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A data porting tool for coupling models with different discretization needs |
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| Affiliation: | 1. Biology, The Life Science Center, School of Science and Technology, Örebro University, SE-701 82 Örebro, Sweden;2. BioImpakt AB, Drevevägen 18C, SE-70510 Örebro, Sweden;3. Envix Nord AB, Kylgränd 4 A, SE-906 20 Umeå, Sweden;1. Faculty of Mechanical Engineering, Urmia University of Technology, Band Road, POB 57155-419, Urmia, Iran;2. College of Engineering, Swansea University, Bay Campus Fabian Way, Crymlyn Burrows, Swansea SA1 8EN, Wales, UK |
| Abstract: | The presented work is part of a larger research program dealing with developing tools for coupling biogeochemical models in contaminated landscapes. The specific objective of this article is to provide researchers with a data porting tool to build hexagonal raster using information from a rectangular raster data (e.g. GIS format). This tool involves a computational algorithm and an open source software (written in C). The method of extending the reticulated functions defined on 2D networks is an essential key of this algorithm and can also be used for other purposes than data porting. The algorithm allows one to build the hexagonal raster with a cell size independent from the geometry of the rectangular raster. The extended function is a bi-cubic spline which can exactly reconstruct polynomials up to degree three in each variable. We validate the method by analyzing errors in some theoretical case studies followed by other studies with real terrain elevation data. We also introduce and briefly present an iterative water routing method and use it for validation on a case with concrete terrain data. |
| Keywords: | Raster data Interpolation Cubic polynomials Hexagonal raster Hydrological modelling Water routing CRS"} {"#name":"keyword" "$":{"id":"kwrd0045"} "$$":[{"#name":"text" "_":"Catmull-Rom Spline DEM"} {"#name":"keyword" "$":{"id":"kwrd0055"} "$$":[{"#name":"text" "_":"Digital Elevation Model DP"} {"#name":"keyword" "$":{"id":"kwrd0065"} "$$":[{"#name":"text" "_":"Data Porting DTM"} {"#name":"keyword" "$":{"id":"kwrd0075"} "$$":[{"#name":"text" "_":"Digital Terrain Model ENO"} {"#name":"keyword" "$":{"id":"kwrd0085"} "$$":[{"#name":"text" "_":"Essentially Non-Oscillating GIS"} {"#name":"keyword" "$":{"id":"kwrd0095"} "$$":[{"#name":"text" "_":"Geographic Information System LiDAR"} {"#name":"keyword" "$":{"id":"kwrd0105"} "$$":[{"#name":"text" "_":"Light Detection And Ranging OF"} {"#name":"keyword" "$":{"id":"kwrd0115"} "$$":[{"#name":"text" "_":"Outlier Filtering PDEs"} {"#name":"keyword" "$":{"id":"kwrd0125"} "$$":[{"#name":"text" "_":"Partial Differential Equations |
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