Slope Analysis from DEM in ArcGIS || Slope-Wise Area Calculation || @GeoTech Studio

[Applause] [Music] hello everyone uh today i am going to do a slope analysis here for that uh you need to have a dim file uh you can get it from the usgs google earth explorer and today i am using 30m resolution srtm dam file downloaded from the google earth explorer now i am going to add my dim file here [Music] i am reading my dim after this you have to insert first of all you have to check your is your data is in correct projection or not otherwise you will you might get here so now i am inserting my area of interest here look at it carefully now i have to extract only my area of interest here now what i am going to doing is that i am joining a extract by max but we can do clip also also you can get it here now you have to input your dim file and which layer you want to max or clip out you have to input that layer and you have to give a suitable output location and then click okay now with this you have to make it hollow so that you can be busy visible your area of interest now this is our raster image of our area of interest now you can remove it with this we have to go through a different steps so first of all you have to get a control you have to develop a control from it now you can just type contour on the search then you can get it input raster from which you want to get uh your control and now you have to put a contour interval here i am going to use nearly about 80 so that it looks clear now we doesn't have to add any other factor or any other base control it is optional and you just have to click ok now you can see it we have develop a contour line here develops you can observe it by zooming this is our contour line we developed in it now you have to create a team control to team thing to register and then restart too slow now it is a 3d inline in analyst tool you have to give here a output location it doesn't matter well now i'm going assigning my coordinate system input class feature i am going to add this in this and i am doing it as it did ah after adding these uh our area of interest uh our output will be more uh focus on more uh it limits the tin output you can see it here by i will show you what it makes differ by adding an area of interest in it or skipping it or leaving it it takes a time to load tin is triangular irregular triangulated irregular network you can see it elevation range of the tin it is start from 160 to 391 and then to goes to up to 2239 with this now we have to convert it into raster sorry i died from tim to rest again you have to input your tin and you have to give it a raster it is not our the final output so i'm leaving it in the uh scratch file is a way of the rgis it will get erased from the system now okay with this and clicking okay and running it now i'm removing this thing on ticking this thing and control 2 now this is our raster 5 raster file from which we have to create it we have to create a slope map now i am going to run a slope tool here you can see it i'm gonna add my 15 this one and slope i leave it to it it doesn't matter now i'm just now we can see it this is our slope map now we have to give a finishing touches so that it looks more more clear and we have to calculate the area of every portion here i am unchecking all other extra output that we have developed to reach to the you can get it makes our output smooth i am going with the bilinear interpolation you can see it it makes our map smooth and looks more attractive here you can open now you have to reclassify it according to your uh working location that means uh up to how much altitude the your work is efficient or valid make the criteria from below to up so that it uh it will define the your most preferable zone zone attitude and altitude then your moderate working zone in this way you can calculate the high slope area you can see it here i am showing it it is a 0 to 3 degree slope 3 to 10 degree 10 to 18 18 to 25 25 to 32 32 and you can see it our area has maximum slope of 71 degree up to 71 degree now i am using my raster i am going to classify it into yes in this way you can get it it will develop it into the full criteria now i am just clicking okay and this is our reclassified data and now we have to convert it into the polygon register to polygon every classifies but will convert into the polygon feature and it helps us to our slope area now with this i'm running raster to polygon slow you can see it here and i am leaving it here and clicking ok now you can see it here this is our output and you can see we have to make it record it will give us our record means this one two three four this means uh grey code one represents a slope area of 0 to 15 and then as we reclassify in our window you can see it this is you have to assign it here 0 to 15 it makes easy 15 to 30 50 to 45 and you can write it here 45 level now you can type just greater than 45 you have to click apply and you can change your color ramp to itunes british here now this is the ramp which i want after this you can see green zone is 0 to 15 and it is flat line you can see it here this is our slope map now we have to calculate the area so what we have to do is that you can you have to develop a field here first of all head field put it area and make it flat type you can do calculate geometry yes as we have to get it in hectare now this is the area of the every greek code but what i am going to do is that i am going to merge select my attribute [Music] you can get it equal to get unique value do one then apply and before that you have to do start editing on your final that means this then click ok continue it doesn't matter now what you have to do is that you have to merge and click ok it will give you one only one area only one person that denoting equal value one you can see it here i am going to delete this or turn off in this it might create confusion so now i have to do similar for other three grid code too i have to get it unique value apply then you have to get a match and click ok similarly you have to do three apply margin you are gonna merging your area denoted by the greek code 3 and now this is our final greek code and this is our final merging step now you can get it we have to record one two three four with this now we gonna calculate the we're gonna close this and we're gonna save it first and we're gonna stop editing now i'm gonna add area field here i am going to calculate area injector so i am adding it hector i'm making it flat i'm clicking okay i'm sorry i'm going with this now we have to develop you can get it from here you have to check your coordinate system and which property you want to get it from it now with this i'm going to clicking just okay and clicking yes you can get it our area here in hector and in this tutorial i have a final slope map and you can get it into a layout format you can get it and edit your necessary item here according to your name and with this we have done our slope map and we have calculate area of every bit of greek code and this denote that area covered by 0 to 15 0 to 15 slope degree slope area is this seven one lakh seventy six thousand two hundred forty six and area covered by fifteen to thirty degree slope is this and we can get it from here now with this i'm gonna end my video here thank you you

Channel: GeoTech Studio

Views: 6,109

Rating: 4.9238095 out of 5

Keywords: slope analysis arcgis, slope analysis civil 3d, slope analysis, arcgis tutorial, slope calculation in, slope calculation in qgis, slope map in arcgis, slope map from dem in arcgis, slope map qgis, digital elevation model, slope map, gis analysis, geographic information system, create slope map in arcgis, create slope map from dem in arcgis, how to make slope map in arcgis, how to make slope map from dem in arcgis, how to make slope map in qgis

Id: ynaBhCwOT1w

Length: 21min 42sec (1302 seconds)

Published: Sun Sep 27 2020