HEC-HMS | T-3 | How to Set up HEC HMS Model

[@karnapradeep]

It's wonderful video of explaining from scratch about HEC-HMS. slow and clear. Great Job Man!

[@MdArifurRahmahn]

Glad you enjoyed it!

[@roshansuryakantmohanty1365]

Thank you sir for the detailed video it was very helpful .It has greatly helped me in my hydrological model for rainfall runoff .So clear and precise, beautifully done!!

[@MdArifurRahmahn]

You are most welcome

[@Just592]

@@MdArifurRahmahn sir.. Please clarify me one thing.. Shall we calculate the runoff without using Hec-GeoHms for Hec hms?? Thanks in advance.

[@MdArifurRahmahn]

@@Just592 yes

[@lotamole]

Thank you! Your video was very helpful in creating my model for my Hydrological Modelling class!

[@MdArifurRahmahn]

Glad it helped!

[@naturalsoundofrainfall]

YOUR VIDEO HAS REALLY HELPED A LOT IN MY HYDROLOGY CLASSES THANK YOU SO MUCH I TRULY APPRECIATE

[@MdArifurRahmahn]

wc

[@dbo9690]

Thank you so much for the clear and practical example.

[@MdArifurRahmahn]

You're very welcome!

[@godavariiswr832]

Very useful Tutorial

[@MdArifurRahmahn]

Many many thanks

[@muafiatabasam5654]

@Md Arifur Rahman i have just started watching ur videos, how can i find those deleted files u uploaded to dropbox?

[@kayecagape2924]

Thank you so much ❤️ such a big help ❤️

[@MdArifurRahmahn]

You're so welcome!

[@laradjiyassamina5432]

hay. i m an algérien i m so thankfull 4 ur vedeos would u please add vedeo explaining what type of datas I need to collect before starting my modelin u doing good work thanks a lot

[@MdArifurRahmahn]

Hi, thanks for your query. The dataset depends on the purpose of the modeling. If it is only for an event, the required dataset is different from a continuous model. However, the basic data for all types are DEM, rainfall, land use and land cover, soil classification, discharge, etc. I offer training on this modeling, where I demonstrate how to set up the model from scratch, including but not limited to input generation, parameter estimation, calibration and validation, etc. For more info, send message to [phone] on WhatsApp.

[@yengyangnaotou9590]

Thank you very much for your wonderful Video Md Arifur Rahmahn

[@MdArifurRahmahn]

You are most welcome

[@ashebirhailu-j7l]

Tanks very much

[@ashebirhailu-j7l]

❤all hydrolic soft wer

[@mapleleaves2004]

Great job, but no need for junction1, the downstream of subbasin 1 is simply reach1

[@raidanmaqtan2652]

very helpful. thank you so much

[@aparnadeulkar5940]

It's nice explanation.can you make video on why HEC-HMS model is use for Rainfall-Runoff modelling? And separate video on what is input data required for HEC-HMS model and what it's put. Thank you

[@aparnadeulkar5940]

It's request you to make more videos on this software for Rainfall-Runoff modelling

[@rohi7597]

kzbin.info/www/bejne/nnusmHSjn9ygg9U Here it is

[@MdArifurRahmahn]

Thanks for the query. I offer training on this software, where I demonstrate how to develop a model from scratch. For more details, send message to me on WhatsApp at [phone]

[@ancopersia9195]

Thank you for this video, it is a very usefull explication about all the components of the HEC-HMS model. Can i ask you about the K coefficient? Is there any equation to get the K value using the differents parameters of the river? Do you recommend any bibliography or video to study how to get the value of the K coefficient for different situations? Thank you!

[@MdArifurRahmahn]

Hi thank you for your query. Yes, it’s a routing parameter, and it has specific guidelines to estimate its value from channel and basin characteristics. Even though I provide all materials to calculate the model parameters but you can study any hydrology books for your calculations.

[@awanthijayasekara1873]

Thank You

[@MdArifurRahmahn]

You're welcome

[@rukaiyanasik9204]

thanks. was very useful

[@MdArifurRahmahn]

You're welcome!

[@kanishksaxena5315]

Sir, I have done all the steps mentioned in this video. But when I tried to Run Compute All Elements for Test Run, It is showing following Errors: WARNING 10351: Could not connect precipitation gage "" to data in the time-series manager. NOTE 20364: Found no parameter problems in meteorologic model "Met 1". NOTE 40049: Found no parameter problems in basin model "Basin 1". What should I do to rectify this problem ?

[@sandeepsandy1846]

May I know how you downloaded that data which you r inserting. Like u said ARCGIS . Also if I get some video or website to download a large data of my sub-basin , it would be helpful.

[@MdArifurRahmahn]

Thank you Sandeep for the query. You can attend my training session on this and will learn more about it from scratch. For further details post your query to WhatsApp @ [phone]

[@ganadeepansubramaniam2575]

Is the CN is a common value for all sub-basins or should we find the CN separately for each sub-basin?

[@MdArifurRahmahn]

No, CN varies from basin to basin and you have to calculate that CN using land use information and soil data.

[@sigmagraphics3250]

The video is all good, but I'm stuck trying to get the relevant maps, like the ones you have used, can you tell me how to get those for a specific area?

[@MdArifurRahmahn]

Thanks for the query, yes you can download that area for your study area, I have other videos where I have demonstrated how to download the shapefiles or the latest version of HEC-HMS model does not need the shapefiles but the DEM (Elevation data). I have another video that demonstrates how to create a HEC-HMS model from DEM data. I encourage you to watch that as well.

[@nouralijl8520]

thank you , good job

[@MdArifurRahmahn]

Thank you too!

[@mohdhafiz604]

can we use ARI as the input for precipitation. how to do it sir. thanks

[@nirmalkalvani2327]

If we don't have any observed data of discharge then how we can calibrate our model in Hec-Hms.??

[@MdArifurRahmahn]

Thank you for the query. For model calibration, we need to have observed or any simulated data. If the study area is located within USA, we have simulations from National Water Model (NWM) for 2.7 million streams that covers literally every stream segments. So, we can easily calibrate against that. However, if there is not observed data, you need to extend your model all the way to an upstream stations or set up the model for a nearly watershed where observation exists, then transfer the model parameters to your ungauged watershed after calibrating the model for the gauged one. I usually demonstrate all these in my training sessions. For more detail, send message to [phone] on WhatsApp.

[@nnasehir]

How can we know the large of subbasin? Is there any range?

[@MdArifurRahmahn]

Classification of Watersheds by Size: Three types of watershed are distinguished according to size: Small size: < 250 km2 Medium size: between 250 km2- 2500 km2 Large: >250 km2 This classification is vague, but the implication is in terms of spatial heterogeneity and dampening (averaging) of hydrological processes.

[@maiya_angel]

Hello please how to input time in control specifications? I have precipitation data in mm/day. For example I have rainfall data from 01 july 2019 to 31 july 2019 in mm per day . Every data is recorded at 9:00 am . How to input start time and end time with date from given time? Also there are zero rainfall in some days in between and 1 july too. Please please please do reply. I have very little time remaining for completing my thesis.

[@MdArifurRahmahn]

Hi, thanks for the query. I have shown everything in the video including control specification. if you still need help on this modeling, you can attend my training. For details, send message to [phone] on WhatsApp.

[@felixsanya361]

Hello sir, am from uganda, how can i generate a model when am using the soil moisture accounting method under the (loss method) instead of the SCS curve number method

[@MdArifurRahmahn]

yes, it's possible to use SMA instead of CN. if the model is for long time, such as for few years then using SMA is effective. But you have to calculate the parameters which takes time ans needs to process landuse an soil information.

[@junaidalinasir1500]

The File for practice is deleted from dropbox

[@kirtichowdhury6060]

Sir iam following your video. I have downloaded the hec-hms model .I have also created the catchment, stream and point shape file. I have been trying to paste the maps on the software. The line shape file and the polygon shape file displays well but point file does not get open properly.If I open only the point shape file it gets opened but the whole things disappear when i try to open all the shape files together. Can you please help me out?

[@Ashrumochan]

Use the latest version of software, u can delineate the basin by the software only

[@MdArifurRahmahn]

Thank you for the query, You can watch this to solve your problem : kzbin.info/www/bejne/qXm6mKKmpJqreMk

[@bhavanasonawane1365]

How to calculate input data (viz. time of concentration, storage coefficient, impervious percentage, etc.) for every subbasin?

[@MdArifurRahmahn]

Hi Bhavana, thanks for the query. I demonstrate this in my training. For details send message at [phone] on WhatsApp. Thanks

[@minassiekassaye7299]

Thank you. It is wonderful. Could you clear me that how can we export the output graph to including in the writing up text? And also, would you email me the HECHMS tutorial data? thank you.from Haramaya University Ethiopia.

[@MdArifurRahmahn]

yeah, please use my email : [e-mail]

[@yigitalpkara801]

NOTE 15301: Began computing simulation run "Test_Run" at time 02Ağu2020, 13:39:37. NOTE 20364: Found no parameter problems in meteorologic model "Met 1". NOTE 40049: Found no parameter problems in basin model "Basin 1". WARNING 41743: Initial abstraction ratio for subbasin "Subbasin-1" is 0,95. WARNING 41743: Initial abstraction ratio for subbasin "Subbasin-2" is 0,45. WARNING 41169: Muskingum routing is unstable with the given parameters for reach "Reach-1". WARNING 41169: Muskingum routing is unstable with the given parameters for reach "Reach-3". NOTE 41743: Initial abstraction ratio for subbasin "Subbasin-3" is 0,2. WARNING 41169: Muskingum routing is unstable with the given parameters for reach "Reach-2". NOTE 41743: Initial abstraction ratio for subbasin "Subbasin-4" is 0,2. NOTE 41743: Initial abstraction ratio for subbasin "Subbasin-5" is 0,2. WARNING 41169: Muskingum routing is unstable with the given parameters for reach "Reach-4". ERROR 15500: Cannot determine units system for DSS time-series Pathname = //Subbasin-1/PRECIP-INC//15MIN/RUN:Test_Run/ units = "IN" NOTE 45850: Compute failed while computing excess for period ending at 25 August 2017, 01:15. WARNING 15303: Aborted run "Test_Run" at time 02Ağu2020, 13:39:37.

[@013_axelwidjanarkosibarani8]

The data has been deleted, can you please reupload the data?

[@vidyakn7764]

Hello sir I followed the same steps but my simulation run got fail how I can resolve

[@rohi7597]

What error u r getting?

[@MdArifurRahmahn]

Did you check all the parameters required to run the model? Please check the links also if they are rightly connected to the nodes.

[@Kush.93]

hello sir.. i have few queries on hec hms.. how can i contact u.. email?

[@MdArifurRahmahn]

[e-mail]

[@bariprottoy5353]

Assalamuwalaikum sir. i m from Bangladesh. it will be a great help for me if u upload the complex modelling with all necessary calculation like muskingum K & x,time series etc.

[@star-ph6nn]

you could search it on the website www.hec.usace.army.mil

[@rohi7597]

kzbin.info/www/bejne/nnusmHSjn9ygg9U This video may help

[@MdArifurRahmahn]

Thanks for the query. I offer training on this software, where I demonstrate how to develop a model from scratch. For more details, send message to me on WhatsApp at [phone]

[@peanutandbutterdachshund6916]

How did you get the shp file?

[@ayeshwinilama8739]

You will get the shp files from GIS while delineating the basins

[@rohi7597]

In upper tab there is a background management.. Where u can add your .shp file

[@junaidalinasir1500]

DEM File is deleted

[@EngrBilal-te5nw]

Can any body tell me how HEc HMS calculate flood discharge ro 2,5,10,50 years ?

[@MdArifurRahmahn]

The main climatological input forcing of HEC-HMS is rainfall. If you are able to calculate the rainfall for those years, the model will compute the discharge for you.

[@EngrBilal-te5nw]

@@MdArifurRahmahn sir can u recommend any guide manual or channel which cover complete discharge calculations for storm frequency.

[@MdArifurRahmahn]

@@EngrBilal-te5nw I have sample here, I did not find any, that's why trying to make one. kzbin.info/www/bejne/sHvIl2iombF5b6M

[@EngrBilal-te5nw]

@@MdArifurRahmahn storm frequency through Software?