3D-geological structures with digital elevation models using GPU programming

Mateo-Lázaro, Jesús; Navarro, José Ángel Sánchez; García‐Gil, Alejandro; Romero, Vanesa Edo

doi:10.1016/j.cageo.2014.05.014

Cited by 25 publications

(10 citation statements)

References 31 publications

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“…Then, to this general scheme, a new model is added that estimates the contribution of water coming from snow reservoirs. Figure 1 shows the interface of the computer program which has been used in recent years in numerous professional works on risks, spatial planning, and civil and architectural works, as well as in scientific publications [47,48,[56][57][58][59][60][61][62][63]. The SHEE software has numerous applications for either DEM management or simulation of hydrological processes [64].…”

Section: Methodsmentioning

confidence: 99%

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Assessment of the Role of Snowmelt in a Flood Event in a Gauged Catchment

Mateo-Lázaro

Castillo-Mateo

Navarro

et al. 2019

Water

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An actual event that happened in the Roncal valley (Spain) is investigated and the results are compared between models with and without snowmelt. A distributed rainfall model is generated with the specific data recorded by the rain gauges of the catchment during the episode. To describe the process of water routing in the hydrological cycle of the basin, a model is used based on combinations of parallel linear reservoirs (PLR model), distribution by the basin, and tip-out into its drainage network configured using a digital terrain model (DTM). This PLR model allows simulation of the different actual reservoirs of the basin, including the snow and the contribution due to its melting which, in the model, depends on the temperature. The PLR model also allows for a water budget of the episode where, in addition to the effective rainfall contribution, the water that comes from the thaw is taken into account. The PLR model also allows determination of the amount of water that exists in the basin before and after the episode, data of great interest. When comparing the simulations with and without taking into account the thawing process, it is evident that the intervention of the snow reservoir has been decisive in causing a flood to occur.

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Section: Methodsmentioning

confidence: 99%

“…In the near future, it will allow development of combined hydrogeological models with complex subsurface structures. This implementation has resulted in the publication of Mateo-Lázaro [58]. Therein, we present an application that visualizes three-dimensional geological structures with digital terrain models.…”

Section: Methodsmentioning

confidence: 99%

Assessment of the Role of Snowmelt in a Flood Event in a Gauged Catchment

Mateo-Lázaro

Castillo-Mateo

Navarro

et al. 2019

Water

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“…Regarding the SHEE program, it derived from several publications, including those related to hydrology [48][49][50][51][52][53][54][55][56][57][58][59]. This program uses powerful libraries (e.g., OpenGL, GDI, GDAL, Proj4) for the management and display of DEM and datasets.…”

Section: Description Of the Shee Softwarementioning

confidence: 99%

Comparative Hydrodynamic Analysis by Using Two−Dimensional Models and Application to a New Bridge

Mateo-Lázaro

Castillo-Mateo

García‐Gil

et al. 2020

Water

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This document develops a methodology that evaluates the impact on the environment of the rivers produced by the creation of civil infrastructures. The methodology is based on the two-dimensional hydrodynamic calculation by using shallow water equations both in the conditions prior to the creation of the infrastructure, and in the new conditions after the infrastructure is created. Subsequently, several characteristics, such as water depth and velocity, among others, are compared between the initial and final conditions, and a two-dimensional zoning of the changes observed is obtained. The methodology herein presented is useful to verify the impact that the implantation of different infrastructures around the river currents could produce. In addition, it is also relevant for carrying out a study taking into account different infrastructure options related to river currents, as well as for selecting the most suitable one. By using the methodology presented, changes on the regime of the currents caused by the infrastructures can be deduced, including a qualitative and quantitative zoning of the changes, with a special emphasis on some characteristics, such as depth and velocity. The methodology is applied in a case study for the creation of a road bridge over the Jalon River in Spain.

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“…However, most of the above methods are complex and difficult to be achieved and it may loss precision in different degrees. Currently, the terrain algorithms based on CUDA for parallel computing [19À22] or based on OpenGL for rendering [23À25] have been more, and in some papers, the CUDAÀOpenGL interoperability [20,26,27] has been considered, some with the speedup to about a hundred times.…”

Section: Introductionmentioning

confidence: 99%

3D Terrain Real-time Rendering Method Based on CUDA-OpenGL Interoperability

Deng

Paul

2015

IETE Technical Review

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In the field of geographic information, fast surface modelling techniques are important. Usually, mesh model is used to describe the terrain. However, the large data of mesh model are a bottleneck of real-time rendering. Compared with the CPU, GPU has more execution units and memory units, which greatly improves its computing capacity and memory bandwidth. Meanwhile, in the field of image rendering, OpenGL has always played an important role. Since CUDA (compute unified device architecture) and OpenGL both run on GPU and share data through common memory, this paper gives a three-dimensional terrain real-time rendering method based on CUDAÀOpenGL interoperability. First, we use CUDA C kernel function to calculate the vertex coordinates and normal vectors, then we pass the data to OpenGL buffer, and render it. In this paper, we use share memory and register, overlap strategy, the expansion of concurrency and the reasonable block size. The experimental results show that this algorithm can improve the computing speed greatly, with the speedup to 212.3x, meeting the needs of real-time rendering.

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3D-geological structures with digital elevation models using GPU programming

Cited by 25 publications

References 31 publications

Assessment of the Role of Snowmelt in a Flood Event in a Gauged Catchment

Assessment of the Role of Snowmelt in a Flood Event in a Gauged Catchment

Comparative Hydrodynamic Analysis by Using Two−Dimensional Models and Application to a New Bridge

3D Terrain Real-time Rendering Method Based on CUDA-OpenGL Interoperability

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