Potenza, 17 Dicembre 2010      Master PROIDRO - Corso di Modellazione IdrologicaIntroduzione alluso di GRASS GIS  per la m...
GRASS = Geographic Resources                   Analysis Support System                         http://grass.fbk.eu/GIS = G...
Organization of dataGRASS DATA SET                         GRASSDATA                                                      ...
North Carolina (NC, USA) data set                                      Raster, vector and satellite data# Vector data incl...
GUI (graphical user interface)                          Path to                       GRASS data set                      ...
GUI (graphical user interface)Map Display                                      Layer Manager                         Map L...
GUI (graphical user interface)                                           Layer ManagerMap Layers                 Search mo...
Current region (g.region -p)
Set region (g.region) g.region rast=elevation@PERMANENT -p
Query                         Visualization                                           Add raster layerDisplay             ...
Slope & aspect (r.slope.aspect)r.slope.aspect elevation=elevation@PERMANENT slope=pendenza aspect=esposizione
Slope & aspect (r.slope.aspect)r.slope.aspect elevation=elevation@PERMANENT slope=pendenza aspect=esposizione
Slope & aspect (r.slope.aspect)r.slope.aspect elevation=elevation@PERMANENT slope=pendenza aspect=esposizione
Hydrologic Analysis (r.watershed)r.watershed elevation=elevation@PERMANENT accumulation=accumulidrainage=drenaggio streams...
Hydrologic Analysis (r.watershed)r.watershed elevation=elevation@PERMANENT accumulation=accumulidrainage=drenaggio streams...
Hydrologic Analysis (r.watershed)r.watershed elevation=elevation@PERMANENT accumulation=accumulidrainage=drenaggio streams...
Hydrologic Analysis (r.watershed)                                Streamsr.watershed elevation=elevation@PERMANENT accumula...
Hydrologic Analysis (r.watershed)                                                                     Drainage            ...
Hydrologic Analysis (r.watershed)                                                                      Flow               ...
Raster to vector mapr.thin input=fiumi output=fiumi_thin
Raster to vector mapr.to.vect input=fiumi_thin output=reticolo feature=line
Raster to vector mapr.to.vect input=fiumi_thin output=reticolo feature=line
Raster to vector mapr.to.vect input=fiumi_thin output=reticolo feature=line
Comparison with “real” streamsLayers: Lakes, streams
Comparison with “real” streamsLayers: Lakes, streams
Comparison with “real” streamsLayers: Lakes, streams, elevation, fiumi
Comparison with “real” streamsLayers: Lakes, streams, elevation, fiumi
Delimitation of the basin                     (r.water.outlet)r.water.outlet drainage=drenaggio basin=bacino easting=64367...
Delimitation of the basin                     (r.water.outlet)r.water.outlet drainage=drenaggio basin=bacino easting=64367...
Delimitation of the basin                     (r.water.outlet)r.water.outlet drainage=drenaggio basin=bacino easting=64367...
Delimitation of the basin                     (r.water.outlet)r.water.outlet drainage=drenaggio basin=bacino easting=64367...
Questions?
License of this document             This work is licensed under a Creative Commons License.                         http:...
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Lezione master Proidro - Modellazione idrologica con GRASS GIS 17/12/2010

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Laboratorio del corso di modellazione idrologica - uso di GRASS GIS per la delimitazione di un bacino idrografico

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Lezione master Proidro - Modellazione idrologica con GRASS GIS 17/12/2010

  1. 1. Potenza, 17 Dicembre 2010 Master PROIDRO - Corso di Modellazione IdrologicaIntroduzione alluso di GRASS GIS per la modellazione idrologica Ing. Margherita Di Leo
  2. 2. GRASS = Geographic Resources Analysis Support System http://grass.fbk.eu/GIS = Geographic Information SystemOpen Source SoftwareDownload:http://grass.fbk.eu/download/software.phpSample data download:http://www.grassbook.org/data_menu3rd.php
  3. 3. Organization of dataGRASS DATA SET GRASSDATA Gauss-LOCATION UTM33WGS84 UTM33ED50 BoagaRoma40 FusoEstMAPSET USER1 USER2 USER1 USER1 PERMANENT PERMANENT PERMANENT
  4. 4. North Carolina (NC, USA) data set Raster, vector and satellite data# Vector data include administrative boundaries, census data, zipcodes, firestations, hospitals, roads and railroads,public schools and colleges, bus routes, points of interest, precipitation, hydrography maps, geodetic points, soilsand geological maps.# Raster data include elevation (NED 3arc-sec, SRTM-V1 30m, lidar derived DEMs at 1m and 6m), slope, aspect,watershed basins, geology, and landuse. The resolution of raster maps is 500m, 30m, 10m, and 1m.# Imagery data include 1m resolution orthophoto, several LANDSAT-TM5/7 scenes and a MODIS daily LandSurface Temperature (LST) time series.# Also multiple-return lidar data are included
  5. 5. GUI (graphical user interface) Path to GRASS data set Location Mapset Start
  6. 6. GUI (graphical user interface)Map Display Layer Manager Map Layers Command console Search module Terminal
  7. 7. GUI (graphical user interface) Layer ManagerMap Layers Search module Command console
  8. 8. Current region (g.region -p)
  9. 9. Set region (g.region) g.region rast=elevation@PERMANENT -p
  10. 10. Query Visualization Add raster layerDisplay Add raster layer Show attribute Zoom table Layer Coords
  11. 11. Slope & aspect (r.slope.aspect)r.slope.aspect elevation=elevation@PERMANENT slope=pendenza aspect=esposizione
  12. 12. Slope & aspect (r.slope.aspect)r.slope.aspect elevation=elevation@PERMANENT slope=pendenza aspect=esposizione
  13. 13. Slope & aspect (r.slope.aspect)r.slope.aspect elevation=elevation@PERMANENT slope=pendenza aspect=esposizione
  14. 14. Hydrologic Analysis (r.watershed)r.watershed elevation=elevation@PERMANENT accumulation=accumulidrainage=drenaggio streams=fiumi threshold=1000
  15. 15. Hydrologic Analysis (r.watershed)r.watershed elevation=elevation@PERMANENT accumulation=accumulidrainage=drenaggio streams=fiumi threshold=1000
  16. 16. Hydrologic Analysis (r.watershed)r.watershed elevation=elevation@PERMANENT accumulation=accumulidrainage=drenaggio streams=fiumi threshold=1000
  17. 17. Hydrologic Analysis (r.watershed) Streamsr.watershed elevation=elevation@PERMANENT accumulation=accumulidrainage=drenaggio streams=fiumi threshold=1000
  18. 18. Hydrologic Analysis (r.watershed) Drainage (Flow direction)r.watershed elevation=elevation@PERMANENT accumulation=accumulidrainage=drenaggio streams=fiumi threshold=1000
  19. 19. Hydrologic Analysis (r.watershed) Flow accumulationr.watershed elevation=elevation@PERMANENT accumulation=accumulidrainage=drenaggio streams=fiumi threshold=1000
  20. 20. Raster to vector mapr.thin input=fiumi output=fiumi_thin
  21. 21. Raster to vector mapr.to.vect input=fiumi_thin output=reticolo feature=line
  22. 22. Raster to vector mapr.to.vect input=fiumi_thin output=reticolo feature=line
  23. 23. Raster to vector mapr.to.vect input=fiumi_thin output=reticolo feature=line
  24. 24. Comparison with “real” streamsLayers: Lakes, streams
  25. 25. Comparison with “real” streamsLayers: Lakes, streams
  26. 26. Comparison with “real” streamsLayers: Lakes, streams, elevation, fiumi
  27. 27. Comparison with “real” streamsLayers: Lakes, streams, elevation, fiumi
  28. 28. Delimitation of the basin (r.water.outlet)r.water.outlet drainage=drenaggio basin=bacino easting=643677.87northing=222800.246
  29. 29. Delimitation of the basin (r.water.outlet)r.water.outlet drainage=drenaggio basin=bacino easting=643677.87northing=222800.246
  30. 30. Delimitation of the basin (r.water.outlet)r.water.outlet drainage=drenaggio basin=bacino easting=643677.87northing=222800.246
  31. 31. Delimitation of the basin (r.water.outlet)r.water.outlet drainage=drenaggio basin=bacino easting=643677.87northing=222800.246
  32. 32. Questions?
  33. 33. License of this document             This work is licensed under a Creative Commons License.                         http://creativecommons.org/licenses/by­sa/3.0/                                      2010, Margherita Di Leo, Italy                                      dileomargherita AT gmail DOT comLicense details: Attribution­ShareAlike 3.0:You are free:  * to Share — to copy, distribute and transmit the work  * to Remix — to adapt the work Under the following conditions:  * Attribution — You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).  *Share Alike — If you alter, transform, or build upon this work, you may distribute the resulting work only under the same, similar or a compatible license.With the understanding that:  * Waiver — Any of the above conditions can be waived if you get permission from the copyright holder.  * Other Rights — In no way are any of the following rights affected by the license:       o Your fair dealing or fair use rights;       o The authors moral rights;       o Rights other persons may have either in the work itself or in how the work is used, such as publicity or privacy rights.

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