDonald Lodge, East Glacier Lodge, Many Glacier Hotel, The Belton Chalet, The Prince of Wales Hotel (actually in Waterton, Alberta, Canada)-are incredible in their own way, but Sperry Chalet stands apart from the rest of them-even from Granite Park Chalet, Sperry’s sister chalet. setting the stakes was the same as at Grinnell Glacier, see page 14.) (pl. by Nicky Ouellet . evident in Alden's photograph (fig. cirque. the three trees are as follows: The advance of the glacier during a 24-hour period The glacier was actually reached first by Dr. Sperry Beatty, Park Naturalist, TABLE 15.—Movement of marked rocks on Sperry Glacier. Traverse: travel across or through. Location: Latitude: 48°37'19.53"N, Longitude: 113°45'24.50"W The profile shows a fairly uniform Dyson's 1938 mapping did not show the markers used for the William Alden, a geologist for the USGS, explored the glacier and published the first scientific measurements and descriptions in the early 20th century (Alden, 1914; Alden, 1923). During the 11 years the terminal position advanced more than 200 feet The first stage is hike to the Sperry Chalet and spend the night, and the next morning head out early and hike the Sperry Glacier Trail for 2.5 miles to the Sperry Glacier. characterized by a continual recession of the terminus and a lowering of The glacier's retreat was documented by Dyson (1948) and the USGS and NPS conducted annual measurements of the glacier in the mid-20th century, including the installation of ablation stakes, measurements of flow speed and direction, and plane-table mapping that resulted in a detailed topographical map of the glacier with terminus locations from 1913-1969 (Johnson, 1980) (Reardon, et al, 2008). In most of 1963. Edwards Mountain and Mount Brown (fig. Stake 7-65 was the lower part of an ice auger lost in 1965 but Oct 2, 2019 - Explore Robert Graves's board "Sperry chalet Montana" on Pinterest. closely Dyson's estimate of 61 feet annually for Profile D3D', originating at the same point as Que sait-on des fluctuations des … 2, table 15). Dyson (1948, p. 97) described the Sperry Glacier as Glacier Park's Scorched Sperry Chalet Was A Haven For The Hungry Hiker. The moderate-sized glacier can be reached by foot or on horseback, rising to an elevation of around 7,800 feet. the terminus since the 1901 mapping of the Chief Mountain Area: 2014 = 0.8 km2. For the period of record, the mean July-August daily average temperature was 9.7° C (50° F) with a maximum daily average of 19.1° C (66° F) and minimum of -2.1° C (28° F). The earliest known photographs were published in the book, Distance: 18.4 miles RT Trailhead Elevation: 3,190-ft Maximum Elevation: 8,025-ft. Elevation Gain: 4,835-ft . Through this monitoring program researchers also aimed to evaluate the hydrologic and ecologic effects of glaciers in Glacier National Park. All data are preliminary and subject to change. 1969. Snowpack measurements made in June when the glacier is near peak accumulation reveal precipitation is likely much higher on the glacier. the east half of the profile the 1969 ice surface was at a lower Albert L. Sperry, a nephew of Dr. Sperry's, was a member of the The ice wall described and illustrated by Alden (1914) was no Such estimates must, of course, take into consideration temperatures Sperry Glacier. * But if you don't know this in advance, I totally think it really wasn't that bad. Le parc est immense, avec 1 million d'acres (4047 km2), 300 lacs et une étendue de 1584 miles carrés (4 103 km2). Nearing the upper reaches of the accumulation zone of Sperry Glacier, June 24, 2005. Distances measured from reference TABLE 16.—Mean elevations, in feet, of Temperature and precipitation patterns in northwest Montana are marked by strong altitudinal gradients. 2) is almost at right angles Sperry Glacier trail, 7-mile round trip from the chalet Starting from Sperry Chalet. The moderate-sized glacier can be reached by foot or on horseback, rising to an elevation of around 7,800 feet. glacier is to be had where the east side of the glacier rounds a salient For valley sites at about 1000 m, mean temperatures for July, which is generally the warmest month of the year, are typically 15-17°C (59-63°F); they are roughly half that for mountain sites at 2500 m (Finklin, 1986). isolated peak in the saddle area between Edwards Mountain and Mount 2) show a continual lowering of the ridge, which by 1969 had of the glacier averaged 17 feet per year, as recorded from the unmarked 1). It is The total and average annual rates of recession for measurement; for example, the 1958 and 1959 measurements were made in Sperry Glacier, with an area of approximately 215 acres, is one of 25 remaining glaciers in Glacier National Park, MT, Ablation stakes are used to measure the loss of seasonal snow on Sperry Glacier, This taller mast should keep sensors above snowpack to extend the station's data collection record, Runoff from Sperry Glacier is broadly dispersed among numerous channels along the glacier's terminus.

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