Data preparation for #HEC-RAS (Long reaches)

good morning good morning this is M and it's a bright day Saturday so I just want to do a exercise how to prepare data for haass in GIS using AR haass extension so that is it I just want to let me let me show you what I'm talking about I think think okay this is the the data that I uh created in um heas in um args hex R uh using her extensions so I'm am going to do it step by step again to show how I arrived to this uh result so um the data is I mean uh available online for everyone um this is herass 5 and um the data we can see you see you see we have land us data area photograph data and Tin data the te is um on a regular triangular Network in G and uh the extensions we need uh joras joras and also other extensions like uh 3D analyst Network special analyst that's all we need um we can go ahead and uh open the the files backer this is this is the the team is a river as a tributory with the river backst the river uh the other is area photograph this is area photograph a is C you see this areial Photograph I think this areial photograph is developed from I mean joined joined using um software see AAL AAL photography the the plane takes a partial of land you see it it just simply um take a picture um and then uh return back then return back like this it take a uh so this picture might be joined I mean many picture might be joined to give this one you see so it's necessary it's equally important to know um how to use the software to join um R photographs I have one software here that is called uh getica I used to create uh I used to join um this um area photographs using getica it's very good uh software there is also another Ras software see that is also used to join photographs another uh image analysis software isi it's very wonderful software alsoi um for image analysis so um that is it um the other is we have a land use um map land use map we can see land use map um for n you we see we we can extract n value mining gain value from from this uh land use map this are the the data available given to do this exercise so we can start now processing the data and uh the first step is to just set up a lier okay first we have to save it you see thank you for reminding us um just simply save it uh backer [Music] xam that's it it's saved now so I hope we can continue okay here you see we select backx 13 okay then the next step is create R layers we create layers you see okay okay successfully uh created so you know what we have created now we have created layers imput layers these layers we will um you see each step by step we will uh give them some attributes we can say we we are going to create them the the lers are just simply you see now they are like shelves you see so we are going to um uh create the the property of each uh layers for example the the rivers the ls the direction everything we are going to to create it um so that is it first we are going to create River Center Line you see we have to create the River Center Line there will be a lot of actually not a lot of but the patient you see to digitize the the river it's very important as I say you see for example we can use hair crass just simply by surveying um the river crosssection and um we can just just uh use manually you see the con section but when it is when it is very big area very long river you see it's not easy to put manually all the crosssections even to survey it takes time and also money so this is very very efficient way of doing it uh but we need to digitize and and we need some patient it's not hard work as it is compared with just we see surveying the river and so so it's possible to to now we are going to create Center Line of the river you see just simply create a river Ed feature start editing or we can do it here okay now you see great so we are going going to create Center L let us start from backer maybe this is the center I think Center Line of the theer the processor is slower okay this is the center line we can stop the thing and save it you see the other this is the upper R of the backster river we have to do it separately um so that uh see now start what is this River okay this is again River a cal line again we have to start just you see from a little bit lower than from the border it is stated in the tutorial I think see to avoid errors and so on think I am at the center line for that we need to connect them here I think we have to do snapping here's a snapping we have to snap it here connect okay that's it now the lower batch click for for the image size is big as compared to my laptop that's it uh stop edting Yes save for us now you see we have created uh the River Center Line so now we have to um name them we have to name them um we have to give them an identity we have already stopped it saved it I think so to just give a name click here see that is boxed R and it is the lower r this is also box R this is the Apper reach okay this here is to and the re name is just simply that that is it save it so the rever center is uh created uh we can see the tri uh uh what this this is this one is this doesn't exist okay maybe we can do like this no started I think okay s watch this okay no problem I think okay that is it this is the information you see the the um the language is 7,000 uh it means M 4,000 or 6 maybe it might be in fit or depend upon the the the unit so that is the the r and um now we need to create all these attributes you see so to create that we have to go here um stream Center Line attributes and yes we have to say yes okay it processed for us uh successfully we can check the Z Now T you see T um what is this okay we we can you see the because the the lers measurement start from the lower r from the end of low for example the AR L is here um from station 0 up to 6,000 The Tool uh click also from zero up to but here the station is this one you see so what we are going to do is just edit this thing maybe start the thing okay re um here copy I think we can paste it here so save it it and we have saved it let's stop editing that is it um and also I think we can also do this again and just start editing attributes you see if this one also okay that is that is the the river now we have to create the banks yeah just St a step by step procedure so here this s here okay uh uh create feature Banks just create line now we create the banks you see the river banks I think because the the banks are very white let us make the bank like this see wi wider wider I think this this is the the Left Bank when we are looking from Upstream to down stream this is the left buk two sorry now we are going to construct the the okay the the right buk see these are the banks okay the right Bank maybe let us consider is from here just save it okay the other bank also banks for the tributary that's the Left Bank this one is the the right one this one is the left B h w okay the next is the the right B [Music] [Music] for I think we can continue for okay these are the bankers I think so we can uh uh save them and also create the the next step is to create a flow line flow pass and uh a flow pass is you see uh the software use those flop FS to to calculate the cross-section uh uh see the language between crosssection stations and so on so now we are going to digitize the flo pass with the same process procedure oh it is already here that's the flop first click the pl for is where the see this is the floor part the floor see let us start from [Music] this [Music] w just a snapping can't continue I think after to the lower reach oh and that easy enough that's it we can save it that is the left um side uh Flo PA we are going to continue doing the right Flo part as well e [Music] for okay this is the flo pass the right floor pass now I can start for the three d n for you took my last cigarette she was a bad bch she took my last my last my b that's it another the left fluffers of the tribut is done um she took my my my [Music] okay my [Music] one almost um we have finished digitizing patient requ here [Music] quter new for my my took so stop it the think save yes now um we have uh created the is z for all line w [Music] we can stop snapping for a while stop it so it's not going to SN pushy [Music] okay that is the left of flers we can change the color so that maybe we can see it has a yellow see this is [Music] city is here [Music] that's it that is the right Upstream AR um floorers [Music] for [Music] for oh I snap it yes Save okay the last uh Flow Part here for for for for [Music] [Music] for for for okay that is the the flow uh part we can name them the right and left something like that see we can see the table now okay see this one is the the left H we are going to this one is the right okay [Music] this one is the right this one is the left looking from Upstream so now save them maybe some a little bit de here I think for for let us create one in for so we did it now the only remaining um yes the information is complete yeah now the crosssections to create the crosssections we need the we need more information where we can find the the bridge and so on and so on to to to get information on the ground we need the this the area photograph go we can see like this you see so we have you see now it's it's clearly visible where the the blockage is and um the also [Music] the the bridge we have three Bridge here one two three Bridge we can make them uh we need to to identify them so now we're going to start our digitizing our crosssection you see cross-sections are very important because when we create the cross-sections the cross-sections will uh uh take the attributes of uh the other lers you see all of them are this is the bank is a liar river is a liar lier and the flow PA is a liar so from those layers we take some information there is also a land use layer and so on so the that is the the use of uh drawing uh the cross-sections the crosssection line and um get the information from the other l so we can start um digitizing the the cross-sections while we are digitizing it has to be perpendicular to the Flor and also it has to it has to uh the span has to cover you see all the bunk or the area where the flood might go and um and we also digitize from left to to the right so let us start here digitizing the start editing here create create feature cut line six okay here it is this is line weon see okay and also the distance between the uh the two crosssection lines must not be more than um 150 100 uh 30 something like that to to get the full information you see details and it has to be like this perpendicular with the flow we can make it like this easy from left to right [Music] for [Music] [Music] [Music] e [Music] along the the bridge and we have to we have to do like this upst stream and down stream we have to see there should be a cross-section of the upstream and downstream okay that's one R the other Bridges here the other just simply put cross section [Music] oh okay this doesn't seem a bridge but let us make one Bridge here [Music] okay and also here perpendicular there is one Bridge here that us make a bridge [Music] here like this I think this is correct [Music] that's a bridge can make also another line here [Music] okay okay [Music] [Music] St save you see these are the trans sections and um we can see the the crosssection just simply stop editing here stop editing yes so we can see you see the cross-section of this see this is good I think uh we can see the cross-section here and we can see the crosssection here also see this is the river yes so I think our cross-section is okay to to continue so what we are going to do is now um we have to give them attributes for the crosssections like we what we are going to do is ex attributes River Rich name you see you you can see here from the from the attributes all these things has to be filled informations so we are going to fill all everything here stationing successful um Bank stations yes a bank stations you see okay successful and also the position elevation you see now we have all the information is a 2d information see information right Bank Left Bank something like that um so need to okay Bank stations Downstream brid Lings also uh River Cod number for X oh this one is not good I think so let us remove this uh crosssection the feature started I think so you see [Music] what is this it's not pink we don't need this thing started the thing yes I just delete it because of some information here lack of information I think it's great a ER message yes to oh yeah yeah yeah okay there is I think lack of inform information yeah did it okay okay I I think I I have to give a name again start stationing Bank station [Music] D successful now okay no Elation you see from 2D to 3D yes this the elevation of the crosssection itself yeah 3D Lar is created so we have every information now you see so now we have to create uh the bridge and Calver just as we created for the cross-sections we have to create here the bridge we have three Bridge so just similarity start ting bra okay line see this is one Bridge so Center Line at the center line of the [Music] bridge okay here [Music] also there there is we have three brid [Music] [Music] here sh okay for visibility we can change the the brid like this see re brace okay we can also see the attributes you see informations we need all this information to be uh filled so what we are going to do is we have to give them just like the crosssections we do the same um here Bri Calver to see we we just what where have the Miss okay okay what is [Music] this I have to delete this one [Music] yes TR this one is a set Bri so let us no also feat [Music] bra which one is the four [Music] one this is the four one you [Music] see [Music] [Music] no let me do this it's okay I will do it [Music] again [Music] for [Music] [Music] I can't change it I think okay let see this is not editable okay okay so now we can we can go ahead and uh Bri Cal R create the attributes assigned okay stationing successfully assign uh elevation also say so we have we are going to make it 3D successfully created so now we have created three Bridge you see but let us see the information we have you see Upstream distance from the I think from the from the down Downstream crosssection that is the Upstream distance the top WID of the has to be given not name also this can be also uh given for example the the name of the bridge or something like that so how can we edit it just simply Che [Music] click start editing this one for example you see the bridge name let us call it Bridge one top might be 10 m 15 m assume the Upstream distance that is the distance between from here to here we can actually measure it but okay we will measure it later okay let and this one and this one also for this one this is the name maybe bridge to to to maybe temp that assume and Upstream distance we measure it okay for this one as [Music] well this is name BR top is maybe 20 M 25 M assume we measure that one so save it still let us see if we are able to create okay so we have to edit it here that is Bridge three that is bridge two that is Bridge one Bridge one top p is 25 this is we say 50 it's just a name it doesn't affect uh this is 10 Upstream distance okay uh okay first after to stream distance so we can just like this let me let me measure from here to here [Music] see 36 ft4 in let us let us get because it is in US customary so the first is 36 6 ft 37 38 I the second might [Music] be 79 for the for theer might be [Music] langage is [Music] 77 46 okay that is I think the um yeah it has already changed okay that is 37 information just simply additional information okay cross is intelligent you see it will know by itself let us let go yes yeah 77 46 [Music] okay 391 76 34 save it okay this are information to [Music] so maybe we can run it again so that it will [Music] [Music] assimilate [Music] okay let us see [Music] again yes we see you includ it the are named us oh okay this is all information we [Music] need see uh The Next Step would be creating in effective flow areas you see there are areas where the where the water sto but there's no flow those areas are called in infective flow areas and they need to be identified so the hackas will know them in advance see and um consider it in its calculation for example most of the time in um River AB betterments around River Apartments there is stored water water that is just simply stored and do not move that uh that doesn't move see so let us let us um include the areas where uh around the apartment as an effective FL area and because you see her only considers where where there is a a cross-section line it is just simply for it cross to calculate the the to consider um special considerations around its crosssection so if the ineffective flow area is not connected with the the cross-section then it will not be considered a cross willn't consider it so we have to connect it with the crosssection line so this is an effective area similarly we do the same here stop editing okay start editing FL in effective areas create pogon maybe just like [Music] this [Music] [Music] [Music] m [Music] [Music] for [Music] [Music] for [Music] is [Music] [Music] [Music] [Music] [Music] [Music] [Music] okay we have to find the table here here you see oh in effective positions T you can see here open the table you see this user elevation is not given because we didn't we left the the current elevations in the popup uh window so that's why there is no us information here okay we are in the right track the next St creating obstructions the obstructions um considered are this this building you see if there is flood here you see this thing obstruct the flood flow act as obstruction so because there are two crosssection here here cross will consider this as an obstruction and um calculate accordingly so let us uh um do obstruction here it is the same start editing block obstruction obstructions polygon here you see this is the obstruction so the same what will do is here local struction save this the same click we did it so we can go now here blocked position you see you can see the same here yes so this is the information um all information to to use the data for the aass so the next step will be assigning a mining um value for the cross-sections so to assign uh mining mining um roughness we have to add that uh layer you see land is layer shape file this is the land it has all the information you see we have created already this land use but it is empty it doesn't have any while at the beginning while creating all layers we have created a layer but we don't have information if you have information we can put it there and um Can extract it from there but we don't have so the the they have given us with the exercise in value land use data so we can use that one you see this one this one and so we are going to extract from here information so just simply go here geometry and uh mining in where is mining n value extract in value extract in value from man field in value yes this everything is in right order it will extract for us from land use you see exact successfully so now the the our information our cross-section has n value as well so we have everything it is I think complete we can we can see see maybe the inv values can be seen here see mining table this is the one which extracted now this is n value you see see these are the IDS and so on so uh everything is now uh in order so it is time to to export it to the across to to use it in hair so but we need to to check some of the the information here this must be like this this must be like this all these are okay with your information C see m [Music] yes [Music] okay you see these are the 3D so we I think we have um we have everything in order so to we have to we have also we need also to check the the the table manually you see the information just I have have checked it here before so we need to check everything like that information so here here are some [Music] okay we don't need anything I me I think we uh we're good to go I think so export uh heck uh R data now is a time to export it I think s s s s let us see if it is going to export it for us okay I have to say it is processing for us to export all the datas to heras to be used in heras yeah it is us who is going [Music] to I think our our hairc data is in [Music] backer okay successfully exported okay now close this one save this one go to here cross click your cross we can open here cross here see we we can create new project the new project name maybe hacker hacker go exercise [Music] 2 inbox that exercise here okay okay we created a new project you see look um this is the new [Music] project what this here okay okay okay so that's matter now oh geometry is just simply taking geometry FES okay the geometry is already there but we can we come let us let us close this one exit across cross new project new project xterior okay it's just simp to give you name heck [Music] City X okay great for us X here x okay created I don't know what it is saying but this is now we import the gis format that we created see it is in back okay Us customer unit see our three Bridge okay here are the bridge you see our blocked areas do not consider this area as a flow area because we have already informed to ha cross the flow Direction like this like this like this we may have many many um many many three is here so we have all the cross-sections information here everything we don't need anything flow areas with the in so we just simply run hias if we have rainold data hydrological data as we can run it and find out everything the discharge and so on and so on that's that's all that's how to prepare a data for Haas in a very large de catchment big area you see for very very small areas we can we can just simply survey and take a crosssection but here AR can do for us automatically for larger areas it is wonderful see he he gas is wonderful AR is wonderful so hydrologist after to study you see all those stuffs Auto card argis these are very useful tools for hydrologist uh Auto cut 3D it has lot of uh water calculation ven also is very very good so I hope this might uh have done oh this might uh see give some information how to process uh or prepare the data so thank you very much for listening [Music] okay [Music]

Channel: Design Hydrology

Views: 15,791

Keywords: HEC-RAS Model, HEC-RAS Data Preparation, Long Reach Modeling in HEC-RAS, HEC-RAS Channel Geometry Data, HEC-RAS Cross-Section Data, Stream Data for HEC-RAS, Long River Segment Analysis, HEC-RAS Manning's n for Long Reaches, Data Requirements for HEC-RAS Modeling, HEC-RAS Model Setup for Long Reaches, HEC-RAS Floodplain Mapping, Longitudinal Profile in HEC-RAS, HEC-RAS Geospatial Data, Data Preparation for Extended River Sections, HEC-RAS Long Reach Hydrodynamic Modeling

Id: unGNx9wy1S4

Length: 116min 56sec (7016 seconds)

Published: Sun Jun 11 2017