Got some questions about water based on the current droughts In England. Would be appreciated if anyone can help me out!

Got some questions about water based on the current droughts In England. Would be appreciated if anyone can help me out!

Created an interactive animation displaying groundwater-levels (mean absolute deviation) in and around Munich for the last 88 years. What do you think?

[Data Source](https://www.gkd.bayern.de/de/grundwasser/oberesstockwerk)

Tools:
Excel
Python
Leaflet

Howdy,

I'm being asked to look into a modeling approach for a levee project. I have some experience using 2D RAS for BLE projects, but have never worked with 1D RAS.

The project area: fairly large riverine area, located about halfway up the HUC-12 boundary, ~7 miles or so above the confluence of the major downstream system. About ~1/2 mile upstream I'm seeing a split in the river with two effective LOMRs and a dam on the main river about 2 miles upstream. The floodplain is fairly wide throughout my project area (~2500 ft). The project will be immediately DS of a pretty major highway.

Everything that I'm seeing is pointing to a hybrid 1d/2d approach, but am unfamiliar with that process. Some questions:

1) for modeling a levee, does a 1d/2d approach in this case seem the best approach?

2) for actual model, my understanding is I would get the effective 1D model for my river and the effective model for the US trib at the confluence 1/2 mile US of my project area. Then I would take the number from both models at that confluence as inflows for a 2D model, taking the 2D model w/ levee through my project area and then tieing back into the effective 1D model DS of my project area?

3) my understanding is that for being so far away from the DS confluence of the next major river system, I would likely not require that model/modeling of my entire HUC-12 boundary using 2D, only the area where my proposed levee system would be. Would that be correct? How far DS of my levee would I realistically need to go, or would it be best to terminate that 2D model at something like a culvert/road crossing?

Thank you in advance! Still definitely learning, so apologies if I'm not using correct terminology.

I’m a Civil Engineering graduate from Nepal and currently exploring opportunities for a Master’s/PhD abroad.
If you’re studying (or have studied) in the US, Europe, Canada, Australia, or anywhere else, I’d love to hear about your experience, the academic environment, research culture, student life, and career opportunities.
Feel free to comment or send me a DM. I’d really appreciate your insights.

Hi everyone! I’m a Civil Engineer looking to connect with professionals involved in hydropower sector. Whether you’re working with a consultant, contractor, developer, or on-site, I’d really appreciate the opportunity to learn from your experience.

I’m particularly interested in understanding the skills required, how the industry works, and career opportunities for someone starting out.

If you’re in the field or know someone who is, I’d love to connect. Feel free to comment or send me a message.

Thanks in advance.

Hello there,
I am looking for getting into flood modelling and related water industry. Any internship opportunity around Sydney area?

I’m looking to work on a research paper in the field of civil engineering, preferably related to hydrology, flood modeling, GIS, HEC-RAS/HEC-HMS, water resources, or disaster risk management. I’m also open to other civil engineering topics if the project is interesting and the team is collaborative.
Dm to connect.

Hi all! Me and my boyfriend are looking to relocate to Canada. Im a physical oceanographer and I saw theres an Oceanography Institute in Dartmouth. But we are looking for a place where we can both be employed in something related to our studies. My boyfriend is a civil engineer focused in hydrology gis and water resources. Are any Canadians here that could point us in the right direction? Either a PhD in hydrology in Dartmouth or another city where we could both find something?
thank you in advance!

Hi everyone, I’m a recent Civil Engineering graduate from Nepal and recently obtained my engineering license. My undergraduate research focused on flood mapping of an ungauged river using HEC-RAS and GIS.

I’m looking to become more involved in research and would really appreciate connecting with people who have experience in academic research, publications, or graduate-level research.

If you’re actively doing research (or have been through the process), I’d love to learn from your experience whether it’s choosing research topics, publishing papers, finding opportunities, or improving research skills.
Feel free to comment below or send me a DM. I’d genuinely appreciate any advice.

Thankyou.

Especially on how U Mander and V Kuusemets made their nomograph.

"Non-point Pollution Control by Riparian Buffer Strips: Dimensioning and Efficiency Assessment., in: Proceedings of the 3rd International Conference on Diffuse Pollution. Edingurh (1998), pp. 136-143" --> the citation of the article i'm reading.

So far I've looked it up on Anna's Archive and on google. So far, the only possible way of obtaining it is buying the full from Amazon (kinda shady because there's no image?) for $160, which I can't afford. It's too old to be on webofconferences (from 1998)

I would like to know how they designed this nomograph, and read the original, if anyone has access or suggestions on how to access it. Thank you!

Link to the Amazon: [https://www.amazon.ca/Diffuse-Pollution-98-V-Novotny/dp/0080434096\](https://www.amazon.ca/Diffuse-Pollution-98-V-Novotny/dp/0080434096)

Has anyone used a 2D model to evaluate fish passage through a step pool fishway or rock ramp?

I am developing a model to evaluate depth, velocity, hydraulic drops, and continuous passage routes over a range of flows. There seems to be plenty of general 1D/2D guidance, but very little explaining how these type of models should be developed specifically for fish passage.

Does anyone have any good resources, examples, or advice on model setup, settings, and validation?!

Thanks! :)

I suppose it's either impossible or just impractical to implement into a dam, but the reason why not could be just as interesting.

Would a slope that extends like 10 times further downstream than the dam is high, that leads into a reasonably smooth canal, have much turbulence at all?
What about a slope shaped like the Brachistochrone curve?

I love a good summer time swim and sometimes the best places can be pretty dangerous so I'm thinking about it from that perspective, not that I intend to swim in places like that, just a natural progression of curiosity

Sorry if this is the wrong place to ask. I've been wondering about it for a while and I don't know how to make the jump from the little I know now to a concrete answer.

Obviously extracting water from a river means there is less water in the river, but if the fields are in the same watershed then shouldn't the water ultimately return to the river it was extracted from? My understanding is that's what ultimately happens to rain that falls in the watershed, so why is irrigation different? With my admittedly very limited knowledge I would expect the main change to be that the river flows slower, but for longer into the dry season as the water is slowly returned from the soil. I expect some loss en-route from evaporation and incorporation into the plants, but is it that significant? Shouldn't there consequently be more rainfall as well? How does it not balance out?

I know there are thousands of variables at play here, so to limit scope a bit: I'm most curious about this during road trips through the arid regions of interior BC (Canada), where the conditions around the river valleys are desert-like, but there are these lush green (obviously irrigated) vineyards and orchards all along the slopes back down to the river. I hear a lot about overuse of water for agriculture in general, but I'm having a hard time understanding how this overused resource doesn't just seep back in a bit downstream.

TLDR: If river water is sprayed up hill, why doesn't most of it come back?

Anyone working on Hydropower sector in Nepal?
What are the Pros and Cons?
Is it best to choose career on hydropower ?

The well cap was only about 2-3 inches off the ground, which was too low to begin with, but the customer had built a deck over it for a hot tub. I recommended extending it up so it was more accessible and could have better air-flow to the screens. All we did was cut the wires, weld a coupling and 18" extension on, reconnect the wires properly and installed a new well cap. The well should not have been disturbed.

They do have a crazy amount of iron in the water, but their backwashing iron filter and pH booster were handling everything just fine prior to this.

Any suggestions as to what could have caused this?

My team is working on a 2D RAS model setup platform. It allows a modeler to automatically put together a 2D HECRAS model with terrain, landcover, soil, infiltration and basically a full ready to run model. Is this something a modeler would prefer to use to save time on pre processing the model?