Measurements at the three remaining sites were expanded to include ice-motion and surface-altitude observations (for determining glacier-volume change) in addition to the balance, runoff, and meteorological observations already in progress. on April 20, 2017. Overview College Glacier is a relatively short, receding, and thinning glacier in the Eastern Alaska Range near the Richardson Highway. The creek bed is composed of typical ground-moraine material: poorly-sorted gravel and small boulders. Type. USGS information on Gulkana Glacier, including photographs of glacier retreat since 1910.,,,, Glaciers of Valdez–Cordova Census Area, Alaska, Creative Commons Attribution-ShareAlike License, This page was last edited on 4 January 2020, at 15:29. Location. Data for 1992 and 1993 were published by March and Trabant (1996 and 1997) and for 1994 by March (1998). Gulkana Glacier 2012 (Kinney) The trailhead for this special hike is located at the end of a two mile gravel road that exits the Richardson Highway to the east, a few miles north of Summit Lake. [3] Closer to the glacier, a suspension bridge allows pedestrians to cross over Phelan Creek. Typical winter under-ice discharge is about 0.1 m3/s; typical summer discharge is about 4-20 m3/s; the period-of-record peak discharge is 65 m3/s (Linn and others, 1994). In 1966, a continuing series of meteorological, snow and ice balance, and runoff measurements was begun by the USGS as part of the United States contribution to the International Hydrologic Decade study of mass balances on selected glaciers. Gulkana Glacier is a branched valley glacier in interior Alaska on the south-facing flank of the eastern Alaska Range. A dramatic example of glacier retreat: top photograph shows lower Gulkana Glacier on July 1910; bottom photograph shows view from same location on July 1952. Gulkana Glacier is one of USGS’s two “benchmark” glaciers in Alaska, for which it has been patiently gathering data on an annual basis for the last fifty years. It has a super cool suspension bridge and can be done all in the same day. Drive in as far as your vehicle will allow (my Ford Focus made it a couple miles). The Gulkana weather station (latitude 63°16'N, longitude 145°25'W) is located at an altitude of 1480 m on the crest of a wind-swept, ice-cored moraine along the eastern boundary of the glacier. ft. single-family home is a 3 bed, 3.0 bath property. Access to the College Glacier begins at the same location as the Gulkana Glacier Hike. Measured winter snow balances and annual balances from 1966-77 are reported by Meier and others (1980). Hiking Castner Glacier During Winter. The last mile or so of the road is rough, but we made it through and camped Friday night at the end of the road. (c) Photo of equipment installed on Gulkana Glacier. [4] Wildlife includes moose and bears. By collecting data near the balance maxima and minima direct measurements closely reflect maximum winter accumulation and the annual balances at each location. Direct field measurements are combined with weather data and imagery analyses to calculate the seasonal and annual mass balance of each glacier. Overview. In the future, runoff volumes from Interior Alaska glaciers, such as the Gulkana, are likely to be altered much more strongly by climate change compared to glaciers located in coastal, maritime environments. Gulkana Glacier is a multi-branched valley glacier located in a continental climate regime on the south flank of the eastern Alaska Range in central Alaska. It's an out and back about 6 miles total. The glaciers are distributed in different climate regimes to better define glacier response to changes in climate forcing. ft. single-family home is a 3 bed, 3.0 bath property. Daily average temperatures from that era have an accuracy of about ±1.0°C, and annual precipitation has an estimated accuracy of about ±0.005 m (Mayo and others, 1992; Kennedy, 1995). A researcher measuring the thickness of the snow at Gulkana Glacier (Source: USGS). Elevation Range: Approximately 1160-2470 meters Ridge-top is north of the main trunk at 1925 m. The sensors installed measure: The Phelan Creek near Paxson stream gaging station, USGS station 15478040, is part of the USGS network of nearly 100 stations in Alaska. Daily precipitation catch can be over 100 mm. Gulkana Glacier with the weather station in the foreground. The average annual air temperature at the recorder site is about -4 degrees Celsius(°C), and the average annual precipitation-gage catch is about 1,000 millimeters (mm). Since 1975 both the stakes and the glacier surface elevations at the actual index sites have been surveyed to allow calculations of velocity and surface elevation change. View from southwest of the glacier (August, 2013). The channel is subject to frequent changes during high flows. Gulkana Glacier is located along the south flank of the eastern Alaska Range. Starting in the late 1980's the station has been updated with progressively newer, more accurate, and more sensors. Wolverine Glacier and South Cascade Glacier are the other two monitoring sites. Drainage area: 24.5 km 2 This A-frame hut is located at 4800 feet and requires an understanding of glacier conditions to reach it. The McCall, Gulkana, and Wolverine Glaciers in Alaska, the Berendon, Place, and Sentinel Glaciers in the Coast Mountains of British Columbia, the South Cascade Glacier in Washington, and the Maclure Glacier in California form the north-south profile in North America. Dogs are also able to use this trail but must be kept on leash. Radar system to measure snow thickness, April 2014, Driving the radar system across the upper glacier, April 2014, Thickness and density snow-pit, April 2015, Lunar eclipse over Icefall Peak, April 2014, Northern Lights over the camp, April 2015, GPS to survey ablation stakes, April 2014, GPS survey of an ablation stake, April 2014, Gulkana Gaging Station Data (USGS 15478040), Incoming and Outgoing Short-wave Radiation. (a) Map of Gulkana Glacier and the location of the experiment ‘Seismometer to Investigate Ice and Ocean Structure’ (SIIOS) array relative to Fairbanks, Alaska, and Anchorage, Alaska. The accumulation area consists of four adjacent cirques with east, south, and west exposures and the ablation … The main trunk of the glacier has a southerly aspect, and is fed by four cirques with west, south, and east aspects. This trail is located 60 miles south of Delta Junction, and 12 miles north of Paxson. These data constitute the longest continuous set of mass-balance data in North America (Josberger and others, 2007) which are used to understand glacier dynamics and hydrology, and understand the glacier's response to climate change. Density of the material gained or lost is measured with a snow-pit or core. 3 beds, 2.5 baths, 1827 sq. Before October 1968, published as Gulkana Creek near Paxson. Richardson Highway, southeast of Fairbanks Years ago many a mountaineering adventure used this access route to enter the mountains, but the popularity of recreational snowmachining has driven mountaineers to quieter areas. Area: 2016 = 16.0 km2. Repeated point measurements at established index sites, in conjunction with local meteorology and runoff data, are used to estimate glacier-wide mass balances. We met up with the group in a parking lot at UAF and spent some time making sure everyone had crampons that fit their shoes. This home was built in and last sold on 11/3/2017 for $193,900. Location in California. Daily average temperatures range from a low of -35°C to a high of 16°C. Gulkana Glacier is located in the Alaska Range (continental climate) and Wolverine Glacier is located in the Kenai Mountains (maritime climate). Orange symbols represent far-field weather stations used to fill … The station is slightly lower than the glacier's average equilibrium line altitude (ELA) and approximately 300 m from the east edge of the glacier. Data from two glaciers located in climatically distinct basins form the basis of this project in Alaska: Gulkana Glacier, a continental glacier located in the Alaska Range, and Wolverine Glacier, a maritime glacier located in the Kenai Mountains.
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