How To Download Digital Soil Map For Any Study Area

hi there welcome back so today i'm going to show you how to download digital soil map of the world and after downloading that soil map you can even make a subset of your study area any local area or country if you want to make the soil map for your country or for your watershed sometimes we need that soil map right in order to calculate different model parameters we need that but today i'll show you how to download only and make a country map or any local region right out of that world a digital map of the world and then you can even practice by yourself and let's see we can yeah if we can make it so i'm gonna show my desktop monitor right now so let me share it quickly and here it is if i wanna search f a o catalog right fao catalog then what it will show let's see because you have to yeah catalog map catalog visitors more specifically then it will show you this one okay fao map catalog then definitely will be able to see so that is the food and agricultural organization of the united nations and if you search here the digital soil map okay digital soil map of the world here and then if you press enter then it will show you that see digital soil map of the world and you also have other data set right the world soil and train database and you also have country boundaries of the world so these are the shift files so i'll show you like time to time that which one is more useful and which one we need but yeah if you go to this website and then you can download it okay and you need gis to process your data so that's the precondition if you already have installed your gis then it's okay otherwise i have another video where i demonstrated how to install gis right as a crack version you can even download i already provided the link in the description below of that video so you can download and you can install and then you can practice okay so if you click on this and let's see what it is giving us if you click on this see it is giving us different links right you can even uh download that pdf format of the entire world it will be something like that on the right side we can see the image but we wanna download this as a chef file right so that we can even uh extract a part of the study area part of the map so that's it so i'm gonna search for it the digital soil map of the world here does format no i we need that shift file esri okay this is the gis shift file and we also have other format as well and we don't want to download at this moment other data so i'm clicking on that one e s r i share file format okay so it is uh giving us okay digital soil map of the world dsmw if you click ok then it will show you there so i'm gonna create a folder okay where i can locate it inside this folder data download because i have the series here and here digital soil map okay digital soil map digital soil map and i'm just downloading there and after that i'll extract it and then i'll open gis because why i did that right now because in order to process anything you need to create a separate database so that you can even create separate shift file and separate processing otherwise if you just make by default then it will just peel off your c drive and you won't be able to even retrieve your previous information that's why for every project every new project i'm gonna follow the steps you can follow this way so that is the basic rule because gis is kind of a complicated uh software package so if you have any in the project in your laptop and if you wanna yeah move this project to another computer and if you use a default directory then you won't be able to open the map so that is the problem that's why you need to generate separate geodatabase and here it is let me just quickly extract that what did you see other than some description and files nothing else okay so we already extracted that so we have this one there we have that basic files let's see what we have maybe we have some description right so we have this code okay mapping unit code and there is the values we need right this is the description of the property of the soil since it is a soil map so this map is useful in order to calculate different model parameters for example if you want to run heck a sms model for a longer period with soil mercury accounting i'm going to create one tutorial on that one then you need that soil property you need the soil information at different depth and you need to process some something right and then you can calculate the groundwater level one parameter groundwater level two parameters so that's why you need to have this information and the percentage is where you have the heavy soil or porous or any sandy soil based on that information or grid code and soil code i'll show you in separate videos no problem so that's why we need to have this description and we already have that but for the time being we are going to exclude it and we have the layer we can't even open that one and you can open that readme file you will have a description of that i already got it in separate window here it is so you can see that it is uh from 2003 and we have that description here it is kind of a report and it will show everything right what is the dominant soil and what is the person is you can see that right when you have idea about that one then you can process and you can even describe your study area that okay my study area is basically uh this type of soil and it's this type of dominant if it is porous then there will be right more loss than your runoff so that's why you have to take the decision and if you want to use any loss method any loss factor curve number loss method then you have to use if it is porous then your curve number will be different than right of soil that is very compact and very clay soil so that's why you have to know the slope as well it depends on the flow of water it depends on the gradient of the land surface so you need to have all this information and everything in order to make that soil classification we have everything there literally everything because we need to know that right we have that code that's why i told you right we need to have that code and maybe there will be some other example how to interpret right and we have the country code as well okay let's see when we'll open that in gis then we'll process this data okay and i'm gonna show you so what i'm gonna do i'm gonna create a geodatabase inside that folder so that it will be separate then what i already have in my other gis project let me open gis if you already have that so you can follow from this state okay so it is taking a while i'm using gis because i'm using separate computer it is gis 10.7.1 it is the paid version and what i have here okay let me show you i opened this one okay and when you open for the first time it will show you the previous suggestions okay we have the separate project but other than using that one what you have to do at first you have to select not recent one you have to select the blank one okay not this one so how can you do that you have different options here you can even open and my templates if you click on that it is gonna ask you okay where you wanna create your see here i already have that map geodatabase dot g d b i'm not gonna use that one i'm gonna create a new one so that you can understand how can i proceed right so i'm selecting this present directory and if you click on that one it will create new file geodatabase if you click there and i'm gonna rename that okay digital digital soil map dsmw okay dsmw and geodatabase and i'm selecting adding that one so everything will be there inside that folder and once you copy the entire geodatabase with the map file then definitely if you make any zip file and if you convert it to a transfer to any computer if you send it to your client and definitely they'll be able to open it the same way and i'll show you how to even save that mxd file means a gis file i'm just clicking ok so what i have i have the blank gis here right and now i have the connection there if i click plus add data it will see it is taking me to that directory i just created and if i click there because i have the share file so which one i need to open i don't need to open other one so i'm going to open that shift file okay dot ssp and if i add it will add everything i'm not gonna the zero fronts the reference system is missing so you can assign any reference system i'll show you everything in my gis tutorial how to assign uh reference if it doesn't have and how to even project from one coordinate system to another one okay so for the time being it is this one it is the world map right so now for example okay i'm gonna extract the soil map of usa or you can even because that is the map of us you can see that is the usa and here we have the hawaii island and we also have the alaska there so the map of usa will include this one that one and this part okay this is canada so let me extract that map because see it is kind of a shift file and so since it is a shift file we can open the attribute table right the description we saw in the readme file or excel file we also have the same information here you can see that the first one is polygon and we have that different information soil code and different soil layer and you can see the country name at the end right and what is the area of is of shape file it is there in square kilometer and you can also calculate the yeah area in different units i'll show you everything in my gis tutorial series that is not a problem you have to do everything there it is possible you can add one column and you can calculate okay i'll show you that one but for the time being if i select here see it is gonna select everything every country but what i need i need to select only usa or i need to select canada or i need to select any country you want right since it is covering the entire world so it is possible to select any country right country of interest and then you can create separate file and create separate map so how can you do that so there is definitely an option right of course so there are different options you can select by attribute you can select the location and you can select by dragging it see even i can press there select feature and if i drag it but it will select only those features that are touching but in order to select perfectly the map of usa right because it is in is also including this part is also including that part we have to select yeah we can select this way if you select that one first and press shift and you can select this one and at the same time you can select this one but sometimes you may miss right the small details so that's why i'm just deselecting i need to follow a specific guideline that can even select everything okay so what i'm gonna do here if you can open uh that both way you can select if you just wanna open that file means the attribute table and then you can go there menu bar and then it will show you some option to select you can select here select by attributes okay and yeah here it is and we can do the same processing okay i'm gonna show you that one since we are gonna select only the country right and what i need to do you have to select the country there double click on it it is showing this country we are going to select from the country column and which country you want to select so this will be equal to this kind of programming code so they're taking this one okay and which one you need so if you click on get unique values it will give you all the country name of the column okay see there and if you want to select any country double click on it it will be selected so what we need we need to select united states of america right so i'm gonna select united states of america that one if i double click on this so now the country is equal to i'm asking the query okay select only the share file that is named after that one united states of america and you can select any country you want and if i apply to select only united states of america including alaska and that why island okay i'm selecting so did you understand which i which one i selected i can't see anything see on the lower left corner you can see it because it is arranging in different order so if i select that one show selected records so then it will select only the selected part and this is the files within usa right how many share files we have you can't even finish counting yeah many i can't even finish counting right and if i close that one now it will highlight only usa see perfectly it is selecting hawaii alaska and united states of america so now what i need to do if i just right click there and you can do the same thing here from selection from attribute you can do the same job here same query same same thing you can do both way right you don't need to even worried about anything there are a lot of options if you are familiar with gis it is possible to manipulate and yeah so let me just quickly extract or export this part only once you have the selected layer or selected feature then right click and then data and export data right and it is asking where you wanna save i'm gonna save that in the same folder right same folder means the folder i just created maybe it should be there okay let me gonna open that inside this folder data download and i have the digital soil map and here i'm gonna select um inside that one yeah i can save it right soil map of usa okay digital soil map of usa digital soil map of usa so digital file map usa okay and then if i save it it will save only those selected share files and it is asking do i wanna import it as a new layer yes definitely yes then i have that one and i'm deselecting the previous layer i selected okay so there is no selection and if i turn it off i have only the map of usa see since we have different soil information now it is doing only one color if you want to change the color right click go to properties here you can see that it is going to open different properties and you can see from the source there is no coordinate system right literally there is no coordinate system so you can assign the coordinate system either it is wgs 1984 or any utm coordinate system we can assign that one but for the time being we don't need that and it is showing the extent of the map okay and then yeah we can display the symbology if you click on symbology i'll make tutorial based on this one separately so don't be worried about that one if you click on since it is now single symbol is string only one color i don't want that okay i want to cl create a graduated color i mean based on its shape or square kilometer or even you can change it to a different color okay even if you just uh create category and single symbol and since it is showing that so if i click this soil layer it will select different color right different color right see for every greed or every code that code it will select different one okay and you can even select this phase you can select digital soil information so it will show you this map as well if you select this color okay i'm gonna apply that see it is it change the color and if you select different color bar see that's that okay if i apply now you can see it's a nice map of usa right but this map doesn't have any projection system or any reference coordinate system we'll deal with that one coordinate system in gis tutorial so that's it if you want to even create mav then you can select their layout view and you can create the map from this one and you can change it from file menu page and print setup i'll show you how to create map like a professional thing okay and you can manipulate the map you can add the base map as well whatever you want you can do that right so that is the map of usa and it is a digital soil map and you can even manipulate this way we can even highlight it okay more i can cover the area we can even zoom in more can you mean we can add title we can add anything we want okay so this is how we can download the digital soil map and we can even export the soil map for a specific area or country we want and we can even process everything so the processing of soil map i'll show you in separate videos but since this tutorial is basically this series of tutorials it has different videos where i'm showing only how to download different data different precipitation data different uh data we need and i'll also include more data for running any model for analyzing any uh scientific information or for creating different maps and creating a model parameter so this series of tutorial is basically based on data download and i also have another uh series of tutorial right that is only showing how to plot different types of data and i also have other how to set up model and everything so in my gis tutorial i already started that one i installed the gis the free version you can check that and then i'll show how to do all this processing so only i'm saying that yeah how to download this one and how to even export the soil information for your study area in the next tutorial i'll show how to download that land cover and land use information that is another most important data set we need for any hydrologic model or for any other uh purpose okay so that's it you can try i'll give the link in the description below and you can easily download from that link and you can do the same processing you can follow that one the first thing i'm suggesting so just after downloading or creating any new project you can even okay open the new geo database so let me just quickly share it again that what you'll do when you will save this and how it will save this when your project is done so what you have to do you have to save this gis okay so that later on you can click and it will open these ones how can i do that the best way is to click that file and then save as okay click save as and then you can specify your location where you want to download of course you have to save it inside that right digital soil map folder and you can give any digital soil map okay digital soil map of the world okay and then it will show that dot mxd okay dot mxt so what you need you need to save it but you have to do another process here and there okay map document properties after saving that one and you have to click that one store relative parenthesis to the data source okay then see it is doing what it is creating that relative path once you are done with this one and if you just copy that folder right now and if you just transfer it to any other device then definitely it will open this soil map and it will open everything so i'm gonna save it again and see i'm gonna close it so now it's done and even if you click on that one because it created dot dot mxd file and then it will open that soil map again and if you just make the g file of this folder because i have the geodatabase inside this one and i'm already everything is linked right i have that see in the other window i have that and everyone will be able to open it it is not a problem okay so that's it so you need to save that way you need to open that way and you'll process your data for future reference okay so thank you very much for watching and let me know if it works for you and yeah definitely i hope that yeah it will work for you as well because it is pretty simple and their server never shut down so you can do that and let me know if it works or not otherwise you can proceed okay so thank you very much for watching and see you in the next tutorial

Channel: Md Arifur Rahmahn

Views: 525

Keywords: download soil map, soil information, soil data, land use information, LULC, land cover, recent land use data

Id: oUZnkRys3pg

Length: 23min 2sec (1382 seconds)

Published: Sun Sep 05 2021