Getting There. E&E provides daily coverage of essential energy and environmental news at To accomplish this work, USGS scientists travel to Wolverine and Gulkana glaciers twice a year to make observations of snow accumulation and snow/ice melt that allow them to calculate the health of the glaciers. Mar 1, 2012 - Shasta Retreat in Dunsmuir. View on Map Coordinates Latitude: 63.184179 Longitude: -145.541555. Gulkana Glacier is located along the south flank of the eastern Alaska Range. The face is up to 400 feet tall, and icebergs 3 to 4 stories in height aren’t uncommon. The mean ELA is … • Trends for the three benchmark glaciers are consistent with the retreat of glaciers observed throughout the western United States, Alaska, and … Those early findings, repeated twice a year for the last 50 years, became the baseline for the government’s Benchmark Glacier program, the longest continuous glacier research in North America. The study monitors climate, glacial movement, glacial runoff, glacier mass-balance, and stream runoff. In 1966, the U.S. Geological Survey began measuring changes in mass and volume at Wolverine and Gulkana glaciers in Alaska as part of its Benchmark Glacier program. Meanwhile, the Wolverine Glacier, which is also shrinking, has experienced slightly cooler summers and more variability in winter temperatures. ft. single-family home is a bed, bath property. Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at, Amid Ice Melt, New Shipping Lanes Are Drawn Up off Alaska, Arctic Nations May Confront U.S. on Climate Change, Some Disaster Prevention Spending Reaps Higher Rewards, Climate Preparation Report Released by Panel Previously Disbanded by Trump. Although the development of regional estimates is relatively new, the detailed and long-term records at the benchmark glaciers reveal an increasing rate of change through the past 50 years. These two false-color images, both captured by the Thematic Mapper (TM) instrument on Landsat 5, show the glacier and the surrounding landscape in … The USGS reports that the state’s glaciers are losing 75 billion tons of ice annually, equal to the amount of water needed to fill Yankee Stadium 150,000 times each year. Daniel McGrath, a research geophysicist with the program, said much of the government’s ongoing climate research draws from the USGS’s 50 years of Alaska glacier studies. Higher temperatures and less snowfall have been causing many glaciers around the world to retreat … During climate changes, coastal glaciers are more sensitive to changes in precipitation (or the storm tracks that bring precipitation), whereas interior glaciers are more sensitive to changes … Thank you for signing up for the newsletter! Glaciers in continental or interior climates (for example, Gulkana Glacier) exist primarily because cold temperatures result in low ablation. The meltwater has a unique “glacial fingerprint” that is evident in the timing, volume and temperature of the water, as well as the nutrients it carries. This water has a unique “glacial fingerprint” that is evident in the timing, volume and temperature, as well as the nutrients carried by it. The sq. “Detailed and continuous records of this length are exceedingly rare in our field and thus these are indispensable to our understanding of the changes we’re observing across this region.”. We thus compiled a glacier database for Alaska and neighboring Canada using multi-sensor satellite data from 2000 to 2011. The 1875 advance again blocked College Creek, and another small ice-dammed lake formed. Although their data show a marked retreat in the sizes of the glaciers, changes to Alaska's many glaciers are also visible to the naked eye, O'Neel said. Climate Change in Mountain Ecosystems (CCME) Glacier Monitoring Studies: A systematic approach to monitoring changes in Glacier National Park’s namesake glaciers and to determine the causes of changes, assess their ecological and hydrological effects, and predict future changes and effects.. Glacier Retreat: An overview of CCME's research pertaining to glacial recession in Glacier … a −1 at land-terminating Lemon Creek Glacier. The uniform influence of regional climate is demonstrated by strong correlations among annual mass balance and climate data. At Phelan Cr., the decadal-averaged peak annual mean daily runoff increased on average 114 % from 14 (2000-2010) Gulkana Glacier, Alaska—Mass Balance, Meteorology, and Water Measurements, 1997–2001 Scientific Investigations Report 2011–5046 U.S. Department of the Interior U.S. Geological Survey. This home was built in and last sold on for. Each of these glaciers are influenced by different climates allowing scientists to compare how glaciers respond in different regions. Gulkana drains west into the Yukon River. The melting of glaciers depends on a variety of factors, the most important of which is the amount of solar radiation hitting the ice. The Benchmark Glacier data are available at, Additional information about the USGS Benchmark Glacier program can be found at, Office of Communications and Publishing12201 Sunrise Valley DriveReston, VA 20192United StatesPhone: 703-648-4460, Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data,, vary, with some glaciers gaining mass in certain years (for example, Wolverine Glacier during the 1980s), but the measurements clearly indicate a loss of glacier mass over time. So we’re getting some core baseline biological data to go with the physical drivers that go back 50 years.”. “These records are a testament to the hard work of many individuals and an early vision by USGS on the importance of glaciers in the landscape,” said Daniel McGrath, a research geophysicist with the program.
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