Filters: Tags: Barry Glacier (X)
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Subaerial landslides at the head of Barry Arm Fjord in southern Alaska could generate tsunamis (if they rapidly failed into the Fjord) and are therefore a potential threat to people, marine interests, and infrastructure throughout the Prince William Sound region. Knowledge of ongoing landslide movement is essential to understanding the threat posed by the landslides. Because of the landslides' remote location, field-based ground monitoring is challenging. Alternatively, periodic acquisition and interferometric processing of satellite-based synthetic aperture radar data provide an accurate means to remotely monitor landslide movement. Interferometric synthetic aperture radar (InSAR) uses two Synthetic Aperture...
Subaerial landslides at the head of the Barry Arm fjord remain a tsunami threat for the Prince William Sound region in southern Alaska. Tasked RADARSAT-2 synthetic aperture radar (SAR) data from two ultrafine beam modes (2 m), U19 and U15, were used to measure landslide movement of slopes near the toe of the Barry Glacier between 21 May 2021 and 5 November 2021. Data were acquired every 24 days, with U19 beginning on 21 May 2021 and U15 beginning on 28 May 2021. For a few planned acquisition dates, scenes were not captured because of technical issues. Interferometric synthetic aperture radar (InSAR) deformation maps (interferograms) are provided in wrapped phase (line-of-sight (LOS) phase in radians between 0 and...
Alaska Glaciers. Barry Glacier, Harriman Fiord. Wells district, Alaska Gulf region, Alaska. 1905.
Alaska Glaciers. Barry Glacier, which is east of Anchorage in the Chugach Mountains. August 22, 1943.
Categories: Image;
Tags: Alaska,
Alaska Glaciers,
Barry Glacier,
Chugach Mountains,
Fellows, R.E. Collection,
Alaska Glaciers. Barry and Coxe Glaciers in the Chugach Mountains. The glaciers are much more widely separated than in previous years. October 5, 1914. Plate 5-B, U.S. Geological Survey Professional paper 98-C.
Categories: Image;
Tags: Barry Glacier,
Chugach Mountains, Alaska,
Coxe Glacier,
Glaciers,
Johnson, B.L. Collection,
Alaska Glaciers. Barry Glacier (left) and Coxe Glacier (right) at head of Barry Arm of Port Wells, Prince William Sound. Wells district, Alaska. August 22, 1943.
Categories: Image;
Tags: Alaska,
Alaska Glaciers,
Barry Glacier,
Coxe Glacier,
Fellows, R.E. Collection,
Center and west part of front of Barry Glacier, from point A. The waterfall at the left is just visible at the extreme left in Paige 685. Wells district, Alaska Gulf region, Alaska. June 29, 1909. Plate 20-B in U.S. Geological Survey. Bulletin 526. 1913.
Categories: Image;
Tags: Barry Glacier,
Glaciers,
Paige, Sidney collection.,
Photographers,
Wells district, Alaska Gulf region, Alaska,
Two active landslides at and near the retreating front of Barry Glacier at the head of Barry Arm Fjord in southern Alaska (Figure 1) could generate tsunamis if they failed rapidly and entered the water of the fjord. Landslide A, at the front of the glacier, is the largest, with a total volume estimated at 455 M m3 (Dai et al, 2020). Historical photographs from Barry Arm indicate that Landslide A initiated in the mid twentieth century, but there was a large pulse of movement between 2010 and 2017 when Barry Glacier thinned and retreated from about 1/2 of the toe of Landslide A (Dai et al., 2020). The glacier has continued to retreat since 2017. Interferometric synthetic aperture radar (InSAR) investigations of the...
Alaska Glaciers. Barry Glacier and the entrance to Harriman Fjord. Barry Glacier is east of Anchorage in the Chugach Mountains August 20, 1905.
Categories: Image;
Tags: Barry Glacier,
Glaciers,
Paige, Sidney collection,
Photographers,
photo print
Album caption: Prince William Sound - Port Wells district - Barry Arm. 2:00 P.M., rainy, very dull, 8 stop, 1-5 sec. Panorama of the Barry Glacier front. This view shows junction of Barry and Cascade glaciers. October 5, 1914. Handwritten notes on album caption: Wells, district, Alaska Gulf region. Pl. 6-B, PP 98, 1917. Index card: Johnson, B. L. 589: Cascade Glacier at its junction wiht Barry Glacier. Glaciers are almost separated, and Cascade Glacier has begun to retreat up the fiord wall. From deck of a launch, Prince William Sound, Wells district, Alaska Gulf region, Alaska. October 5, 1914. Published as plate 6-B in U. S. Geological Survey Professional paper 98, 1917. Original index card: Johnson,...
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Barry Glacier,
Cascade Glacier,
Glacier Bay National Park,
Glaciers,
Johnson, B.L. Collection,
East part of front of Barry Glacier from point A. Wells district, Alaska Gulf region, Alaska. August 20, 1905. Plate 19-A in U.S. Geological Survey. Bulletin 526. 1913.
Categories: Image;
Tags: Barry Glacier,
Glaciers,
Paige, S. Collection,
Photographers,
Wells district, Alaska Gulf region, Alaska,
Glacier Bay National Park and Preserve, Alaska. Cascade Glacier, center, with the front of Barry Glacier coming in from the right. August 22, 1943.
Alaska Glaciers. Barry Glacier and the entrance to Harriman Fjord. Barry Glacier is east of Anchorage in the Chugach Mountains. August 20, 1905. Plate 20-A, U.S. Geological Survey Bulletin 526.
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