Relevant bibliographies by topics / Harrison Glacier

Academic literature on the topic 'Harrison Glacier'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Harrison Glacier"

1

Echelmeyer, Keith, Robert Butterfield, and Doug Cuillard. "Some Observations on a Recent Surge of Peters Glacier, Alaska, U.S.A." Journal of Glaciology 33, no. 115 (1987): 341–45. http://dx.doi.org/10.1017/s0022143000008935.

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AbstractA spectacular surge occurred on Peters Glacier, Alaska, in 1986 and 1987. Several observations on the glacier were made during the course of its surge. These observations are compared with those on other surging glaciers and then interpreted in terms of the ideas on surge mechanisms and dynamics as originally postulated by Post (unpublished) and further developed during the surge of Variegated Glacier by Kamb and others (1985) and Raymond and Harrison (1986, in press). It is shown that the concepts of rapid basal motion due to high water pressure at the glacier bed and the initiation of a surge during the winter due to a pressurization of the limited supply of basal water are well supported by these observations on the surge of Peters Glacier. An extremely high suspended sediment load rich in very fine material was observed, which also supports ideas on basal processes expected during this type of surge.One interesting (and puzzling) feature of this surge cycle is that the termination of the surge occurred in late winter 1987, when surface melt water was at a minimum. This is in direct contrast to the termination of the surge on Variegated Glacier, which occurred during the period of peak ablation.
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2

Echelmeyer, Keith, Robert Butterfield, and Doug Cuillard. "Some Observations on a Recent Surge of Peters Glacier, Alaska, U.S.A." Journal of Glaciology 33, no. 115 (1987): 341–45. http://dx.doi.org/10.3189/s0022143000008935.

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Abstract:
AbstractA spectacular surge occurred on Peters Glacier, Alaska, in 1986 and 1987. Several observations on the glacier were made during the course of its surge. These observations are compared with those on other surging glaciers and then interpreted in terms of the ideas on surge mechanisms and dynamics as originally postulated by Post (unpublished) and further developed during the surge of Variegated Glacier by Kamb and others (1985) and Raymond and Harrison (1986, in press). It is shown that the concepts of rapid basal motion due to high water pressure at the glacier bed and the initiation of a surge during the winter due to a pressurization of the limited supply of basal water are well supported by these observations on the surge of Peters Glacier. An extremely high suspended sediment load rich in very fine material was observed, which also supports ideas on basal processes expected during this type of surge.One interesting (and puzzling) feature of this surge cycle is that the termination of the surge occurred in late winter 1987, when surface melt water was at a minimum. This is in direct contrast to the termination of the surge on Variegated Glacier, which occurred during the period of peak ablation.
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3

Cowan, Ellen A., Stefanie A. Brachfeld, Ross D. Powell, and Stephanie C. Schoolfield. "Terrane-specific rock magnetic characteristics preserved in glacimarine sediment from southern coastal Alaska." Canadian Journal of Earth Sciences 43, no. 9 (September 1, 2006): 1269–82. http://dx.doi.org/10.1139/e06-042.

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Sediments deposited in three fjord systems latitudinally spanning the northeast Gulf of Alaska coastline have distinctive rock magnetic characteristics that are derived from glacially eroded accreted terranes. Ideal conditions exist in coastal Alaska to preserve primary rock magnetic properties within the sediment record because of the dominance of glacial erosion and rapid sediment transportation and burial. In temperate glacially dominated marine settings, terrigenous sediment is not diluted by biogenic material and diagenetic alteration is minimal. The juxtaposition of temperate glaciers on the northwest-trending accreted terranes of the southern Alaska continental margin provides magnetic provenance tracers of sediment derived from this region that can aid in the interpretation of glacial, paleoclimate, and tectonic proxy records from marine sediment. Holocene sediment deposited in Glacier Bay is eroded from the Craig subterrane of the Alexander terrane; it is characterized by high-volume magnetic susceptibility and coarse-grained, pseudosingle-domain (PSD) and multidomain (MD) magnetite. In Yakutat and Disenchantment bays, farther to the north, glaciers also erode the Yakutat and Chugach terranes. There, sediment contains slightly finer-grained PSD and MD magnetite, which is chemically distinct from that of Glacier Bay. In the northern-most sector, sediment is eroded from the Chugach terrrane in Harriman and College fiords, adjacent to Prince William Sound. These sediments have low magnetic susceptibility and contain micron-size pyrrhotite.
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Desloges, Joseph R., and Robert Gilbert. "Sedimentary record of Harrison Lake: implications for deglaciation in southwestern British Columbia." Canadian Journal of Earth Sciences 28, no. 5 (May 1, 1991): 800–815. http://dx.doi.org/10.1139/e91-069.

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A sedimentary record from 60 km long Harrison Lake was constructed by using 3.5 kHz subbottom acoustic profiles and gravity cores of surface sediments. In places, the glaciolacustrine sediments exceed 70 m in thickness and represent the entire deglacial and postglacial accumulation record. An upper, acoustically transparent layer decreases in thickness from 12 to 4 m. southward from the upper lake. Cores from the upper metre of this layer demonstrate that deposition is dominated by settling of suspended sediment transported in a laterally mixed, wind-driven surface plume from the north. Depositional rates, inferred from 14C dating of organic macrofossils and counting of probable annual laminated couplets in the cores, are almost 2 mm/a in the north and decline to less than 0.1 mm/a in the south. Hence, the upper acoustic layer accounts for all postglacial (last 10 500 years BP) lacustrine deposition, with most of the sediment derived from Lillooet River. A lower, thicker (12–22 m), acoustically stratified layer is interpreted as high-energy glaciolacustrine deposits. This large volume of deglaciation sediment is derived from two sources: (i) ice retreating rapidly northwest up the Lillooet valley, which may have existed for no more than 400 years in the lower valley prior to opening of Lillooet Lake (which now traps most sediment derived from the upper basin); and (ii) inflow from the south as the late-glacial Fraser River rapidly built a delta north from the sill at Harrison Hot Springs. Despite known higher sea levels during deglaciation of the eastern Fraser Lowland, we have no evidence for a marine incursion.
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5

Kenneally, James P. "Comments on “Buoyancy-driven lacustrine calving, Glaciar Nef, Chilean Patagonia” by C. Warren, D. Benn, V Winchester and S. Harrison." Journal of Glaciology 48, no. 163 (2002): 629–30. http://dx.doi.org/10.3189/172756502781831142.

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6

Brüniche-Olsen, Anna, Menna E. Jones, Jeremy J. Austin, Christopher P. Burridge, and Barbara R. Holland. "Extensive population decline in the Tasmanian devil predates European settlement and devil facial tumour disease." Biology Letters 10, no. 11 (November 2014): 20140619. http://dx.doi.org/10.1098/rsbl.2014.0619.

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The Tasmanian devil ( Sarcophilus harrisii ) was widespread in Australia during the Late Pleistocene but is now endemic to the island of Tasmania. Low genetic diversity combined with the spread of devil facial tumour disease have raised concerns for the species’ long-term survival. Here, we investigate the origin of low genetic diversity by inferring the species' demographic history using temporal sampling with summary statistics, full-likelihood and approximate Bayesian computation methods. Our results show extensive population declines across Tasmania correlating with environmental changes around the last glacial maximum and following unstable climate related to increased ‘El Niño–Southern Oscillation’ activity.
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7

Karrow, Paul F. "Algonquin-Nipissing Shorelines, North Bay, Ontario." Géographie physique et Quaternaire 58, no. 2-3 (July 18, 2006): 297–304. http://dx.doi.org/10.7202/013144ar.

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Abstract The general extent, outlet location at North Bay, and shoreline tilt pattern of glacial Lake Algonquin were established by Spencer, Gilbert, Taylor, and Goldthwait about a century ago. Chapman and Harrison in the mid 1900s identified several eastward outlets and suggested correlations to named water planes as retreating ice lowered Algonquin levels. The present work supplements the meagre available North Bay shoreline elevation data with about 30 new points. Probable Cedar Point, Payette, Sheguiandah, and Korah shorelines are identified; several lower levels have no known outlets. Algonquin shoreline tilts are about 1.4 metres per kilometre. Using Nipissing shoreline elevations for correlation, North Bay data are compared with Sudbury data, showing closely similar trends, but with offsets of Algonquin shorelines probably attributable to errors from 120‑kilometre-long projections and 5 000‑year changes in uplift pattern. Of 24 radiocarbon dates compiled from the literature, 16 are on gyttja. Some of these incorporate old carbon error and require further testing with dates on terrestrial plant macrofossils. Available data remain sparse and require more basic mapping to improve ice-margin/shoreline correlations near the outlet area.
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8

Gagné, Julie. "Entendre le Nord et le froid dans le texte dramatique. Étude du « paysage audible » dans Floes de Sébastien Harrisson et Roche, papier, couteau… de Marilyn Perreault." Les Cahiers de la Société québécoise de recherche en musique 14, no. 1 (June 6, 2013): 35–41. http://dx.doi.org/10.7202/1016196ar.

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En s’inspirant de la conception multisensorielle du paysage d’Alain Corbin, l’auteure réfléchit dans cet article à la manière dont le texte dramatique véhicule le « paysage audible » du Nord et du froid. Si, dans Floes, le Nord est le lieu d’un silence audible que le bruit des glaces, le vent et la voix, caractérisée par un souffle bref en raison du froid, en viennent à habiter, le rapport à l’absence ou au trop-plein de mots est intériorisé par les personnages de Roche, papier, couteau.... Dans les pièces de Sébastien Harrisson et de Marilyn Perreault, l’écho se fait mémoire de la parole et amplifie la violence alors que la répétition des composantes acoustiques créée une temporalité gelée et circulaire. La mise en relief des éléments sonores et rythmiques utilisés par les deux dramaturges pour évoquer un (Grand) Nord froid permet de définir ce que les imaginaires du Nord et du froid donnent à entendre.
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9

Day, Robert H., Alexander K. Prichard, and Debora A. Nigro. "Ecological Specialization and Overlap of Brachyramphus Murrelets in Prince William Sound, Alaska." Auk 120, no. 3 (July 1, 2003): 680–99. http://dx.doi.org/10.1093/auk/120.3.680.

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Abstract We compared habitat use and niche overlap in the closely related seabirds Kittlitz’s (Brachyramphus brevirostris) and Marbled (B. marmoratus) Murrelets in nearshore waters of Prince William Sound, Alaska, in 1996–1998, and examined the relationship between near shore habitat use and morphology of those two species. Within bays, the distribution of Kittlitz’s Murrelet groups diverged the most from randomness for the variables habitat type (preferring [i.e. using significantly more than what is available] glacial-affected and glacial-stream-affected habitats), distance to shore (preferring areas 51–100 m from shore), and water clarity (preferring highly turbid water), whereas the distribution of Marbled Murrelet groups diverged the most from randomness for the variables habitat type (preferring glacial-unaffected habitats), ice cover (preferring areas of no ice), and sea-surface temperature (SST) (preferring temperatures = 6°C). The probability of a group of birds being Kittlitz’s Murrelets was determined most strongly by water clarity. Kittlitz’s Murrelet groups were more common in the more heavily glaciated College and Harriman fjords than in the other two bays and more common in early and midsummer than in late summer; the reverse was true for Marbled Murrelet groups. Marbled Murrelet groups had the least niche overlap with Kittlitz’s Murrelet groups in water clarity, SST, and site, whereas Kittlitz’s Murrelets had the least overlap with Marbled Murrelets in habitat type and water clarity. Similarly, Kittlitz’s Murrelet groups occurred in water significantly more turbid than did Marbled Murrelet groups in two of four habitat types. Kittlitz’s Murrelets had eyes (as indicated by orbit diameter) that were significantly larger in proportional size than Marbled Murrelets. We propose that these two species are specialized for foraging in different water types, with specialization of the Kittlitz’s Murrelet for turbid water of glacial origin leading to optical specialization.
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10

Prudden, H., S. Harrison, E. Anderson, and D. G. Passmore. "Comments on ‘Further glacial tills on Exmoor, southwest England: implications for small ice cap and valley glaciation’ by S. Harrison et al." Proceedings of the Geologists' Association 112, no. 3 (January 2001): 285–87. http://dx.doi.org/10.1016/s0016-7878(01)80008-0.

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Books on the topic "Harrison Glacier"

1

Beowulf. Harriman Alaska Series: Glaciers and Glaciation. Creative Media Partners, LLC, 2018.

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