Effect of land surface elevation data availability on river hydraulic model output

Date

2018-04-13

Author

Göktaş, Recep Kaya
Ayvaz, Mustafa Tamer
Kargı, Pınar Gökçe
Kentel Erdoğan, Elçin
Mesta, Buket
Tezyapar, İpek
Tezel, Ulaş

Metadata

Show full item record

Item Usage Stats

80
views

0
downloads

River hydraulic models are useful tools in watershed management. They are critical components of flood planning studies, and are prerequisites for pollution transport modeling. One of the critical parameters in modeling river hydraulics is the river channel slope. When the river system of a large watershed is of concern, the land surface elevation data can be used to create the river network and to determine the slopes of the river channels. Digital elevation maps (DEMs) created by using remote observations, together with GIS tools provide an easy way to delineate the river network and to determine the river channel slopes. However, the validity of the resultant model parameterization is very much dependent on the resolution and the accuracy of the DEM data. The alternative to using DEM data based on remote sensing is to use actual site elevation measurements throughout the river network. Although this alternative has the potential to provide more accurate results, collecting and compiling measurement data in the adequate resolution may not be economically feasible if the data is not already available, especially in case of developing countries.

URI

https://meetingorganizer.copernicus.org/EGU2018/EGU2018-14885.pdf
https://hdl.handle.net/11511/72373

Conference Name

European Geosciences Union General Assembly 2018, (8 - 13 Nisan 2018)

Collections

Department of Civil Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Effect of geosynthetic reinforcement on the bearing capacity of strip footing on sandy soil Al-Subari, L.; Hanafi, M.; Ekinci, A. (2020-08-01) Due to the increasing presence of problematic soils, expansive clays and highly compressive sand engineers are using a verity of soil improvement techniques to treat such soils. While geosynthetics are extensively used for improving soil characteristics in roads, pavements and embankments, it can also be used to increase the lack of bearing capacity of residential housing or lightweight structures constructed on sandy soils. In order to simulate site conditions in the laboratory environment, a laboratory-sc...
Effects of installation on the cyclic axial behaviour of suction buckets in sandy soils Taşan, Hacı Ercan; Yilmaz, S. Alp (Elsevier BV, 2019-10-01) Suction buckets differ with their easy and cost-efficient installation technique from other foundation types for offshore wind turbines. For successful completion of their installation process, suction is essential, but the imposed seepage leads to the changes in states of the soil in and around the bucket. Especially, a loosening of soil inside the bucket affects the load carrying behaviour of bucket subjected to repetitive loading resulting from environmental conditions. In this study, the behaviour of bu...
Effects of Soil Bridge Interaction and Abutment Deck Continuity on the Live Load Distribution Factors in Integral Bridge Components Erhan, Semih; Dicleli, Murat (2009-10-01) In this study, the effects of soil bridge interaction and abutment deck continuity on the live load distribution in integral bridge components are studied. For this purpose, 2-D and 3-D structural models of typical integral and conventional bridges having various structural, geometric and geotechnical properties are built. The analyses of the models are then conducted under AASHTO live load. The analyses results revealed that soil-bridge interaction has significant effects on the live load distribution in a...
Impact of hydrologic uncertainties in reservoir routing Kentel Erdoğan, Elçin; Yanmaz, Ali Melih (null; 2008-05-27) Reservoir routing methods are used in the design and operation of storage facilities at high flow conditions. Traditionally, deterministic approaches have been used for reservoir flood routing computations, which do not account for possible variations in governing parameters. However, hydrologic variables, such as inflow, stage, and outflow may naturally have various sources of uncertainties. Since important dimensions, such as dam height and spillway size, are normally dictated by reservoir routing perform...
Effects of mixture design parameters and compaction methods on the properties of roller compacted concrete pavements Şengün, Emin; Yaman, İsmail Özgür; Department of Civil Engineering (2019) The aim of the thesis is to develop laboratory compaction methodology suitable for simulating field compaction procedures used for creating roller compacted concrete (RCC) mixtures. Based on this methodology, mechanical performance and fracture properties of RCC mixtures of different strength classes were determined and long-term fatigue performance of RCC mixtures with different strength levels was investigated. In this context, a three-phase experimental study was designed. First, mixtures with different ...

Citation Formats

R. K. Göktaş et al., “Effect of land surface elevation data availability on river hydraulic model output,” Viyana, Avusturya, 2018, vol. 20, Accessed: 00, 2021. [Online]. Available: https://meetingorganizer.copernicus.org/EGU2018/EGU2018-14885.pdf.