Testing of V3.SUN Module Prototype for Solar Radiation Modelling on 3d Objects With Complex Geometric Structure

Kaňuk, Ján; Zubal, S.; Šupinský, Jozef; Šašak, Ján; Bombara, M.; Sedlák, Vladimír; Gallay, Michal; Hofierka, Jaroslav; Onačillová, Katarína

doi:10.5194/isprs-archives-xlii-4-w15-35-2019

Cited by 4 publications

(5 citation statements)

References 22 publications

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“…Liang et al [5] used a novel type of GPU ray casting technique accelerated with a sparse voxel octree to calculate solar irradiation on building surfaces in real-time, but the solution cannot accommodate large scenes due to video memory limitation. Kaňuk et al [6] recently developed a GRASS GIS r.sun extension to calculate solar irradiation on triangular irregular networks (TINs), which is a widely used GIS data format. As TINs by design are composed purely of contiguous, non-overlapping triangular facets, they are essentially a 2.5D representation of the 3D world and therefore are subject to loss of 3D geometric information.…”

Section: Related Workmentioning

confidence: 99%

Solar3D: A 3D Extension of GRASS GIS r.sun for Estimating Solar Radiation in Urban Environments

Liang¹,

Jianhua²,

Xie³

et al. 2020

Preprint

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Solar3D is an open-source software application designed to interactively calculate solar irradiation at three-dimensional (3D) surfaces in a virtual environment constructed with combinations of 3D city models, digital elevation models (DEMs), digital surface models (DSMs) and feature layers. The GRASS GIS r.sun solar radiation model computes solar irradiation based on two-dimensional (2D) raster maps for given day, latitude, surface and atmospheric conditions. With the increasing availability of 3D city models and demand for solar energy, there is an urgent need for better tools to computes solar radiation directly with 3D city models. Solar3D extends GRASS GIS r.sun from 2D to 3D by feeding the model with input, including surface slope, aspect and time-resolved shading, that is derived directly from the 3D scene using computer graphics techniques. To summarize, Solar3D offers several new features which, as a whole, distinguish itself from existing 3D solar irradiation tools: (1) the ability to consume massive heterogeneous 3D city models, including massive 3D city models such as oblique airborne photogrammetry-based 3D city models (OAP3Ds or integrated meshes); (2) the ability to perform near real-time pointwise calculation for duration from daily to annual; (3) the ability to integrate and interactively explore large-scale heterogeneous geospatial data. (4) the ability to calculate solar irradiation at arbitrary surface positions including at rooftops, facades and the ground. Solar3D is publicly available at https://github.com/jian9695/Solar3D.

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Section: Related Workmentioning

confidence: 99%

Solar3D: A 3D Extension of GRASS GIS r.sun for Estimating Solar Radiation in Urban Environments

Liang¹,

Jianhua²,

Xie³

et al. 2020

Preprint

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“…Many articles have been devoted to the calculation of potential solar radiation. Some of them focus on fundamental research of the calculation of potential solar radiation [5,[21][22][23][24]; others focus on its use in various applications [8,[25][26][27][28][29][30][31][32][33]. For example, [8] is devoted to the calibration and validation of the ArcGIS Solar Radiation tools for photovoltaic potential determination, focusing mainly on the input atmospheric parameters, diffusivity, and transmissivity but also pointing to the importance of spatial resolution in the calculation of potential solar radiation.…”

Section: Introductionmentioning

confidence: 99%

“…For example, [8] is devoted to the calibration and validation of the ArcGIS Solar Radiation tools for photovoltaic potential determination, focusing mainly on the input atmospheric parameters, diffusivity, and transmissivity but also pointing to the importance of spatial resolution in the calculation of potential solar radiation. According to [8], most GIS-based methods for calculating solar radiation are based on some form of geographic data, such as DEMs [10,11,21,22] or light detection and ranging (LiDAR) data [5,[24][25][26][27][28]. These methods also use different assumptions and therefore differ in terms of accuracy and performance [8].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Terrain Parameters and Spatial Resolution of a Digital Elevation Model on the Calculation of Potential Solar Radiation in the Mountain Environment: A Case Study of the Tatra Mountains

Ďuračiová

Pružinec

2022

IJGI

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Solar radiation significantly affects many processes on Earth. In situ measurements are demanding and require a dense network of sensors. A suitable alternative solution could be the modelling of potential solar radiation based on a digital elevation model (DEM) in geographic information systems. The key issue of this study is to determine the influence of the terrain parameters and the spatial resolution of a DEM on the calculation of potential solar radiation. The area of study is the Tatra Mountains (the highest mountains of the Carpathians). The DEM determined from light detection and ranging (LiDAR) was used. To determine the influence of the terrain, the following terrain parameters were applied: slope; aspect, represented by northness and eastness; elevation; and topographical position index using six different circular neighbourhoods (10 m, 30 m, 50 m, 100 m, 500 m, and 1000 m). The results indicate a moderate correlation (0.32–0.46) between the solar radiation calculation errors and the absolute values of the topographic position indices with small neighbourhoods (10 m–100 m). To show the impact of the spatial resolution, the calculation was performed based on four different DEM resolutions, namely 5 m, 10 m, 30 m, and 90 m. Mutual differences in potential solar radiation were quantified concerning the topographic position index. The result is also a model of potential annual solar radiation in the Tatra Mountains, calculated at a resolution of 5 m or 2 m.

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“…Liang et al [5] used a novel type of GPU ray casting technique accelerated with a sparse voxel octree to calculate solar irradiation on building surfaces in real time, but the solution cannot accommodate large scenes due to video memory limitation. Kaňuk et al [6] recently developed a GRASS GIS r.sun extension to calculate solar irradiation on triangular irregular networks (TINs), which is a widely used GIS data format. By design, TINs are composed purely of contiguous, non-overlapping triangular facets.…”

Section: Introductionmentioning

confidence: 99%

Solar3D: An Open-Source Tool for Estimating Solar Radiation in Urban Environments

Liang¹,

Gong

Xie

et al. 2020

IJGI

View full text Add to dashboard Cite

Solar3D is an open-source software application designed to interactively calculate solar irradiation on three-dimensional (3D) surfaces in a virtual environment constructed with combinations of 3D-city models, digital elevation models (DEMs), digital surface models (DSMs) and feature layers. The GRASS GIS r.sun solar radiation model computes solar irradiation based on two-dimensional (2D) raster maps for a given day, latitude, surface and atmospheric conditions. With the increasing availability of 3D-city models and demand for solar energy, there is an urgent need for better tools to computes solar radiation directly with 3D-city models. Solar3D extends the GRASS GIS r.sun model from 2D to 3D by feeding the model with input, including surface slope, aspect and time-resolved shading, which is derived directly from the 3D scene using computer graphics techniques. To summarize, Solar3D offers several new features that—as a whole—distinguish this novel approach from existing 3D solar irradiation tools in the following ways. (1) Solar3D can consume massive heterogeneous 3D-city models, including massive 3D-city models such as oblique airborne photogrammetry-based 3D-city models (OAP3Ds or integrated meshes); (2) Solar3D can perform near real-time pointwise calculation for duration from daily to annual; (3) Solar3D can integrate and interactively explore large-scale heterogeneous geospatial data; (4) Solar3D can calculate solar irradiation at arbitrary surface positions including on rooftops, facades and the ground.

show abstract

Testing of V3.SUN Module Prototype for Solar Radiation Modelling on 3d Objects With Complex Geometric Structure

Cited by 4 publications

References 22 publications

Solar3D: A 3D Extension of GRASS GIS r.sun for Estimating Solar Radiation in Urban Environments

Solar3D: A 3D Extension of GRASS GIS r.sun for Estimating Solar Radiation in Urban Environments

Effects of Terrain Parameters and Spatial Resolution of a Digital Elevation Model on the Calculation of Potential Solar Radiation in the Mountain Environment: A Case Study of the Tatra Mountains

Solar3D: An Open-Source Tool for Estimating Solar Radiation in Urban Environments

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