Spatial Variability of Sediment Transport …
This study quantified the physical process contribution and relative importance of sea‐swell waves, infragravity waves, and mean currents to the spatial and temporal variability of sediment in suspension. Estimates of bed shear stresses demonstrate that sea‐swell waves are the key driver of the suspended sediment concentration (SSC) variability spatially (reef flat, lagoon, and channels) but …
Tempo-spatial variations of sediment-associated …
12.02.2018 · This study examined the temporal and spatial dynamics in particle size characteristics and the associated nutrients and contaminants of the fluvial suspended and deposited sediments along the Ruxi River. Temporal variations in the particle size distribution of the suspended sediment are controlled mainly by differences in sediment source during different seasons. …
Sediment Composition Influences Spatial …
14.11.2014 · Results from this study demonstrate that sediments represent a significant reservoir for PIB and that sediment characteristics (grain size and organic matter content) influence spatial variations in PIB abundance in estuarine environments. Here, clay and silt fractions comprised a higher organic matter content in comparison to medium and coarse sand and harboured significantly …
Spatial and temporal variability of sediment transfer and ...
Spatial and temporal variability of sediment transfer L. Schrott, J. Götz, M. Geilhausen, D. Morche 191 Lothar Schrott, Joachim Götz, Salzburg, Martin Geil-hausen, Bonn, David Morche, Halle 1 Introduction Spatial and temporal sediment flux within alpine sediment cascading systems is still poorly understood. Specific patterns of sediment storage types in alpine environments may be ...
Spatial variations of incoming sediments at the ...
Spatial variations of incoming sediments at the northeastern Japan arc and their implications for megathrust earthquakes Gou Fujie; Gou Fujie 1. Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama 236-0001, Japan . Search for other works by this author on: GSW. Google Scholar. Shuichi Kodaira; Shuichi Kodaira 1. Japan Agency for Marine-Earth Science and Technology …
Using spatial variations of stone size to reveal …
Thus, we hypothesized that interactions between fluvial-aeolian systems are believed to affect spatial variations of sediment stone size because fluvial system follow topographic lows and will therefore be routed through interdunes; however, aeolian process may winnow these interdune deposits and cause them to be mixed with upwind sources. To test this hypothesis and to gain a complete …
Recent Spatio-Temporal Variations of Suspended …
Their product, suspended sediment concentration (SSC), is involved in hydrology, geomorphology and ecology. This study was focused on the spatial and temporal variations of SSC in the Yangtze Estuary under new situations after the closure of ~50,000 dams in the Yangtze basin, including the Three Gorges Dam (TGD) in 2003. It was found that the SSC first exhibited an increasing and then a decreasing …
Spatial and temporal variations of sediment …
Sediment encircling a 165 m radius from the center of a farm in Yokota was judged as organically enriched by fish farming. A variation in sediment quality within the two sites and also within the stations was observed. Based on sediment quality, the stations could be categorized as less affected, highly affected or moderately affected.
Spatial variation in suspended sediment transport in the ...
Spatial variability has been considered in some parts of the Murray-Darling basin (Olive & Rieger, 1986) but this was based on limited data of doubtful accuracy. Also, Thorns & Walker (1991) have reported on spatial trends in sediment transport in the Murray River. In this stone spatial variability is examined along a 1200 km reach of the Murrumbidgee River. THE MURRUMBIDGEE BASIN The ...
Spatial and seasonal variations of organic carbon ...
Our results showed spatial and seasonal variations of sedimentary OC between different intertidal zones, which were primarily controlled by the preservation conditions (grain size). OC contents and carbon stocks were higher in the WS than the DS mainly due to higher inputs in the WS. Small estuary intertidal zones were characterized by higher sedimentary OC content and carbon stock owing to the …
Spatial and temporal variation of sediment yield …
The objective of this study, therefore, is to describe the spatial and temporal variation of sediment yield within a large basin with complex geology, climate, land use history and extensive sediment monitoring, in order to provide a new perspective on the spatial and temporal patterns of sediment yield. We first reduce the observations to a uniform reference area over the entire basin to …
Temporal and spatial variation of sediment yield in the ...
Temporal and spatial variation of sediment yield in the Snowy Mountains region, Australia BOFU YU Faculty of Environmental Sciences, Griffith University, Nathan, Queensland 4109, Australia DAVID NEIL Department of Geographical Sciences and Planning, University of Queensland, St Lucia, Queensland 4072, Australia Abstract The relationships between sediment concentration and discharge at 20 ...
SPATIAL VARIATIONS OF SUSPENDED SEDIMENT stone SIZE IN ...
SPATIAL VARIATIONS OF SUSPENDED SEDIMENT stone SIZE IN SMALL MOUNTAIN CATCHMENT DURING SUMMER FLOODS Abstract: The stone size of material transported during flood along the longitudinal profile of the small Carpathian stream (the Bystrzanka stream) and its main tributaries was examined. The silt frac- tion is the dominant material transported during floods. The …
Spatial variation of sediment mineralization …
Spatial variation of sediment mineralization supports differential CO 2 emissions from a tropical hydroelectric reservoir. Simone J. Cardoso 1,2*, Luciana O. Vidal 1, Raquel F. Mendonça 1, Lars J. Tranvik 3, Sebastian Sobek 3 and Fábio Roland 1,2. 1 Laboratory of Aquatic Ecology, Federal University of Juiz de Fora, Juiz de Fora, Brazil; 2 Department of Ecology, Program of Post Graduation in ...
Spatiotemporal dynamics of the archaeal ... - The …
04.03.2020 · Variation partitioning analysis performed to quantify the contribution of spatial and environmental factors to community variations in summer (a) and winter (b).
Spatial variation of the intertidal sediments and …
T1 - Spatial variation of the intertidal sediments and macrozoo-benthic assemblages along Eighty-mile Beach, North-western Australia. AU - Honkoop, Pieter J. C. AU - Pearson, Grant B. AU - Lavaleye, Marc S. S. AU - Piersma, Theunis. PY - 2006/5. Y1 - 2006/5
Spatial Variability of Sediment Denitrification Across the ...
Spatial Variability of Sediment Denitrification Across the Atchafalaya River Basin, Louisiana, USA Amy E. Scaroni & Charles W. Lindau & John A. Nyman Received: 22 March 2010 /Accepted: 20 July 2010 /Published online: 26 August 2010 # Society of Wetland Scientists 2010 Abstract Ecosystem-wide denitrification estimates gener-ally depend on the degree of spatial variability in the system, but ...
THE SPATIAL AND TEMPORAL VARIATION OF …
THE SPATIAL AND TEMPORAL VARIATION OF SEDIMENT YIELD AND RUNOFF IN BIDA WATERSHED. Content . TABLE OF CONTENTS. CHAPTER ONE. 1.0 INTRODUCTION. 1.1 Background of the study . 1.2STATEMENT OF PROBLEM. 1.3 AIM AND OBJECTIVES . 1.4 Justification . 1.5 Scope . CHAPTER TWO. 2.0 Literature Review. 2.1 Watershed Hydrology 2.2 ...
Spatial Variation in Sediment-Water Exchange of …
Adenosine monophosphate (AMP) was employed as a model DOP compound to simulate phosphorus exchange across sediment-water interface in Florida Bay. The sorption data from 40 stations were fitted to a modified Freundlich equation and provided a detailed spatial distribution both of the sediment’s zero equilibrium phosphorus concentration (EPC 0-T ) and of the distribution coefficient ( K d-T ...
INVESTIGATION OF THE SPATIAL AND …
In this research, an hydrological modelling tool, soil and water assessment tool (SWAT) used to investigate the spatial and temporal variation of sediment yield in a watershed. The model was run for 31years using spatial data such as Digital Elevation Model, soil map, land use and precipitation, wind and solar radiation. The results showed that the maximum value of surface Runoff was estimated ...