How to do Landslide Analysis in Arcgis? || ArcGIS || 10.2.2 || @GeoTech Studio

[Applause] [Music] hello friends welcome to my channel and to my new video too today I'm going to do a landslide in lysis yeah and for this I have a temper your Lancet images and my Lorna trope and I have to go through the slope to buy this damn file landslide in lenses can be done more easily to this damn file is it can play a major role for it because slope can be taken as our criteria factor ISM is one of the most influencing factor to cause the landslide and here is the road zip file taking is one of the major criteria and we can take our precipitation factor rainfall factor swing factor geological data in different order factor but here I am showing you the road network in my area of interest you have to keep out the area of interest from the lancet data and make it easy to use in the ArcGIS now here's shows low value and the high value in my Landsat image and dem file now after this I am gonna my raster data this raster data is processed data that means I have converted this to contour contour to tint into raster and this is the raster file or the converted raster file from the DIMM file to make a slope map and I am gonna run slope tool now we can put that raster file here and save it in your desired location then run okay now we got slope slope map and we can see our value here the red the green zone is a restricts zone for the landslide and as we go down there is a red zone which was this one is the high prevalence on for the landslide by the slope then I am going to reclassify it [Music] and there is an a new value in once was reached Rick's zone of the lens line to the nine it means one is less risk and when we go down two three four five six seven eight nine in the Rick's order goes on increasing now I am gonna run it here we got a new outfit which is reclassifying the one two three four five six seven eight nine now as I have already mentioned that one is Rick's gravel zoom for the landslide in the nine is highest prevalence on further lens line now after this we are gonna deal with that different hydrological now and this we are gonna link with different a special analysis tool and then to the hydrology tool and run the filter put the input are dem file and save it where you want or in your desired location then run again wrong flow direction put that pillar output file and save it to your desired location and then run it then again we have to go to flow accumulation this is our output of the flow direction now after this we have to go to flow accumulation our location and as I've already mentioned it click OK and you're gonna get a for accumulation output it takes a little bit time don't worry then we're gonna get a bra black out food with a little bit white to John that is the water sources John now in here which was the low value and the high value it helped us to determine our zone then sly tricks is on bronze oh yes there is a high flow accumulation there is a high chance of landslide so with this we have to go through different map of the gratitude for further processing now I am gonna run go on a math map of the bra box tool and run a restaurant later unsuited criteria here the accumulation and there comes an inequality greater or equal to and I said a certain value or limiting value so that each six-hour landslide zone area I'm gonna put a put a certain band by observing that I can I think for that value I am gonna put 500 and after that the Esther calculator run successfully we get output here in the screen with a zero one zero Eva leash sweet this runs on four landslides and one is must program runs on four landslides and with this raster output we're gonna strimling that link is the different strengths of my area of interest put that raster calculator input flow Direction restaurant then one okay by saving it in your desired location or the working location now after that go to the spring order tool I am unchecking this raster calculator our food that we have got now we are we are gonna dealing with that our recent output and running spree model input flow Direction input hours and output and save it in our desired location and run it after this we run successfully the stream aura now we got output is 1 2 3 4 5 6 and I am gonna run stream to feature to that water what it does is that it gonna link it gonna feature our stream is a single chain of network of different stream now it is our output now what are you gonna do with this output is there we in simple language we're gonna do a buffer buffer that zone in such a way that by using such a tool which gives hospital region or makes us easy to classify the landslide is only with this I'm on checking all this yeah and keeping how latest or the relation output now with this go on heart will works then on the difference there's we can see density to content densities to line density to point density to it can be used as a tool to buffer but here we have one strong network of say 5 in here zonal we can see different tools here to dealing with it in this patio specific trees we can see analyzing pattern my opinion and this but for now we are not dealing with the distance toolbox and under that we're gonna dealing with you civilian distance and put that Network snap tubes chart output on input Western here it was optional so it is not necessary now shave it in a desired location and here it's with output cell size and say within the desired location one savings don't forget to leave a extension otherwise we'll get even but here I'm going to go with default now this is our output of our that Hydra longitude which we are looking for now with this I'm gonna reclassify it further change it covered our Illyria we doesn't need too old now I'm gonna reclassify it I'm going to classify it into nine classes input raster that our in civilian distance to and classify it into nine classes then click OK now as we know that that is near the water - since there is high chance of landslides so this range soon be reversed so that we could exact our analyzing pattern is we have done with slow this one to this stream say means true after this we have got a new output that shows how one is a least prone to the landslide and as we go down to the knife we cut highest or the peak value or highest prone zone to the landslide after this I'm disclosing on that origin s now I'm looking for a route network to pay for it or to determine it's packed for the landslide analysis we are gonna do same as we have done with snap to feature output and we are gonna run you see the drain which test to input our road network and save it in your desired location even the environment and go to processing extent and make that extend to say medium file so that it covers our whole study area or the AO area of interest then click OK then we food now again it's with our prawns on our are the maximum minimum zone which are susceptible to the landslide landslide now we are gonna again classified reclassified into different nine classes where is the sword distance as we of we can see many more exceeding around the world so we are taking it is a major factor we can see landslide accident many more near the role so here is the our data rings are the output range here we have to transfer it to nine class and then click OK versuta because our data rains so the stars that is we near the route there is high chance of landslides so I am gonna reverse this that order and save it on my default location or same you to the new location or while saving don't forget to give an extension otherwise it will get but I'm saving inner deeper so doesn't matter [Music] so this is our Road Metro out food now we can see the reclassified air and absorb that one two three four five six seven eight nine then we can absorb which one is more fun in the with Johnny's this prone to the landslide after this we are gonna do normalized difference vegetation index for calculating and VDI and DVI which is one of the major hacker while analyzing the landslides now gonna take my in Lancet banned and unchecking all wrist [Music] now this is out there by and I have checked already this band lancet band now I am gonna run raster calculator to before that I want to show you one thing I'm gonna use this and if you have formula normalized difference vegetation index I am gonna on ArcGIS again now I will use flat mathematical tool and then double click on my infrared band that is been fired in - powerful push sorry I have click been five again I am gonna delete it okay I'm gonna click on double click on band 4 and put a divide sign and again flood and add the band 4 & 5 okay save it in your heart foot location before I am gonna show you or tell you about the NDVI normalize the difference here visitation index it help us to analyze the landslide console I will tell you about this what does it do when our output is ready I'll explain about it's a trends and it's value you can see near infrared band 5 and the red band 4 while calculating and DVR we have to use this formula now click OK after doing this after doing this or shape into your desired location I will leave it or run ok after this we have got our output of NDVI then we have got a certain range on each output that is minus 0.1 double 0 4 5 I am gonna change the first color ramp and then I will show the data range it make us easy to study about our deterrence is Red John shows us that it has less vegetation in the Green Zone so just it has the high vegetation index that means as we study that the a visitation zone is addressed list weeks to the landslides and the low vegetation index is high prone to landslides so we can observe these data rains and I am going to properties in its symbology oh yeah we can get a unique value of our restaurant spread data so here I am gonna do this show you a high value in the low value again minus 0.2 one double zero four four five into the 0.5 and I'm gonna apply in run it and now I am again gonna be classified now this is our data range it to suggest us that the as I already mentioned less NDVI value means high prone to the landslide and high-end developments less less prone to the landslide and we have to put it in the order 1 2 3 4 5 6 7 8 9 in the increasing order of our rigs order 1 is the less weeks on end us when it goes down 2 3 4 5 6 7 8 9 this is the our order so we have to reverse this is our data raises suggest or our NDVI value suggests that it has low vegetation index so it has a high prone to the landslide so I am gonna put it 9 is new when I am gonna reverse the order so that it can match with our before reclassify work and I am gonna save it or run it now our determining factor or criteria are ready to run our final tool that means our analysis tool that analysis or overlay to which we gonna run or landslides and Isis generally we are gonna do it with weight is tool if we are doing it with a current a turn then waited over lit will is best yeah I put a wrong spring so that it doesn't show the tool to go with shorts better to go with our tool watts go to the spatter analyst tool and then to the this over little here we gonna see different tumors fuzzy overly which is overly weighted sum but we are gonna bring with whit is over now I'm gonna run it I'm gonna killing all my reclassified data here simultaneously this is our Lancet reclassify or NDVI data and I'm gonna edit Elda our stream Nate no road network data and now I'm gonna add strip to classify data now at last I am gonna say the slopes we classify data after that we have to see percentage influence to calculate through the weight is overly it is one of them must important step to do when doing while dealing or doing with it Yann DVI value has higher influence on the lens light indices or the lens light calculation are working understand make it simple and understand I am going to look at certain percentage to each chapter is it importance to the landslide now I am gonna give this or The Lancet image or NDVI reclassified value to 35% now with this I am gonna dealing with a road network by allocating it percentage influence 20 percent and I am gonna dealing with my stream network or the water sources Network by giving it 30 percent now after this at last but not least my slope factor I am gonna give it 15 it has more influence but here my location remains 15 so I am would it suit him after this I want to say that before going percentage in friends total sum must be hundred percent by a after reading that our inference percentage and I am gonna determine evaluate that is killed by one two nine by one and save it on the your output locations and run it okay oh we got our food our final our food now we can see green zone is high-risk zone for the landslide in and that pink little bit pink color is less prone to landslides now this color doesn't seem so Kathy or the so easy to make you understandable so I am gonna change it all our ends no I'm gonna change color input nice coloring to making easy to understand ever no I'm gonna click ok now it can very easy to make understandable well now red zone is I prone to landslides and dark green is less prone to landslides and Alou is more brightly next one now with this I am gonna miss this video before that I want to say you that we can see how landslides in life is clearly is we change the color am with this I'm gonna finish my video thank you

Channel: GeoTech Studio

Views: 8,298

Rating: 4.9466667 out of 5

Keywords: landslide analysis in arcgis, landslide analysis using gis, landslide analysis fleetwood mac, risk zone, risk mapping, risk mapping in risk management, risk mapping tool, geotech studio, geotech, GeoTech Studio, Geotech, arcgis tutorial

Id: PbqQE0DEknc

Length: 38min 23sec (2303 seconds)

Published: Wed Apr 15 2020