Could you please make a tutorial on how to calculate these values in excel?
@sumakorualot18799 күн бұрын
Wonderfully explained video, I have also seen HEC-HMS training video of yours and they are also amazing. Thank you for sharing these training videos, they are so much of useful information and the way you teach from basics to solving errors is just amazing.
@Babymilo4915 күн бұрын
Thanks sir
@LawrenceNte-Nwafor17 күн бұрын
Sir, it appears the gSSURGO Soil data is only for USA soils. I used global soil data from FAO and could not find HSG on the attribute table. Any help?
@hydrologyvideos825312 күн бұрын
there is a global HSG dataset available. check this link: cmr.earthdata.nasa.gov/search/concepts/C2216864285-ORNL_CLOUD.html
@nanandongotehua25 күн бұрын
Hello dear trainer, I would like to know how to bring out the performance coefficient (Nash...) in HECRAS?
@hydrologyvideos825312 күн бұрын
You can compute NS if you have two time series. if you know the observed elevations at cross-sections, you can compute NS separately, but not in HEC-RAS. if you are trying to assess the accuracy of inundation extent, then you need to use spatial indices such as C or F index. You can google and find more about these.
@niveshsakharwade849227 күн бұрын
It's zero 0 not O
@swastiksubedi28 күн бұрын
I am not getting any data file .. What can I do??
@QuizBeta-ia14 күн бұрын
+1
@hydrologyvideos825312 күн бұрын
web.ics.purdue.edu/~vmerwade/data/
@Chiragarya-h9jАй бұрын
concept clear ho gya sir
@joejr.3874Ай бұрын
why calculate the slope if youre not gonna use it?
@rumbo5664Ай бұрын
I want to practice all the tutorials about the HEC_HMS model. Where can I get the DEM? Thank you!
@hydrologyvideos825312 күн бұрын
web.ics.purdue.edu/~vmerwade/data/
@gonzalosotomayor4914Ай бұрын
Thanks for the video; it is very illustrated. In the context of flow data, (i) are these ne m3/s? (ii) For PF1, PF2, and PF3, how can I define these values? Are these geographic positions? (iii) Once I get the flow information for tributaries and main reach a, I suppose we can use data from HEC HMS for maximum precipitation to model flood scenarios for different return periods. Thanks in advance for the answer.
@hydrologyvideos825312 күн бұрын
flow values are provided at upstream boundary condition for each each. you can get these from HEC-HMS or stream gauging stations.
@amisourov2304Ай бұрын
very well explained. Loved it. Good wishes <3
@ahmetsargin3738Ай бұрын
thanks
@ahmetsargin3738Ай бұрын
thanks
@aa-zq1ld2 ай бұрын
nice vid!
@OUMARANGOUARIGANAABDOU2 ай бұрын
hello, i have also diculty to upload the observed data. Could you send me also the sample file
@hydrologyvideos82532 ай бұрын
Here is a sample file: web.ics.purdue.edu/~vmerwade/data/obs_rch_streamflow.csv
@sprautz2 ай бұрын
I can develop 1D model but my issue is I have a 30m DEM which is not sufficient for developing river geometry. How can I use this DEM to infer innundation by over topping at various cross sections?
@hydrologyvideos82532 ай бұрын
You need better DEM. Look for papers (search for Merwade) from my group where we have developed methods and tools for creating river geometry where there is no data.
@MelissaPerez-d5g2 ай бұрын
Clark Edward Lewis Angela Miller Nancy
@GeraldKachilele2 ай бұрын
Thanks mate
@GeraldKachilele2 ай бұрын
Thanks mate
@geykum_shakeshigh2 ай бұрын
Am a beginner am loving this
@marufmuntasir2843 ай бұрын
Thank you for the great videos! I was wondering where can I find your Arc Hydro tutorials. I went throught the playlist but nothing found related to Arc Hydro.
@hydrologyvideos82532 ай бұрын
web.ics.purdue.edu/~vmerwade/tutorial.html
@yousraelhaylany11913 ай бұрын
Hello, please I don't know where I can find the control specification data, for the rainfall data I have present the maximum for each year. Is there any way to skip this step or any method to know what to add?
@sprautz3 ай бұрын
This a very good example when yu have a very high resolution DEM. Please do make a video on situations where you have coarse DEM resolution such as DEM 30m form SRTM.
@louissambou39423 ай бұрын
Thank you so much for these very clear explainations. I have just 1 problem, when I open Map Layers, select a layer and click on Draw properties, nothing shows up, I can't enter Draw properties for example for the DEM colors. Can you help me please ?
@easterlilyshylla18673 ай бұрын
Sir i want to know why 0.5, 0.25 for Muskingum k and Muskingum x?
@hydrologyvideos82533 ай бұрын
These are just starting values. No specific reason. Based on your results, you can change these values to match observations or if you have historical discharge data, there are ways to estimate K and X. You can look up online on how to estimate K and X.
@ibrahimhussein96053 ай бұрын
Hello, i came across an error while running QSWAT Rev681. the 64-bit debug " forrtl : error (72): floating overflow" .Kindly help with the solution. Thank you
@hydrologyvideos82533 ай бұрын
Unfortunately i am not an expert on software issues. You may use google to get help
@prernaprasad76654 ай бұрын
This was very useful. Thankyou
@KilasBerpikir4 ай бұрын
Hello sir, could you share input data again? because link box can't open. thank you for the videos. It help me to understanding hec hms as beginner.
@deepeshshrestha-q8i4 ай бұрын
thank you so for your hard work, do you also have ArcSWAT,
@hydrologyvideos82533 ай бұрын
i do not have videos on arcswat.
@AsifKhan-i7p4 ай бұрын
hi dear my friends pleas send me the excel sheet for frequency analysis
@sprautz4 ай бұрын
I am new to HEC RAS Hydraulic Modeling. I have created my geometry using the ras mapper, saved it and opened in the geometry editor. However, one thing I noticed is the the Cross Section Coordinates table have an extra column with n-value header. I think it is not supposed to be there. Its present makes it difficult to set Manning's n for the LOB Channel and ROB. How did this extra column appear there and how can I remove it? many thanks for anyone helping me Sylvester
@hydrologyvideos82533 ай бұрын
cross-sections will have n values for LOB and ROB. You should not remove them.
@JeoAndBoyet4 ай бұрын
Can you please tell me Why did you select 0.5 for the K parameter?
@hydrologyvideos82533 ай бұрын
no specific reason. It is just a starting value.
@Venuchesa4 ай бұрын
where can i get dataset
@Venuchesa4 ай бұрын
couldn't open the zip file
@arunborgohain15005 ай бұрын
Sir, I have to convey my love & gratitude for such a nice presentation ! Your extensive help while presenting a complex subject in such a simplistic way while adopting a systematic approach 🙏my best wishes 💕
@ObaidabinJahra5 ай бұрын
EXTRA ORDINARY AND VERY GOOD METHOD TO UNDERSTAND HEC-HMS EASILY
@niveshsakharwade84925 ай бұрын
Call it 'zero' instead of calling 'not' or 'O'.
@ryanarius93595 ай бұрын
Hi there, I have a question. Where did you get the discharge data for your simulation ? Did you estimated it using the SCS-CN method or is it through a observation or trials of test in the specified area?
@hydrologyvideos82533 ай бұрын
Discharge is the output from the simulation. I also have observed data from a gauging station at the outlet. The CN values used in the model were obtained using soil and land use data. There are videos showing how to do that on the channel.
@TheTshirtBusiness5 ай бұрын
hi, hopefully you'll see my message, how do you see the area of the inundation polygon for all three reaches for each simulation?
@hydrologyvideos82533 ай бұрын
you want to just see the area or calculate the area?
@easterlilyshylla18675 ай бұрын
Sir please make Video on 2D modelling.
@shamsudeenayeni32455 ай бұрын
Your presentation was superb; great job, and thank you very much.
@jalepezo5 ай бұрын
Thank u so much sir, my thesis is now about statistical modelling in hydrology
@MUHAMMADIDREES-do7wh6 ай бұрын
have u provided the files here that you are working on? someone please help me out
@hydrologyvideos82535 ай бұрын
you can find the files here: web.ics.purdue.edu/~vmerwade/data/
@haseenabeegum92016 ай бұрын
👍
@cusco4x2956 ай бұрын
Only that?? There is a lot of information that we can visualise. The video is incomplete.
@hydrologyvideos82536 ай бұрын
thanks for your input! maybe you can tell what else you want to see through visualization.
@sinobsent4556 ай бұрын
i saw a formula for N=b*A^0.2, and usually b=0.8 try it and let me know if it worked out for u.
@sinobsent4556 ай бұрын
i saw a formula for N=b*A^0.2, and usually b=0.8 try it and let me know if it worked out for u.
@joviandito6 ай бұрын
please tutorial in excel sir
@Jithakr7 ай бұрын
While doing preprocess drainage it takes long time 😢 i did not get the results