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1-20 OF 39 RESULTS FOR
La Perouse Glacier
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Image
a) La Perouse Glacier, New Zealand field site; b) the distribution of the G...
in Assessing Ground Penetrating Radar's Ability To Image Subsurface Characteristics of Icy Debris Fans in Alaska and New Zealand
> Journal of Environmental and Engineering Geophysics
Published: 20 December 2018
Figure 2. a) La Perouse Glacier, New Zealand field site; b) the distribution of the GPR data, CMP soundings (points with Tx-Rx offset range shown by solid lines) and repeated profiles 2 m south of a crevasse (dashed line) on the middle icy debris fan; and c) photograph looking approximately
Image
Middle Fan at La Perouse Glacier in March 2014 showing a range of albedo re...
in Geomorphology of icy debris fans: Delivery of ice and sediment to valley glaciers decoupled from icecaps
> Geosphere
Published: 04 June 2018
Figure 5. Middle Fan at La Perouse Glacier in March 2014 showing a range of albedo reflecting the relative ages of recent ice avalanche deposits. The bright white deposits (left center) occurred the day the photo was taken. The slightly darker deposits on the left are two days old
Image
Summary mapping of deposits from time-lapse cameras at La Perouse Glacier f...
in Geomorphology of icy debris fans: Delivery of ice and sediment to valley glaciers decoupled from icecaps
> Geosphere
Published: 04 June 2018
Figure 12. Summary mapping of deposits from time-lapse cameras at La Perouse Glacier from January 2013 to September 2013. Cumulative summaries for each month are shown.
Image
NEW DEPOSITS ON LA PEROUSE GLACIER ICY DEBRIS FANS
in Geomorphology of icy debris fans: Delivery of ice and sediment to valley glaciers decoupled from icecaps
> Geosphere
Published: 04 June 2018
TABLE 4. NEW DEPOSITS ON LA PEROUSE GLACIER ICY DEBRIS FANS
Journal Article
Assessing Ground Penetrating Radar's Ability To Image Subsurface Characteristics of Icy Debris Fans in Alaska and New Zealand
Published: 20 December 2018
Journal of Environmental and Engineering Geophysics (2018) 23 (4): 423–436.
...Figure 2. a) La Perouse Glacier, New Zealand field site; b) the distribution of the GPR data, CMP soundings (points with Tx-Rx offset range shown by solid lines) and repeated profiles 2 m south of a crevasse (dashed line) on the middle icy debris fan; and c) photograph looking approximately...
Image
(A) Shaded relief map derived from light detection and ranging (lidar) topo...
in Geomorphic expression and slip rate of the Fairweather fault, southeast Alaska, and evidence for predecessors of the 1958 rupture
> Geosphere
Published: 06 May 2021
Plate 3 (A) Shaded relief map derived from light detection and ranging (lidar) topography acquired between La Perouse Glacier and Finger Glacier. (B) Map of surficial geology and active traces of the Fairweather fault between La Perouse Glacier and Finger Glacier. See Plate 2 for explanation
Image
(A) Shaded relief map derived from light detection and ranging (lidar) topo...
in Geomorphic expression and slip rate of the Fairweather fault, southeast Alaska, and evidence for predecessors of the 1958 rupture
> Geosphere
Published: 06 May 2021
Plate 2 (A) Shaded relief map derived from light detection and ranging (lidar) topography acquired between Crillon Lake and La Perouse Glacier. (B) Map of surficial geology and active traces of the Fairweather fault between Crillon Lake and La Perouse Glacier. North orientation rotated 48°. IFSAR
Image
Field measurements of recent deposits on icy debris fans were done to calib...
in Geomorphology of icy debris fans: Delivery of ice and sediment to valley glaciers decoupled from icecaps
> Geosphere
Published: 04 June 2018
at Douglas Glacier in March 2014. (B) Recent deposits mapped on Middle Fan at La Perouse Glacier in March 2014. (C) Field mapping using Range Finder at the toe (delineated by yellow line) of a recent ice avalanche on Fan 4 at Douglas Glacier. (D) Mapping new ice avalanche deposits that occurred that day
Image
Elevation changes on icy debris fans and associated valley glaciers between...
in Geomorphology of icy debris fans: Delivery of ice and sediment to valley glaciers decoupled from icecaps
> Geosphere
Published: 04 June 2018
loss in surface elevation. Scale ranges are: McCarthy: –16 m to +15 m; La Perouse: –20 m to +20 m; Douglas: –20 m to +20 m. Fans are labeled in black, glaciers in white. Blue areas on the uppermost slopes are areas beyond reliable TLS coverage. (A) Surface elevations at McCarthy Glacier indicated
Image
Variation in process dominance between fans related to differences in catch...
in Geomorphology of icy debris fans: Delivery of ice and sediment to valley glaciers decoupled from icecaps
> Geosphere
Published: 04 June 2018
: June 2013 to June 2015; La Perouse Glacier: January 2013 to September 2013; Douglas Glacier: January 2013 to August 2013; Mueller Glacier: March 2014 to March 2015. Note the absence of debris flows at fans with simple catchments (Douglas Fans 1–5, Mueller Fan 1, and McCarthy East Fan). Fans with simple
Image
Velocity analysis results from WARR soundings at the icy debris fans on La ...
in Assessing Ground Penetrating Radar's Ability To Image Subsurface Characteristics of Icy Debris Fans in Alaska and New Zealand
> Journal of Environmental and Engineering Geophysics
Published: 20 December 2018
Table 3. Velocity analysis results from WARR soundings at the icy debris fans on La Perouse Glacier, New Zealand. CMP6, CMP7, and CMP8 were collected at the same mid-point on a recent ice avalanche deposit.
Image
Histograms showing seasonal variation in depositional processes (ice avalan...
in Geomorphology of icy debris fans: Delivery of ice and sediment to valley glaciers decoupled from icecaps
> Geosphere
Published: 04 June 2018
cameras. (A) McCarthy Glacier, Alaska; (B) La Perouse Glacier, New Zealand; (C) Douglas Glacier, New Zealand; and (D) Mueller Glacier, New Zealand.
Image
Geomorphic settings of icy debris fans discussed, showing the range of catc...
in Geomorphology of icy debris fans: Delivery of ice and sediment to valley glaciers decoupled from icecaps
> Geosphere
Published: 04 June 2018
. (C) La Perouse Glacier IDFs (right) occur along the lateral margin of a larger valley glacier. Catchments are extensive, steep, and elongated. Note that the fan axis is approximately perpendicular to valley glacier flow. (D) The large IDF at Mueller Glacier (left) occurs directly below a hanging
Image
a) WARR sounding; and b) semblance analysis of CMP9 ( Table 1 ) collected o...
in Assessing Ground Penetrating Radar's Ability To Image Subsurface Characteristics of Icy Debris Fans in Alaska and New Zealand
> Journal of Environmental and Engineering Geophysics
Published: 20 December 2018
Figure 4. a) WARR sounding; and b) semblance analysis of CMP9 ( Table 1 ) collected on the icy debris fan along the dashed line in Fig. 2 from the La Perouse Glacier site in New Zealand. GPR sounding data are dewowed and have a constant gain applied. Velocity analysis results provided
Image
Slush avalanches (SA) and slush flows (SF) on Fan 1 at Mueller Glacier in J...
in Geomorphology of icy debris fans: Delivery of ice and sediment to valley glaciers decoupled from icecaps
> Geosphere
Published: 04 June 2018
. Slush flows may also incise into underlying deposits due to turbulence during their flow. Inset from La Perouse Glacier in January 2013 shows incised channel (arrow).
Image
Internal stratigraphy of the distal parts of icy debris fans (IDFs) at La P...
in Geomorphology of icy debris fans: Delivery of ice and sediment to valley glaciers decoupled from icecaps
> Geosphere
Published: 04 June 2018
Figure 26. Internal stratigraphy of the distal parts of icy debris fans (IDFs) at La Perouse Glacier. (A) March 2015 drone photo into a large crevasse on East Fan (person in red for scale). (B) Oblique ground view of distal edge of Middle Fan where the toe has slumped along the margin
Image
Landsat 8 satellite image of Glacier Bay region, acquired 22 September 2015...
in Geomorphic expression and slip rate of the Fairweather fault, southeast Alaska, and evidence for predecessors of the 1958 rupture
> Geosphere
Published: 06 May 2021
Bay–Icy Point thrust fault ( Plafker, 1967 ; Risley et al., 1992 ), and the Finger Glacier fault onshore. CL—Crillon Lake; LPG—La Perouse Glacier; FG—Finger Glacier. Yellow box outlines Plate 1 and the inset map in lower left. The inset map is rotated clockwise 45° and shows the locations
Image
Icy debris flow deposits. (A) Recent icy debris flow deposit (darker, black...
in Geomorphology of icy debris fans: Delivery of ice and sediment to valley glaciers decoupled from icecaps
> Geosphere
Published: 04 June 2018
Figure 7. Icy debris flow deposits. (A) Recent icy debris flow deposit (darker, black albedo) on Middle Fan at La Perouse Glacier in December 2016. Note the digitate termini. Also visible are gray slush avalanche deposits on both sides of the debris flow. Note their straight termini. (B) Icy
Journal Article
Geomorphology of icy debris fans: Delivery of ice and sediment to valley glaciers decoupled from icecaps
Journal: Geosphere
Publisher: Geological Society of America
Published: 04 June 2018
Geosphere (2018) 14 (4): 1710–1752.
...Figure 5. Middle Fan at La Perouse Glacier in March 2014 showing a range of albedo reflecting the relative ages of recent ice avalanche deposits. The bright white deposits (left center) occurred the day the photo was taken. The slightly darker deposits on the left are two days old...
Includes: Supplemental Content
Image
GPR profiles (a and b) adjacent to crevasse (c) exposing subsurface stratig...
in Assessing Ground Penetrating Radar's Ability To Image Subsurface Characteristics of Icy Debris Fans in Alaska and New Zealand
> Journal of Environmental and Engineering Geophysics
Published: 20 December 2018
Figure 5. GPR profiles (a and b) adjacent to crevasse (c) exposing subsurface stratigraphy in icy debris fan on the La Perouse glacier (dashed line in Fig. 2 ). The GPR profiles were collected in broadside parallel (a) and broadside perpendicular (b) relative to the profile line, or more
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