Results 221 to 230 of about 35,717 (263)

The Evolution of Drainage Water in Egypt

2017
When floodwater comes only once a year to flush the soil and leach the accumulated salts thoroughly, there was no need for any drainage projects. The irrigation in Egypt was practiced only on the scale of scattered basins spreading from south to north and from the river floodplain eastward and westward.
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Drainage Evolution on the Yunnan-Tibet Frontier

Geographical Review, 1919
A recent article1 on the drainage conditions in the region where the Salween, Mekong, and Yangtze are compressed within a space of 50 miles in their flow southward from the Tibetan Plateau is a bold, not to say a venturesome application of deductive geomorphology in an effort to give explanatory description of the river courses in a lofty mountain ...
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Evolution of the Drainage of Cauvery in South India

Journal Geological Society of India, 1971
Abstract It is now realised that the course of the river Cauvery in South India as observed is different from what it was during its inception during late Cretaceous or early Tertiary times. The upper part of the course over the Mysore plateau might have had only slight modifications both headward as well as laterally; but the lower part
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Evolution of physiography and drainage in southern Yukon

Canadian Journal of Earth Sciences, 1980
The physiography of southern Yukon is dominated by upland plateaux and plateau remnants that probably evolved in the Tertiary, culminating in a mature erosion surface about Miocene time. Variations in the elevation of this surface are thought to result from uneven uplift and faulting in the Late Miocene or Pliocene.
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Evolution of Drainage Systems in Response to Acadian Deformation

1987
Abstract The 2.3 km thick Lower Devonian Battery Point Formation conformably overlies shallow marine sandstones of the York River Formation and coarsens upward into proximal braidplain deposits of the Malbaie Formation. Whereas the lower part consists largely of west to northwesterlydraining distal sandy braidplain and meandering ...
David A. Lawrence, Brian P. J. Williams
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Stability and the conservation of mass in drainage basin evolution

Water Resources Research, 1972
Drainage basin evolution is modeled as the time development of an initial surface subject to conservation of sediment and water and a transport law qs = F(S, q) connecting the sediment flux qs with the local slope S and the discharge of surface water q. Two models are presented. The first is appropriate to a smooth surface on which no discrete channels
Terence R. Smith, Francis P. Bretherton
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Evolution of the New River drainage system, Westland

New Zealand Journal of Geology and Geophysics, 2001
Abstract The small catchment of the New (Paroa) River, on the West Coast of the South Island, displays a markedly asymmetrical drainage pattern which reflects its tectonic and Quaternary glacial history. Outwash from ice in the Taramakau valley and Lake Brunner basin during the Nemona Glaciation created a new surface on which the ...
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The global pattern of evolution of plasmaspheric drainage plumes

2005
We present observations of an 18 June 2001 erosion event obtained by the IMAGE extreme ultraviolet (EUV) imager. Following a 0304 UT southward turning of the interplanetary magnetic field (IMF), the plasmasphere on both nightside and dayside surged sunward, reducing the plasmasphere radius on the nightside and creating a broad drainage plume on the ...
J. Goldstein, B. R. Sandel
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The evolution of the drainage of the Fionn Loch area, Sutherland

Transactions of the Edinburgh Geological Society, 1956
Three lochs, Fionn, Veyatie and Cam, which occupy an elongated rock-basin on the western borders of Sutherland and Ross-shire, were once a continuous sheet of water, here called ‶Loch Suilven.″ Investigation of an extinct river, referred to as the Muirichinn, leads to the conclusion that it was by its channel that the overflow from ‶Loch Suilven″ was ...
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An invasion percolation model of drainage network evolution

Nature, 1991
STREAM networks evolve by headward growth and branching away from escarpments such as rift margins. The structure of these networks and their topographic relief are known to be fractal1–3, but no model so far has been able to generate the observed scaling properties.
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