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Hydrology

The University of Maine

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Articles 91 - 101 of 101

Full-Text Articles in Physical Sciences and Mathematics

Himalayan And Trans-Himalayan Glacier Fluctuations And The South Asian Monsoon Record, Paul Andrew Mayewski, Gerard P. Pregent, Peter A. Jeschke, Naseeruddin Ahmad Jan 1980

Himalayan And Trans-Himalayan Glacier Fluctuations And The South Asian Monsoon Record, Paul Andrew Mayewski, Gerard P. Pregent, Peter A. Jeschke, Naseeruddin Ahmad

Earth Science Faculty Scholarship

Termini fluctuations for glaciers in the Himalayas and Trans-Himalayas are examined for the period AD 1850 to 1960. This period can be characterized as one of general retreat. Differentiation by geographic subdivision, however, reveals that Himalayan glaciers (best exemplified in Lahaul-Spiti, Kolahoi, Nanga Parbat, and Garwhal) show consistent retreat throughout the period, while Trans-Himalayan glaciers (best exemplified on the north side of the Karakoram and in Batura Mustagh and Rakaposhi-Haramosh) deviate from this pattern by displaying a major period of advance from AD 1890 to 1910. Although no apparent relationship exists between the magnitude of termini advances and glacier lengths, …

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An Example Of Eskers Formed In Stagnant Ice, David H. Coupland, Paul Andrew Mayewski Jan 1980

An Example Of Eskers Formed In Stagnant Ice, David H. Coupland, Paul Andrew Mayewski

Earth Science Faculty Scholarship

Study of stratified glacial deposits near Farmington, New Hampshire reveals that the retreat of Late Wisconsin ice in this area proceeded by means of ice-marginal stagnation. Eskers in t his area were formed within localized ice masses a t or near the base of thin ice by streams which had dendritic patterns and were subaerially exposed.

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Characteristics And Significance Of Rock Glaciers In Southern Victoria Land, Antarctica, Paul Andrew Mayewski, Jon Hassinger Jan 1980

Characteristics And Significance Of Rock Glaciers In Southern Victoria Land, Antarctica, Paul Andrew Mayewski, Jon Hassinger

Earth Science Faculty Scholarship

[From the introduction] Rock glaciers, large-scale masses of frozen debris...form a group of features that, because of their dependence on temperature and precipitation, can be used as monitors of climatic change.

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Himalayan And Trans-Himalayan Glacier Fluctuations Since Ad 1812, Paul Andrew Mayewski, Peter A. Jeschke Jan 1979

Himalayan And Trans-Himalayan Glacier Fluctuations Since Ad 1812, Paul Andrew Mayewski, Peter A. Jeschke

Earth Science Faculty Scholarship

Historical records of the fluctuations of glaciers in the Himalayas and Trans-Himalayas date back to the early 19th century. Local and regional syntheses of 112 of these fluctuation records are presented in this study. The local syntheses deal with fluctuations of glaciers in Kanchenjunga-Everest, Garwhal, Lahaul-Spiti, Kolahoi, Nanga Parbat, Karakoram (north and south sides), Rakaposhi-Haramosh, Batura Mustagh, and Khunjerab-Ghujerab. Regional syntheses deal with the composite record and the differentiation of records by glacier type (longitudinal versus transverse) and regional setting (Himalayan versus Trans-Himalayan). In a gross regional sense Himalayan and Trans-Himalayan glaciers have been in a general state of retreat …

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Glaciology And Glacio-Geomorphology In Victoria Landand Queen Maud Mountains, Paul Andrew Mayewski Jan 1979

Glaciology And Glacio-Geomorphology In Victoria Landand Queen Maud Mountains, Paul Andrew Mayewski

Earth Science Faculty Scholarship

During the past year, data analysis has been under-taken on the recent and past dynamics of several northern Victoria Land glaciers, notably Rennick Glacier; the dynamics of selected rock glaciers in Wright Valley; and on the weathering characteristics of dolorites in the Queen Maud Mountains.

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A Recent Decline In Available Moisture In Northern Victoria Land, Antarctia, Paul Andrew Mayewski, John W. Attig Jr Jan 1978

A Recent Decline In Available Moisture In Northern Victoria Land, Antarctia, Paul Andrew Mayewski, John W. Attig Jr

Earth Science Faculty Scholarship

Evidence from two areas in northern Victoria Land, Antarctica demonstrate that available moisture has been declining since at least I 265 B.P. The cause is not known.

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Past Levels And Present State Of Northern Victoria Land Glaciers, Paul Andrew Mayewski Dec 1976

Past Levels And Present State Of Northern Victoria Land Glaciers, Paul Andrew Mayewski

Earth Science Faculty Scholarship

Before 1973, movement of the Ross Ice Shelf had been measured near the Transantarctic Mountains (Swithinbank, 1963), near Ross Island (Stuart and Heine, 1961) and near the ice front and to the south of Roosevelt Island (Dorrer et at., 1969). Robin (1975), assuming steady state, extrapolated these data across the ice shelf by applying volume conservation principles to measured ice thickness profiles of the ice shelf.

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Weathering Stages Of A Tholeiitic Basalt (Dolerite), Queen Maud Mountains, Paul Andrew Mayewski Dec 1976

Weathering Stages Of A Tholeiitic Basalt (Dolerite), Queen Maud Mountains, Paul Andrew Mayewski

Earth Science Faculty Scholarship

The sparsity of datable material and key horizons throughout most of the Transantarctic Mountains requires that much of the mapping and correlation of glacial deposits, especially moraines, be based primarily on qualitative techniques. One qualitative method is to characterize the degree of weathering of clasts covering these deposits (Behling, 1971; Calkin, 1971; Nichols, 1971; and Mayewski, 1975). Lacking, however, is a detailed understanding of the role and method of weathering. To help solve this problem, soil studies have been made by Claridge and Campbell (1968) in the Shackleton Glacier region and Everett and Behling (1968), Linkletter (1972), Behling (1971), and …

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Glacial Geologic Investigation Of Upper Rennick Glacier Region, Northern Victoria Land, Paul Andrew Mayewski Jul 1975

Glacial Geologic Investigation Of Upper Rennick Glacier Region, Northern Victoria Land, Paul Andrew Mayewski

Earth Science Faculty Scholarship

The 1974-1975 field season was spent investigating the upper Rennick Glacier area (figure) for (1) the relationship between the glacial history of the study area and the glacial histories already defined for more southerly sectors of the Transantarctic Mountains, (2) the history and dimensions of former fluctuations of the east antarctic ice sheet, Rennick Glacier, and its tributaries, as recorded in glacial deposits, and (3) the significance of this area in paleoclimatic reconstructions of Antarctica and the world.

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Dickey-Lincoln School Lakes, Maine, U.S.A. And Quebec, Canada: Design Memorandum No. 2: Hydrology And Hydraulic Analysis: Section 3 - Dickey Dam-Spillway Design Flood, Army. Corps Of Engineers. New England Division Jan 1975

Dickey-Lincoln School Lakes, Maine, U.S.A. And Quebec, Canada: Design Memorandum No. 2: Hydrology And Hydraulic Analysis: Section 3 - Dickey Dam-Spillway Design Flood, Army. Corps Of Engineers. New England Division

Dickey-Lincoln School Lakes Project

This report, Section III, is the third of five sections comprising Design Memorandum No. 2. This section, on the development of the spillway design flood (SDF) for the Dickey project, describes the hydrologic criteria used and analysis performed in determining the SDF and the results of routing the flood through the reservoir in order to establish surcharge-length relations for the spillway at Dickey Dam. Also included is a discussion of freeboard requirements, frequency of filling data, an update of climatologic data and daily discharge records of the Saint John and Allagash Rivers.

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Glacial Geology Near Mcmurdo Sound And Comparison With The Central Transantarctic Mountains, Paul Andrew Mayewski Jul 1972

Glacial Geology Near Mcmurdo Sound And Comparison With The Central Transantarctic Mountains, Paul Andrew Mayewski

Earth Science Faculty Scholarship

(From summary, pp. 105-106) In the central Transantarctic Mountains, the Sirius Formation consists of both a lower massive till and an upper assemblage of interlayered till and stratified lenses. Deposits of the Sirius Formation found in the McMurdo region contain only the lower massive till. The lower massive till of the Sirius Formation is thought to be a basal till because of extremely strong fabric, high concentration of faceted and striated pebbles, and heterogeneous particle sizes (clay to boulders). Fabrics observed in the basal till indicate that the ice that deposited the Sirius Formation, although displaying a much higher surface …

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