In this paper we describe a new type of subterranean habitat associated with dry watercourses in the Eastern Iberian Peninsula, the "Alluvial Mesovoid Shallow Substratum" (alluvial MSS). Historical observations and data from field sampling specially designed to study MSS fauna in the streambeds of temporary watercourses support the description of this new habitat. To conduct the sampling, 16 su...

Derivative maps generated from DEM's and panchromatic remote sensing data (TM Landsat 7 or SPOT) can be used to characterize surficial basin deposits in arid regions dominated by basin and range topography. Results indicate the technique is useful for rapid digital mapping of surficial deposits where a first order, systematic subdivision of bedrock, alluvial fan units, and playas is unavailable...

The results of some existing theoretical and experimental studies hydraulic resistances open flows in moving channels are considered. Possible reasons for the inconsistency various resistance with increased roughness indicated. analysis mass field data on Darcy (Shezi) coefficient canals alluvial soils a sandy mobile bed is carried out. It was confirmed that these categories characterized by mi...

Harris Wash, a tributary of the Escalante River in south-central Utah, has two wellpreserved alluvial terraces of compound origin in its lower reaches. The alluvial stratigraphy of the deposits that compose these terraces reflects the complex processes of canyon filling and erosion. The compound terraces were formed by general aggradation of the valley, by deposition from large floods that also...

[1] In a drainage network, sediment is transferred through a series of channel/valley segments (natural sediment storage reservoirs) that are distinguished from their neighbors by their particular capacity to store and transport sediment. We propose that the sediment transport capacity of each reservoir is a unique positive function of storage volume, which influences sediment mobility and avai...

Abstract The poor condition of river diversion channels can prevent mining companies from relinquishing their mine to the government after has ceased. Many regions lack a locally derived template for integrating appropriate geomorphic and hydraulic conditions unmodified into designs help guide post-mining closure activities. Establishing baseline reference criteria catchments restoration effort...

The geometry of alluvial river channels both controls and adjusts to the flow water sediment within them. This feedback between form modulates flood risk, impacts climate land-use change. Considering widely varying hydro-climates, supply, geology vegetation, it is surprising that rivers follow remarkably consistent hydraulic scaling relations. In this Perspective, we explore factors governing c...

In this study, the distribution of channel-bed sediment facies in the lowermost Mississippi River is analysed using multibeam data, complemented by sidescan sonar and compressed high-intensity radar pulse seismic data, as well as grab and core samples of bed material. The channel bed is composed of a discontinuous layer of alluvial sediment and a relict substratum that is exposed on the channel...