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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 641 to 650 of 1572 (0.048 seconds)Spelling suggestions: "subject:"6geological"" "subject:"achaeological""
| 641 |
Fluctuations of a Greenlandic tidewater glacier from the Little Ice Age to present : reconstruction and modelling of Kangiata Nunaata Sermia, SW GreenlandLea, James M. January 2014 (has links)
Significant uncertainty surrounds the influence of atmospheric and oceanic forcing on the fluctuations of tidewater glacier outlets of the Greenland ice sheet (GrIS), with the majority of studies focussing on dynamics over the last two decades. Although numerical model based projections exist anticipating the future dynamics of major GrIS outlets, these have been made using temporally limited model calibration periods (<5 years) compared to the centennial timescales that they seek to predict over. The ability of these numerical models to simulate the centennial timescale dynamics of GrIS tidewater glaciers has therefore not been explicitly tested. This thesis seeks to calibrate a well-established one-dimensional tidewater glacier numerical model against post-Little Ice Age maximum (LIAmax) observations of a major tidewater glacier outlet of GrIS. The study site chosen is Kangiata Nunaata Sermia (KNS); the largest tidewater outlet in SW Greenland south of Jakobshavn Isbræ. This glacier is known to have undergone retreat of >20 km since its LIAmax, though the timing of this retreat and response to climate forcing is currently poorly constrained. Utilising a range of source material, it is demonstrated that KNS is likely to have achieved its LIAmax by 1761, experiencing either one, or two multi-kilometre retreats by 1859, and retreats of a similar scale between 1921-1968, and 1997-2012. Terminus fluctuations of KNS were in phase with climate anomalies, where data were available for comparison (1871-2012). To allow accurate comparison to numerical model output, the accuracy of different methods of quantifying glacier terminus change was also evaluated. Two new methods were devised so observations could be matched with greater accuracy than existing methods allowed. Glacier sensitivity to climate forcing was evaluated using the numerical model.
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| 642 |
Palaeoenvironments, stratigraphy and tectonics of parts of the Asbian and Brigantian succession in Fife and the Lothians (eastern part of the Midland Valley of Scotland)Maddox, Steven John January 1988 (has links)
No description available.
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| 643 |
A dinocyst calibration of the Western European BarremianHarding, I. C. January 1986 (has links)
No description available.
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| 644 |
The relationships between igneous rocks and Carboniferous limestone diagenesis in the area between Bakewell and Matlock, DerbyshireCurrie, S. January 1987 (has links)
No description available.
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| 645 |
Lower Palaeozoic history of the Tywi Lineament, Mid - WalesSmallwood, S. D. January 1986 (has links)
No description available.
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| 646 |
A cenozoic stress history of southern England inferred from mesofracturesBevan, T. G. January 1985 (has links)
No description available.
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| 647 |
Sedimentology and stratigraphy of part of the Mesozoic Fossil Bluff Group, Alexander Island, AntarcticaButterworth, P. J. January 1988 (has links)
No description available.
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| 648 |
Displacement and segment linkage in fault zonesPeacock, David Charles Peter January 1992 (has links)
No description available.
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| 649 |
Deformation processes in accretionary wedgesNeedham, D. T. January 1984 (has links)
No description available.
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| 650 |
The origin and tectonic setting of serpentinites and related rocks in the Outokumpu assemblage of the Svecokarelides, Eastern FinlandPark, A. F. January 1983 (has links)
No description available.
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