First-order drainage basin morphology—definition and distribution

1980 ◽  
Vol 5 (4) ◽  
pp. 389-398 ◽  
Author(s):  
Alan Marcus
Keyword(s):  
Drainage Basin ◽  
First Order ◽  
Basin Morphology

scholarly journals Climate, tectonics or morphology: what signals can we see in drainage basin sediment yields?

2013 ◽  
Vol 1 (1) ◽  
pp. 13-27 ◽  
Author(s):  
T. J. Coulthard ◽  
M. J. Van de Wiel
Keyword(s):  
Sediment Yield ◽  
Drainage Basin ◽  
Sediment Yields ◽  
Internal Storage ◽  
Storage Effects ◽  
Climatic Drivers ◽  
Basin Morphology ◽  
The Impact ◽  
Small Basin

Abstract. Sediment yields from river basins are typically considered to be controlled by tectonic and climatic drivers. However, climate and tectonics can operate simultaneously and the impact of autogenic processes scrambling or shredding these inputs can make it hard to unpick the role of these drivers from the sedimentary record. Thus an understanding of the relative dominance of climate, tectonics or other processes in the output of sediment from a basin is vital. Here, we use a numerical landscape evolution model (CAESAR) to specifically examine the relative impact of climate change, tectonic uplift (instantaneous and gradual) and basin morphology on sediment yield. Unexpectedly, this shows how the sediment signal from significant rates of uplift (10 m instant or 25 mm a−1) may be lost due to internal storage effects within even a small basin. However, the signal from modest increases in rainfall magnitude (10–20%) can be seen in increases in sediment yield. In addition, in larger basins, tectonic inputs can be significantly diluted by regular delivery from non-uplifted parts of the basin.

Drainage basin morphology

1979 ◽  
Vol 3 ◽  
pp. 243-244
Author(s):  
C. Embleton
Keyword(s):  
Drainage Basin ◽  
Basin Morphology

Drainage basin morphology

1979 ◽  
Vol 41 (1-2) ◽  
pp. 192-193
Author(s):  
Christopher P. Green
Keyword(s):  
Drainage Basin ◽  
Basin Morphology

scholarly journals Mapping mean and variance of runoff in a river basin

2006 ◽  
Vol 3 (2) ◽  
pp. 299-333 ◽  
Author(s):  
L. Gottschalk ◽  
I. Krasovskaia ◽  
E. Leblois ◽  
E. Sauquet
Keyword(s):  
River Runoff ◽  
Drainage Basin ◽  
Focal Point ◽  
Mean Value ◽  
Order Moment ◽  
Time Interval ◽  
Observation Data ◽  
First Order ◽  
Time Space

Abstract. The study presents an approach to depict the two first order moments of runoff as a function of area (and thus on a map). The focal point is the mapping of the statistical properties of runoff q=q(A,D) in space (area A) and time (time interval D). The problem is divided into two steps. Firstly the first order moment (the long term mean value) is analysed and mapped applying an interpolation procedure for river runoff. In a second step a simple random model for the river runoff process is proposed for the instantaneous point runoff normalised with respect to the long term mean. From this model theoretical expressions for the time-space variance-covariance of the inflow to the river network are developed, which then is used to predict how the second order moment vary along rivers from headwaters to the mouth. The observation data are handled in the frame of a hydrological information system HydroDem, which allows displaying the results either in the form of area dependence of moments along the river branches to the basin outlet or as a map of the variation of the moments across the basin space. The findings are demonstrated on the example of the Moselle drainage basin (French part).

Migrations and the Early Human Ecology of the Southeastern Atlantic Slope

2018 ◽  
pp. 309-322
Author(s):  
Joseph Schuldenrein
Keyword(s):  
Human Ecology ◽  
Drainage Basin ◽  
Soil Morphology ◽  
Similar Time ◽  
Dating Methods ◽  
Time Periods ◽  
Basin Morphology ◽  
River Valleys ◽  
Early Human ◽  
The U.S

The analytic sophistication demonstrated in this volume can be traced back to pioneering works in studies of prehistoric human ecology and what is now recognized as geoarchaeology. The combining of several subfields in geology, geomorphology, hydrology, soil morphology, and advanced dating methods have resulted in the realization of many of the aspirations of the inter-disciplinary research that was advocated for in previous decades. This chapter contrasts the drainage basin morphology along the lower Southeastern U.S., with its expansive Coastal Plains stands, with the shorter river valleys in the northeast, which are controlled by bedrock. The alluvial valleys in the Southeast combined with the milder climates throughout the Pleistocene set this area of the U.S. apart for prime geomorphological and geoarchaeological studies. These regions are contrasted with landforms in the near East at similar time periods, emphasizing the value in global comparisons.

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