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Jgrassnewage digital-watershed-model-component

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This document describes how to prepare a digital watershed model in JGrass-NewAGE, which is necessary for hydrological simulation. It involves extracting the river network and subbasins from a digital elevation model using tools in the JGrass spatial toolbox. The process includes pit filling, flow direction determination, channel extraction, and subbasin delineation. The outputs are shapefiles of the river network and subbasins along with topological information needed for rainfall-runoff modeling in JGrass-NewAGE.

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MODELING SOLUTION Digital watershed model in JGrass-NewAGE Wuletawu Abera* Correspondence: wuletawu979@gmail.com Dipartimento di Ingegneria Civile Ambientale e Meccanica, Trento, Mesiano di Povo, Trento, IT Full list of author information is available at the end of the article * Components Linker Abstract This pages illustrate how to prepare the digital watershed model (i.e the GIS representation of the topographic information that is used in hydrological simulation). This procedures requires basic knowledge of installing the OMS console. Digital watershed model (river network and subbasin) is the essential part for any distributed hydrological simulation. This operation is based on the JGrass spatial toolbox GIS. It extracts the basin, and provide subbasins and river channels information such as the Strahler, Hack, Pfafstetter information of the river links, and some topological information about each subbasin that are necessary for the rainfall-runo? component of JGrass-NewAge (Adige component). @Version: 0.1 @Date: 2016-06-28 @License: GPL v. 3 @Inputs: ? DEM ? pThres ? pMode (String) ? pNorth, pEast @Outputs: ? outNet [.shp] ? outBasins [.shp] @Doc author:: Wuletawu Abera @References: ? See reference section below Keywords: OMS; JGrass toolbox, Pfafstatter, HRU, subbasin, basin partition
Abera Page 2 of 5 Code Information The Scripting Code repository This points to the .sim ?le that builds the modeling solution https://drive.google.com/open?id=0B8taAom_i8q_N05UWkw0ZXhmYzg The jar ?les can be downloaded from: http://moovida.github.io/jgrasstools/ List of model components used Users¨ Info This contains point to the document that the Info more usable by users than de- velopers, i.e. information about the code usage http://www.github.com To whom address questions giuseppe.formetta@unical.it wuletawu979@gmail.com marialaura.bancheri@unitn.it Authors of documentation Wuletawu Abera (wuletawu979@gmail.com) This documentation is released under Creative Commons 4.0 Attribution International
Abera Page 3 of 5 Overall scope of the Modeling Solution This modelling solution is to prepare the GIS information that is needed for the other JGrass-NewAge components, particularly for ADIGE component. It uses dig- ital elevation model and follows a series of tasks that ranges from pit ?lling of the DEM to the ?nal extraction of the channels and subbasins or HRU, and each links are enumerated according to the Pfafstetter schemes. Detail description of is given in [1, 2] Components diagram The DWM component is base AGIGE component and the input is the DEM data, and location of the basin outlets. It combined a series of tools (more than 12 tools) and the connection between the tools is based on OMS3 framework. The graphical presentation of the work ?ow is presented in ?gure 1 Figure 1 Modelling Solution for the characterisation of basin partition Sim File Snippets import oms3 . SimBuilder as OMS3 def dir = oms prj def HM = ￣ org . j g r a s s t o o l s . hortonmachine . modules￣ def GEARS = ￣ org . j g r a s s t o o l s . gears ￣ OMS3. sim run (name :￣DWM￣ , { resource ￣ $oms prj / l i b ￣ model () { components { ￣ rasterReader ￣ ￣${GEARS}. io . r a s te r r e a d er . OmsRasterReader￣ ￣VectorReader￣ ￣${GEARS}. io . s h a p e f i l e . OmsShapefileFeatureReader ￣
Abera Page 4 of 5 ￣ subbsin rasterWritter ￣ ￣${GEARS}. io . r a s t e r w r i t e r . OmsRasterWriter￣ ￣ p i t f i l l e r ￣ ￣${HM}. demmanipulation . p i t f i l l e r . OmsPitfiller ￣ ￣ flowdir ￣ ￣${HM}. geomorphology . flow . OmsFlowDirections￣ ￣DrainDir￣ ￣${HM}. geomorphology . draindir . OmsDrainDir￣ ￣ markoutlets ￣ ￣${HM}. demmanipulation . markoutlets . OmsMarkoutlets￣ ￣ extractnetwork ￣ ￣${HM}. network . extractnetwork . OmsExtractNetwork￣ ￣ wateroutlet ￣ ￣${HM}. demmanipulation . wateroutlet . OmsWateroutlet￣ ￣ pitcutout ￣ ￣${GEARS}. modules . r . cutout . OmsCutOut￣ ￣netnumbering￣ ￣${HM}. network . netnumbering . OmsNetNumbering￣ ￣ networkattributes ￣ ￣${HM}. network . networkattributes . OmsNetworkAttributesBuild ￣ Basinshape ￣ ￣${HM}. basin . basinshape . BasinShape￣ ￣RastCat￣ ￣${GEARS}. modules . v . r a s t e r c a t t o f e a t u r e a t t r i b u t e . OmsRasterCatT ￣VectorReshaper￣ ￣${GEARS}. modules . v . vectorreshaper . OmsVectorReshaper￣ ￣ Writter V net ￣ ￣${GEARS}. io . s h a p e f i l e . OmsShapefileFeatureWriter ￣ ￣ Writter V basin ￣ ￣${GEARS}. io . s h a p e f i l e . OmsShapefileFeatureWriter ￣ } parameter { ￣ rasterReader . f i l e ￣ ￣${ dir }/ data/DEM. asc ￣ ￣ rasterReader . fileNovalue ￣ ￣ ?9999.0￣ ￣ subbsin rasterWritter . f i l e ￣ ￣${ dir }/ output/ subbassin . asc ￣ ￣ extractnetwork . pThres￣ 3000 // ￣netnumbering . pMode￣ 1 // ￣netnumbering . fPointId ￣ ￣Id￣ ￣RastCat . pPos￣ ￣MIDDLE￣ ￣RastCat . fNew￣ ￣netnum￣ ￣VectorReshaper . pCql￣ ￣￣￣netnum=round (netnum)￣￣￣ ￣ Writter V net . f i l e ￣ ￣${ dir }/ output/ Network final . shp￣ ￣ Writter V basin . f i l e ￣ ￣${ dir }/ output/ Subbasin final . shp￣ } connect { ￣ rasterReader . outRaster ￣ ￣ p i t f i l l e r . inElev ￣ ￣ p i t f i l l e r . outPit ￣ ￣ flowdir . inPit ￣ ￣ p i t f i l l e r . outPit ￣ ￣DrainDir . inPit ￣ ￣ flowdir . outFlow￣ ￣DrainDir . inFlow￣ ￣DrainDir . outFlow￣ ￣ markoutlets . inFlow￣ // extract the network r a s t e r map ￣DrainDir . outTca￣ ￣ extractnetwork . inTca￣ //￣ extractnetwork . outNet￣ ￣ rasterWritter . inRaster ￣ // v e c t o r i z e the network and various enumeration scheme ￣ p i t f i l l e r . outPit ￣ ￣ networkattributes . inDem￣ ￣ markoutlets . outFlow￣ ￣ networkattributes . inFlow￣ ￣ extractnetwork . outNet￣ ￣ networkattributes . inNet￣ ￣DrainDir . outTca￣ ￣ networkattributes . inTca￣ // ￣ networkattributes . outNet￣ ￣ Writter V net . geodata ￣
Abera Page 5 of 5 // extract the r a s t e r subbasin map ￣DrainDir . outTca￣ ￣netnumbering . inTca￣ ￣ markoutlets . outFlow￣ ￣netnumbering . inFlow￣ ￣ extractnetwork . outNet￣ ￣netnumbering . inNet￣ // ￣VectorReader . geodata ￣ ￣netnumbering . inPoints ￣ ￣netnumbering . outBasins ￣ ￣ subbsin rasterWritter . inRaster ￣ // ￣netnumbering . outNetnum￣ ￣ rasterWritter . inRaster ￣ // v e c t o r i z e the r a s t e r subbasin map ￣ p i t f i l l e r . outPit ￣ ￣ Basinshape . inElev ￣ ￣netnumbering . outBasins ￣ ￣ Basinshape . inBasins ￣ ￣ Basinshape . outBasins ￣ ￣ Writter V basin . geodata ￣ // add netnum ID to network coding system ￣netnumbering . outBasins ￣ ￣RastCat . inRaster ￣ ￣ networkattributes . outNet￣ ￣RastCat . inVector ￣ // round netnum ID to integer ￣RastCat . outVector ￣ ￣VectorReshaper . inVector ￣ // Finaly write the subbasin map ￣VectorReshaper . outVector ￣ ￣ Writter V net . geodata ￣ } } }) Data necessary to reproduce the MS The project that contain the DEM, the sim ?le and all the necessary jar ?le can be accessed at https://drive.google.com/open?id=0B8taAom_i8q_ NDhXZ2p3NXh3TzQ, and it is possible to do the basin partition automatically. References 1. Abera, W., Antonello, A., Franceschi, S., Formetta, G., Rigon, R.: The uDig Spatial Toolbox for Hydro-geomorphic Analysis, In: Clarke & nield (eds.) geomorphological techniques (online edition) edn. British Society for Geomorphology, London, UK (2014) 2. Formetta, G., Antonello, A., Franceschi, S., David, O., R., R.: The basin delineation and the built of a digital watershed model within the jgrass-newage system. Bolet?n Geol?gico y Minero: Special Issue ￣Advanced GIS terrain analysis for geophysical applications (2014)

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Jgrassnewage digital-watershed-model-component

  • 1. MODELING SOLUTION Digital watershed model in JGrass-NewAGE Wuletawu Abera* Correspondence: wuletawu979@gmail.com Dipartimento di Ingegneria Civile Ambientale e Meccanica, Trento, Mesiano di Povo, Trento, IT Full list of author information is available at the end of the article * Components Linker Abstract This pages illustrate how to prepare the digital watershed model (i.e the GIS representation of the topographic information that is used in hydrological simulation). This procedures requires basic knowledge of installing the OMS console. Digital watershed model (river network and subbasin) is the essential part for any distributed hydrological simulation. This operation is based on the JGrass spatial toolbox GIS. It extracts the basin, and provide subbasins and river channels information such as the Strahler, Hack, Pfafstetter information of the river links, and some topological information about each subbasin that are necessary for the rainfall-runo? component of JGrass-NewAge (Adige component). @Version: 0.1 @Date: 2016-06-28 @License: GPL v. 3 @Inputs: ? DEM ? pThres ? pMode (String) ? pNorth, pEast @Outputs: ? outNet [.shp] ? outBasins [.shp] @Doc author:: Wuletawu Abera @References: ? See reference section below Keywords: OMS; JGrass toolbox, Pfafstatter, HRU, subbasin, basin partition
  • 2. Abera Page 2 of 5 Code Information The Scripting Code repository This points to the .sim ?le that builds the modeling solution https://drive.google.com/open?id=0B8taAom_i8q_N05UWkw0ZXhmYzg The jar ?les can be downloaded from: http://moovida.github.io/jgrasstools/ List of model components used Users¨ Info This contains point to the document that the Info more usable by users than de- velopers, i.e. information about the code usage http://www.github.com To whom address questions giuseppe.formetta@unical.it wuletawu979@gmail.com marialaura.bancheri@unitn.it Authors of documentation Wuletawu Abera (wuletawu979@gmail.com) This documentation is released under Creative Commons 4.0 Attribution International
  • 3. Abera Page 3 of 5 Overall scope of the Modeling Solution This modelling solution is to prepare the GIS information that is needed for the other JGrass-NewAge components, particularly for ADIGE component. It uses dig- ital elevation model and follows a series of tasks that ranges from pit ?lling of the DEM to the ?nal extraction of the channels and subbasins or HRU, and each links are enumerated according to the Pfafstetter schemes. Detail description of is given in [1, 2] Components diagram The DWM component is base AGIGE component and the input is the DEM data, and location of the basin outlets. It combined a series of tools (more than 12 tools) and the connection between the tools is based on OMS3 framework. The graphical presentation of the work ?ow is presented in ?gure 1 Figure 1 Modelling Solution for the characterisation of basin partition Sim File Snippets import oms3 . SimBuilder as OMS3 def dir = oms prj def HM = ￣ org . j g r a s s t o o l s . hortonmachine . modules￣ def GEARS = ￣ org . j g r a s s t o o l s . gears ￣ OMS3. sim run (name :￣DWM￣ , { resource ￣ $oms prj / l i b ￣ model () { components { ￣ rasterReader ￣ ￣${GEARS}. io . r a s te r r e a d er . OmsRasterReader￣ ￣VectorReader￣ ￣${GEARS}. io . s h a p e f i l e . OmsShapefileFeatureReader ￣
  • 4. Abera Page 4 of 5 ￣ subbsin rasterWritter ￣ ￣${GEARS}. io . r a s t e r w r i t e r . OmsRasterWriter￣ ￣ p i t f i l l e r ￣ ￣${HM}. demmanipulation . p i t f i l l e r . OmsPitfiller ￣ ￣ flowdir ￣ ￣${HM}. geomorphology . flow . OmsFlowDirections￣ ￣DrainDir￣ ￣${HM}. geomorphology . draindir . OmsDrainDir￣ ￣ markoutlets ￣ ￣${HM}. demmanipulation . markoutlets . OmsMarkoutlets￣ ￣ extractnetwork ￣ ￣${HM}. network . extractnetwork . OmsExtractNetwork￣ ￣ wateroutlet ￣ ￣${HM}. demmanipulation . wateroutlet . OmsWateroutlet￣ ￣ pitcutout ￣ ￣${GEARS}. modules . r . cutout . OmsCutOut￣ ￣netnumbering￣ ￣${HM}. network . netnumbering . OmsNetNumbering￣ ￣ networkattributes ￣ ￣${HM}. network . networkattributes . OmsNetworkAttributesBuild ￣ Basinshape ￣ ￣${HM}. basin . basinshape . BasinShape￣ ￣RastCat￣ ￣${GEARS}. modules . v . r a s t e r c a t t o f e a t u r e a t t r i b u t e . OmsRasterCatT ￣VectorReshaper￣ ￣${GEARS}. modules . v . vectorreshaper . OmsVectorReshaper￣ ￣ Writter V net ￣ ￣${GEARS}. io . s h a p e f i l e . OmsShapefileFeatureWriter ￣ ￣ Writter V basin ￣ ￣${GEARS}. io . s h a p e f i l e . OmsShapefileFeatureWriter ￣ } parameter { ￣ rasterReader . f i l e ￣ ￣${ dir }/ data/DEM. asc ￣ ￣ rasterReader . fileNovalue ￣ ￣ ?9999.0￣ ￣ subbsin rasterWritter . f i l e ￣ ￣${ dir }/ output/ subbassin . asc ￣ ￣ extractnetwork . pThres￣ 3000 // ￣netnumbering . pMode￣ 1 // ￣netnumbering . fPointId ￣ ￣Id￣ ￣RastCat . pPos￣ ￣MIDDLE￣ ￣RastCat . fNew￣ ￣netnum￣ ￣VectorReshaper . pCql￣ ￣￣￣netnum=round (netnum)￣￣￣ ￣ Writter V net . f i l e ￣ ￣${ dir }/ output/ Network final . shp￣ ￣ Writter V basin . f i l e ￣ ￣${ dir }/ output/ Subbasin final . shp￣ } connect { ￣ rasterReader . outRaster ￣ ￣ p i t f i l l e r . inElev ￣ ￣ p i t f i l l e r . outPit ￣ ￣ flowdir . inPit ￣ ￣ p i t f i l l e r . outPit ￣ ￣DrainDir . inPit ￣ ￣ flowdir . outFlow￣ ￣DrainDir . inFlow￣ ￣DrainDir . outFlow￣ ￣ markoutlets . inFlow￣ // extract the network r a s t e r map ￣DrainDir . outTca￣ ￣ extractnetwork . inTca￣ //￣ extractnetwork . outNet￣ ￣ rasterWritter . inRaster ￣ // v e c t o r i z e the network and various enumeration scheme ￣ p i t f i l l e r . outPit ￣ ￣ networkattributes . inDem￣ ￣ markoutlets . outFlow￣ ￣ networkattributes . inFlow￣ ￣ extractnetwork . outNet￣ ￣ networkattributes . inNet￣ ￣DrainDir . outTca￣ ￣ networkattributes . inTca￣ // ￣ networkattributes . outNet￣ ￣ Writter V net . geodata ￣
  • 5. Abera Page 5 of 5 // extract the r a s t e r subbasin map ￣DrainDir . outTca￣ ￣netnumbering . inTca￣ ￣ markoutlets . outFlow￣ ￣netnumbering . inFlow￣ ￣ extractnetwork . outNet￣ ￣netnumbering . inNet￣ // ￣VectorReader . geodata ￣ ￣netnumbering . inPoints ￣ ￣netnumbering . outBasins ￣ ￣ subbsin rasterWritter . inRaster ￣ // ￣netnumbering . outNetnum￣ ￣ rasterWritter . inRaster ￣ // v e c t o r i z e the r a s t e r subbasin map ￣ p i t f i l l e r . outPit ￣ ￣ Basinshape . inElev ￣ ￣netnumbering . outBasins ￣ ￣ Basinshape . inBasins ￣ ￣ Basinshape . outBasins ￣ ￣ Writter V basin . geodata ￣ // add netnum ID to network coding system ￣netnumbering . outBasins ￣ ￣RastCat . inRaster ￣ ￣ networkattributes . outNet￣ ￣RastCat . inVector ￣ // round netnum ID to integer ￣RastCat . outVector ￣ ￣VectorReshaper . inVector ￣ // Finaly write the subbasin map ￣VectorReshaper . outVector ￣ ￣ Writter V net . geodata ￣ } } }) Data necessary to reproduce the MS The project that contain the DEM, the sim ?le and all the necessary jar ?le can be accessed at https://drive.google.com/open?id=0B8taAom_i8q_ NDhXZ2p3NXh3TzQ, and it is possible to do the basin partition automatically. References 1. Abera, W., Antonello, A., Franceschi, S., Formetta, G., Rigon, R.: The uDig Spatial Toolbox for Hydro-geomorphic Analysis, In: Clarke & nield (eds.) geomorphological techniques (online edition) edn. British Society for Geomorphology, London, UK (2014) 2. Formetta, G., Antonello, A., Franceschi, S., David, O., R., R.: The basin delineation and the built of a digital watershed model within the jgrass-newage system. Bolet?n Geol?gico y Minero: Special Issue ￣Advanced GIS terrain analysis for geophysical applications (2014)