Effati A.,Interstate Stream Commission |
Malek A.M.,Yekom Consulting Engineers Co. |
Seyf S.,Yekom Consulting Engineers Co. |
Karaji A.,Yekom Consulting Engineers Co.
Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2014 | Year: 2014
Riverine Sand and gravel are of the main construction materials in civil projects in Iran, due to availability, easy processing and low costs. While an effective mining can enhance the river functionality, regional water authorities in Iran have always been concerned about potential damages to river beds because of excessive mining. In this regard, a feasibility study was conducted on four rivers in Bushehr Province to identify reaches for regulated sand and gravel mining. Five sub-disciplines of geology, socio-economy, morphology, hydraulics, and sedimentation-erosion were elaborated and the pertinent data were entered into GIS, processed and weighted. Using an integrated model of GIS and a Multi-Criteria Decision-Making (MCDM) method, the scores of each reach were calculated and the potentially suitable reaches were selected. Finally, the results were verified by field visits and validated with national guidelines and regulations. The desktop results showed an average of 82% compliance with the field results. © 2014 Taylor & Francis Group, London. Source
Kinzli K.-D.,Florida Gulf Coast University |
Shafike N.,Interstate Stream Commission |
Bauer P.,New Mexico Institute of Mining and Technology |
Lundahl A.,Interstate Stream Commission |
And 4 more authors.
River Research and Applications | Year: 2013
The section of the upper Rio Grande in New Mexico is important to downstream water management and the administration of water rights. It has long been believed that this remote reach of the Rio Grande is characterized by significant groundwater accretions, which contribute to water available for downstream uses. This study focused on the uppermost 30miles of the Rio Grande in New Mexico seeking to establish locations of groundwater accretions in the reach and document magnitude of gain. In order to quantify the accretion of the upper Rio Grande, an expedition using inflatable kayaks, an acoustic Doppler current profiler (ADCP) and an electromagnetic meter was carried out in the fall of 2008 when natural surface flow was low. The study area covered a stretch of 31miles. The expedition was able to determine that the total accretion of this stretch of the Rio Grande was 22ft3s-1 with an average accretion rate of 0.73ft3s-1mile-1. Most of the reach exhibited minimal gain or loss, and most of the accretion was centred in Sunshine Valley. One of the most significant results was encountering a large artesian, subaqueous spring, which might be the largest documented spring in New Mexico and contributes nearly 50% of the accretion in the reach. The study was also able to characterize the exact locations of other significant groundwater inputs. In addition to quantifying the accretion of part of the upper Rio Grande, the study provides the framework for using advanced technology in the form of an ADCP to determine river accretions in remote locations. ADCPs offer the benefit of reducing measurement time and measurement error, collect high-resolution data and are non-intrusive. Overall, the use of ADCP technology to determine river accretion offers an improvement over traditional methods, and it is the hope of the authors that this technology is utilized for river accretion studies in the future. © 2011 John Wiley & Sons, Ltd. Source