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| #------------------------------------------------------------------------------- | ||
| # Mr Chingchai Humhong | ||
| # Assoc Prof Dr Chada Narongrit | ||
| # Tue Jun 27 13:30:33 2017 | ||
| # [email protected], [email protected], [email protected] | ||
| # GISTNU @ Naresuan University | ||
| # MIT@License | ||
| # github : https://github.com/sanchangon | ||
| # __________ ___ __________ ______________ | ||
| # / ____/ __ \/ | / ___/ ___/ / ____/ _/ ___/ | ||
| # / / __/ /_/ / /| | \__ \\_ \ / / __ / / \__ \ | ||
| # / /_/ / _, _/ ___ |___/ /__/ / / /_/ // / ___/ / | ||
| # \____/_/ |_/_/ |_/____/____/ \____/___//____/ | ||
| # Welcome to GRASS GIS 7.2.1 | ||
| # GRASS GIS homepage: http://grass.osgeo.org | ||
| #------------------------------------------------------------------------------- | ||
| # set region | ||
| g.region -d -p raster=gdem@PERMANENT | ||
| projection: 1 (UTM) | ||
| zone: 47 | ||
| datum: wgs84 | ||
| ellipsoid: wgs84 | ||
| north: 2172156.988224 | ||
| south: 1735836.988224 | ||
| west: 558429.85386551 | ||
| east: 748109.85386551 | ||
| nsres: 40 | ||
| ewres: 40 | ||
| rows: 10908 | ||
| cols: 4742 | ||
| cells: 51725736 | ||
|
|
||
| # input data | ||
| r.import input=D:\Landslide_Project\site_nanbasin\gdem.tif output=gdem | ||
| r.import input=D:\Landslide_Project\site_nanbasin\mod1_v2_cls.tif output=lscls_mod1 | ||
| r.import input=D:\Landslide_Project\site_nanbasin\mod2_v2_cls.tif output=lscls_mod2 | ||
| r.import input=C:\Workspace\srtm30m.tif output=srtm30m | ||
|
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||
| # check statistics data | ||
| r.univar map=gdem@PERMANENT | ||
| r.univar map=lscls_mod1@PERMANENT | ||
| r.univar map=lscls_mod2@PERMANENT | ||
|
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||
| # set color | ||
| r.colors map=lscls_mod2@PERMANENT color=gyr | ||
| r.colors map=lscls_mod1@PERMANENT color=gyr | ||
| r.colors map=gdem@PERMANENT color=srtm_plus | ||
|
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||
| # create hillshade | ||
| r.relief input=gdem@PERMANENT output=hshade | ||
|
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||
| # create geomorphons | ||
| r.geomorphon elevation=gdem@PERMANENT forms=geomorph | ||
|
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||
| # create slope and aspect | ||
| r.slope.aspect --overwrite elevation=gdem@PERMANENT slope=slope aspect=aspect format=percent | ||
|
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||
| # create flow accumulation | ||
| r.watershed elevation=gdem@PERMANENT accumulation=accumulate | ||
| r.terraflow elevation=gdem@PERMANENT filled=tf_filled direction=tf_direct swatershed=tf_watershed accumulation=tf_accumulate tci=tf_tci | ||
| #---------------------------END Section---------------------------------------------------- | ||
|
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||
| # Landslide risk binary model(Map Algebra) | ||
| # Select Value 3 | ||
| Con("stream_cls3" == 3,1,0) | ||
|
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||
| # MOD 1 Binary model | ||
| "rain" + "elev" + "slope" +"fault" + "stream" + "lu" + "soil" | ||
|
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||
| # MOD 2 Logistic regression | ||
| (0.422 * "rain_cls3") + (0.702 * "elev_cls") + (0.294 * "slope_cls") + (0.149 * "fault_cls2") + (0.543 * "stream_cls3") + (0.207 * "lu_cls3") + (0.168 * "soil_cls2") | ||
|
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||
| # Optional (Not good) | ||
| (0.543 * "stream_cls3") | ||
| (0.422 * "rain_cls3") | ||
| #---------------------------END Section---------------------------------------------------- | ||
| # Z-Value | ||
| Z = ( x - mean ) / standard deviation | ||
|
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||
| # rain | ||
| mean = 1463.298916946324 | ||
| std = 504.3974882779886 | ||
| ("rain_spline2" - 1463.298916946324) / 504.3974882779886 | ||
|
|
||
| # elevation | ||
| mean = 282.7523006876582 | ||
| std = 291.1105330225796 | ||
| ("elev" - 282.7523006876582) / 291.1105330225796 | ||
|
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||
| #slope | ||
| mean = 15.30551389709412 | ||
| std = 15.97089648130912 | ||
| ("slope" - 15.30551389709412) / 15.97089648130912 | ||
|
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||
| #fault | ||
| mean = 49164.80831310928 | ||
| std = 77164.83337285608 | ||
| ("fault_dist2" - 49164.80831310928) / 77164.83337285608 | ||
|
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||
| # Map Algebra | ||
| 1 / (1 + Exp(( - ( - 39.9168 + (0.0295 * "z_rain") + (0.0087 * "z_slope") + (0.0075 * "z_elev") + (0.0006 * "z_fault") + ( - 0.6413 * "s_grs") + (0.0979 * "s_def") + (-0.7801 * "s_mdf") + (-0.7785 * "s_ddf") + (-0.6169 * "s_agi") + (-2.3088* "s_clay"))))) | ||
| 1 / (1 + Exp(( - ( - 39.9168 + (0.0295 * "rain") + (0.0087 * "slope") + (0.0075 * "elev") + (0.0006 * "fault") + ( - 0.6413 * "s_grs") + (0.0979 * "s_def") + (-0.7801 * "s_mdf") + (-0.7785 * "s_ddf") + (-0.6169 * "s_agi") + (-2.3088* "s_clay"))))) | ||
| 1 / (1 + Exp(( - ( - 39.9168 + (0.029 * "z_rain") + (0.009 * "z_slope") + (0.007 * "z_elev") + (0.0005 * "z_fault_rv") + ( - 0.6413 * "s_grs") + (0.09791 * "s_def") + (-0.7801 * "s_mdf") + (-0.7784 * "s_ddf") + (-0.61690 * "s_agi") + (-2.3088 * "s_clay"))))) | ||
| #---------------------------END Section---------------------------------------------------- | ||
|
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||
| # Inport GDEM 30 meter | ||
| r.import input=E:\8_Thailand_DEM\gdem_2017_30m.tif output=gdem_2017_30m | ||
| g.region -p raster=gdem_2017_30m@PERMANENT | ||
| r.relief input=gdem_2017_30m@PERMANENT output=hshade | ||
| r.geomorphon elevation=gdem_2017_30m forms=gdem_2017_30m_geomorph | ||
|
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| ## Test | ||
| if( gdem_2017_30m_geomorph@PERMANENT ==6,1, null() ) | ||
| r.mapcalc --overwrite expression=geomorph_slope = if( gdem_2017_30m_geomorph@PERMANENT ==6,1, null() ) | ||
| r.mapcalc --overwrite expression=geomorph_slope = if( gdem_2017_30m_geomorph@PERMANENT >4 & gdem_2017_30m_geomorph@PERMANENT <=7 ,1, null() ) | ||
| if( srtm_geomorph@PERMANENT >4 & srtm_geomorph@PERMANENT <=7,1,null() ) | ||
|
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| # reclass r.geomorphon type I (STRM) | ||
| 1 9 10 = 1 | ||
| 5 6 7 8 = 2 | ||
| 2 3 4 = 3 | ||
| r.reclass --overwrite input=srtm_geomorph@PERMANENT output=srtm_geomorph_cls rules=C:\Users\gistnublack\Documents\grassdata\nanwps_lanslide\PERMANENT\.tmp/unknown\4064.0 | ||
|
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||
| # reclass r.geomorphon type II (GDEM) | ||
| 1 9 10 = 1 | ||
| 5 6 7 8 = 2 | ||
| 2 3 4 = 3 | ||
| r.reclass --overwrite input=geomorph@PERMANENT output=gd_geomorph_cls rules=C:\Users\gistnublack\Documents\grassdata\nanwps_lanslide\PERMANENT\.tmp/unknown\4064.0 | ||
|
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| # reclassify type final | ||
| 1 9 10 = 1 | ||
| 4 5 6 7 8 = 2 | ||
| 2 3 = 3 | ||
| #---------------------------- | ||
| 1 10 = 1 | ||
| 6 7 8 9 = 2 | ||
| 2 3 4 5 = 3 | ||
| #---------------------------END Section---------------------------------------------------- | ||
|
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||
| # Define Slope from Geomorphon to detect village | ||
| if( srtm_geomorph_cls@PERMANENT ==2 & srtm30m@PERMANENT > 75, 1, null() ) | ||
| r.mapcalc --overwrite expression=strm_slopefinal = if( srtm_geomorph_cls@PERMANENT ==2 & srtm30m@PERMANENT > 75, 1, null() ) | ||
|
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| if( gd_geomorph_cls@PERMANENT ==2 & gdem@PERMANENT > 75, 1, null() ) | ||
| r.mapcalc --overwrite expression=gd_slopefinal = if( gd_geomorph_cls@PERMANENT ==2 & gdem@PERMANENT > 75, 1, null() ) | ||
|
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| # Export to Server | ||
| r.out.gdal input=strm_slopefinal@PERMANENT output=D:\Landslide_Project\1-site_nanbasin\_grass\srtm_slopefinal.tif format=GTiff | ||
| r.out.gdal input=gd_slopefinal@PERMANENT output=D:\Landslide_Project\1-site_nanbasin\_grass\gdem_slopefinal.tif format=GTiff |