Using sediment fingerprints to assess sediment-budget errors, North Halawa Valley, Oahu, Hawai, 1991-92
Aeolian features ; Aerosol ; Error ; Hawaii ; Methodology ; Sedimentbudget ; Suspended load ; Tropical zone ; Watershed
Reliable estimates of sediment-budget errors are important for interpreting sediment-budget results. The AA. modified the sediment fingerprinting approach to qualitatively evaluate compensating errors in an annual (1991) fine sedimentbudget
for the North Halawa Valley, a mountainous, forested drainage basin on the island of Oahu, during construction of a major highway. Sediment and aerosol budgets were developed using data collected in 1991. Differences between sediment-budget and aerosol-budget
imbalances provide a measure of compensating errors in the sedimentbudget.
Geographical information system ; Sedimentbudget ; Soil erosion ; Watershed
This issue of Physical Geography contains 6 papers that illustrate recent developments in the analysis of drainage basin sedimentbudgets. 5 will be presented in the Symposium on SedimentBudgets at the Third International Conference
An evaluation of two ten-year sedimentbudgets, Nahal Yael, Israel
Arid area ; Geomorphology ; Israel ; Negev ; Sedimentbudget ; Sediment load ; Suspended load ; Watershed
This paper compares a crude 10-year sedimentbudget published by Schick (1977) for Nahal Yael, a small hyper-arid drainage basin in the southern Negev Desert, with a second 10-year budget determined by more reliable methods. The comparison shows
that the original budget overestimated suspended sediment output by a factor of 4 and underestimated bed material output by a factor of 2. This paper emphasizes the difficulty of obtaining reliable estimates of sediment input to and output from a channel reach
Fluvial sedimentbudgets in the North Carolina Piedmont
Catchment area;Watershed ; Fluvial processes ; North Carolina ; Pollution ; Sedimentbudget ; Soil erosion ; United States
The purpose of this study is to estimate and examine rudimentary sedimentsbudgets for four river basins in the Piedmont physiographic province of North Carolina to determine the relative magnitude and importance of sediment storage.
The fate of eroded soil: sediment sinks and sedimentbudgets of agrarian landscapes in southern Minnesota, 1851-1988
Flood ; Floodplain ; Minnesota ; Palaeosol ; Sedimentbudget ; Sediment transport ; Soil erosion ; United States ; Watershed
This paper examines the fate of eroded soil by tracing the distribution of eroded sediment and constructing the sedimentbudgets of three medium-size drainage basins in southern Minnesota. This research attempts to improve our understanding
of sediment sinks and flux, of the dynamic resources of drainage basins, and of what has been called the sediment delivery problem.
A sedimentbudget of the lower Yellow River, China, over the period from 1855 to 1968
Carrying capacity ; China ; Delta ; Huang He ; Human impact ; Sedimentbudget ; Sediment transport ; Stream
The framework of the sedimentbudget includes 4 functional units with the upper and middle reaches of the river as the sediment source and its lower reaches, its delta, and the deep sea as the sediment sinks. Sediment yield from the source
and amounts of deposition in the lower Yellow River and the modern Yellow River delta were estimated for completing the sedimentbudget. The details of the sedimentbudget show that the importance of sedimentation in the lower Yellow River changed greatly
The sedimentbudget of the Lillooet River Basin, British Columbia
Biogenic process ; British Columbia ; Canada ; Mass movement ; Mountain ; Quaternary ; Sedimentbudget ; Soil erosion ; Spatial scale ; Stratigraphy ; Water balance ; Watershed ; Weathering
This paper attempts to demonstrate the flexibility of a sedimentbudget methodology and the value of a step by step approach. The steps that are followed are: an explicit recognition of the time scale of integration of the budget; a recognition
and quantification of the major transport processes and storages of sediment and solutes; and the complicating role of biotic factors,weathering, stratigraphy,hydrologic pathways, and spatial scale effects.
Present and future conditions of reservoir sedimentation
Sedimentological studies in the Cachi reservoir, Costa Rica. Sediment inflow, reservoir sedimentation, and effects of flushing
Applied hydrology ; Catchment area;Watershed ; Costa Rica ; Dam ; Hydraulic works ; Sedimentbudget ; Sedimentation ; Suspended load
Aménagement hydraulique ; Barrage-réservoir ; Bassin-versant ; Bilan sédimentaire ; Charge en suspension ; Costa Rica ; Hydrologie appliquée ; Sédimentation
The AA. present sedimentbudgets for the reservoir during different periods, based upon different methods applied in their investigations. Basic information is presented for the budgets on sediment inflow, flow conditions within the reservoir
, sediment deposition in the reservoir, throughflow of suspended material and evacuation during flushing.
Sediment storage and yield in an urbanized karst watershed
Cave ; Doline ; Karst ; Sedimentbudget ; Sediment transport ; Tennessee ; United States of America ; Urban area ; Watershed
This paper presents a preliminary assessment of fluvial sediment storage and yield in an urbanized, karst watershed. The AA. aim to identify and quantify the function of caves and sinkholes within the context of a sedimentbudget with 3 specific
the relative contribution of a major cave system to a preliminary sedimentbudget for a karst watershed.
objectives : to investigate the function (source or sink) of sinkholes with respect to sediment transport; to demonstrate how sinkhole sedimentation rates can be used as an indicator of basin sediment yield from some sinkhole drainage basins; and to determine
The distributed sedimentbudget model and watershed management in the Paleozoic Plateau of the Upper Midwestern United States
Floodplain ; Land use ; Model ; River management ; Sedimentbudget ; Soil erosion ; United States ; Watershed ; Wisconsin
The distributed sedimentbudget model describes the complex sediment storage fluxes of three basin zones (tributaries, upper main valley and lower main valley) in the Paleozoic Plateau of the Midwest and is therefore useful for purposes of watershed
management, especially for sediment-yield control. Each zone has distinctive morphological characteristics that reflect present and past.
Total sedimentbudget of a transgressive barrier-spit, Skallingen, SW Denmark : a review
Coastal environment ; Coastal geomorphology ; Denmark ; North Sea ; Photointerpretation ; Salt marsh ; Sand bar ; Sea level ; Sedimentbudget ; Sediment transport ; Shore platform
Based on a compilation of results from articles with new findings, the aim of the present review is to discuss the role of the processes of sediment transport in each of the morphological units to the total barrier spit sedimentbudget during
Sedimentbudgets and rates of sediment transfer across cold environments in Europe : a commentary
Climatic change ; Cold area ; Erosion ; Europe ; Model ; Northern Europe ; Periglacial features ; Permafrost ; Sedimentbudget ; Sediment transport
The aim of this short paper is to provide a personal commentary on some of the themes discussed in this Special Issue and highlight other key topics and areas of potential future importance : glacial sediment transfer processes; cold-region coastal
processes; cold climate solute dynamics; and the role of cold-tolerant ecosystems in conditioning sediment dynamics.
Sedimentbudget for an eroding peat-moorland catchment in northern England
England ; Erosion ; Gully erosion ; Peat bog ; Sedimentbudget ; Sediment transport ; United Kingdom ; Watershed
This paper describes a detailed contemporary sedimentbudget from a small peat-covered upland catchment in Upper Teesdale, northern England. The sedimentbudget was constructed by measuring : sediment transfers on slopes, sediment flux
on the floodplain and through the main stream channel and sediment yield at the catchment outlet. Measurements were taken over a four-year monitoring period between July 1997 and October 2001 when interannual variations in runoff were relatively small. Three sites
Modelling of water and sedimentbudget : concepts and strategies in Geomorphological models. Theoretical and empirical aspects.
This paper includes the basic ingredients of water and sedimentbudgets and offers a brief discussion on problems related to the concepts and strategies of flow models, namely, what are the parameters of water and sedimentbudget models, and what
is the nature of spatial variations of water and sediment flow models in terms of scale and different environmental conditions (geological, vegetational, climatic, anthropogenic).
Holocene sedimentbudgets for upland catchments : the problem of soilscape model and data availability
Sediment dynamics. Special issue
Germany ; Holocene ; Human impact ; Land use ; Model ; Periglacial features ; Rhineland-Palatinate ; Sedimentbudget ; Sedimentation rate ; Soil erosion ; Watershed
Action anthropique ; Allemagne ; Bassin-versant ; Bilan sédimentaire ; Erosion des sols ; Holocène ; Modèle ; Périglaciaire ; Rheinland-Pfalz ; Taux de sédimentation ; Utilisation du sol
This study presents a Holocene sedimentbudget for the upland catchment of the Speyerbach in the Palatinate Forest, southwestern Germany. The influences of both, data availability and the choice of an appropriate soilscape model on the sediment
budget calculations are investigated. For budget calculations the spatial distribution of soils was derived from the soil map 1:50,000. In order to model the sedimentbudget a reference soil thickness (a so-called soilscape model), which represents
thickness of the MSS is a crucial point. Therefore a statistical model using the local profile descriptions of the soil database for the Speyerbach catchment was set up. The error estimation for sedimentbudget based on the Speyerbach data is complicated
. Future work will address the estimation of human impact by the analysis of historical data and datings of colluvial layers as well as a field validation of the computed sedimentbudgets.
The role of impoundments in the sedimentbudget of the conterminous United States
Cultivated land ; Dam ; Hydraulic works ; Pond ; Reservoir ; Sedimentbudget ; Soil erosion ; United States of America ; Watershed
The AA. use the term impoundments to refer to artificial water bodies regardless of size (reservoirs and ponds). They examine the role of these small impoundments in the sedimentbudget, at the sub-continental scale. Specifically, they estimate
the total volume of sedimentation occurring in small impoundments and compare that quantity to other components of the fluvial sedimentbudget for the conterminous U.S. It is clear that most sedimentation is now taking place in subaqueous rather than
subaerial environments, and that small impoundments are a major sediment sink.
Sedimentbudgeting : a case study in the Katiorin drainage basin, Kenya
The primary objective of the present study is to compute a detailed sedimentbudget for a semiarid tropical drainage basin. This requires the recognition and quantification of the dominant process operating within the basin, and the identification
Streambank contribution to the sedimentbudget of a forest stream.
The primary aim of this thesis is the construction of a sedimentbudget for a small forested catchment, special emphasis being given to the contribution of streambank erosion. The study area forms part of the Keuper region of Central Luxemburg. (AIS).
The primary objectives of this initial study were to prepare sedimentbudgets for rill networks developed on a natural soil under simulated rainfall in a laboratory flume (University of Toronto, Scarborough), and identify the effect of confluences
on rill hydraulics and sediment flux patterns. Results indicate the value of detailed sedimentbudgets in interpreting their water and sediment flux records, and the necessity of linking such measurements for erosion plots and hillslope segments to rill